首页 > 最新文献

2010 International Conference on Mechanic Automation and Control Engineering最新文献

英文 中文
Analysis of stress relaxation and data acquisition in the Compression Process of Herbage Materials 牧草物料压缩过程应力松弛分析及数据采集
Pub Date : 2010-06-26 DOI: 10.1109/MACE.2010.5536389
Li Xuying, Duan Jianmin
in order to obtain rheological properties such as the mechanical property, stress relaxation and creep in the Compression Process of Herbage Materials, based on the compression test platform of herbage materials, the virtual instrument system is constructed by using software Labview and NI data acquisition card. This system can collect compressive force, compressive force of test platform wall and deformation of herbage materials and so on during compression process, and can process all data in real time. Taking alfalfa as experimental materiel, stress relation experiments are conducted on baling test platform in five different sections, which has posted that stress relaxation curves of compressed alfalfa piece have same character in different sections, i.e. the stress sharply reduce in the initial period and change slowly in the later period. Meanwhile, the initial stress is more and the stress after relaxing is more. The viewpoint of choosing compression frequency by stress relaxation ratio is educed, and it suggests that compression frequency of baler shouldn't be too high. Compression frequency can be chosen lower if initial density is bigger. Therefore the aims of reducing energy consumption, ensuring productivity and stable product quality can be achieved.
为了获得牧草材料在压缩过程中的力学性能、应力松弛和蠕变等流变特性,基于牧草材料压缩试验平台,利用Labview软件和NI数据采集卡构建了虚拟仪器系统。该系统可以采集压缩过程中的压缩力、试验台壁的压缩力和牧草材料的变形等数据,并能实时处理所有数据。以紫花苜蓿为实验材料,在5个不同截面的压包试验台上进行了应力关系实验,结果表明,紫花苜蓿片压缩后的应力松弛曲线在不同截面具有相同的特征,即初期应力急剧减小,后期变化缓慢。同时,初始应力较大,松弛后应力较大。提出了按应力松弛比选择压缩频率的观点,认为打包机的压缩频率不宜过高。初始密度越大,压缩频率越小。从而达到降低能耗、保证生产效率和稳定产品质量的目的。
{"title":"Analysis of stress relaxation and data acquisition in the Compression Process of Herbage Materials","authors":"Li Xuying, Duan Jianmin","doi":"10.1109/MACE.2010.5536389","DOIUrl":"https://doi.org/10.1109/MACE.2010.5536389","url":null,"abstract":"in order to obtain rheological properties such as the mechanical property, stress relaxation and creep in the Compression Process of Herbage Materials, based on the compression test platform of herbage materials, the virtual instrument system is constructed by using software Labview and NI data acquisition card. This system can collect compressive force, compressive force of test platform wall and deformation of herbage materials and so on during compression process, and can process all data in real time. Taking alfalfa as experimental materiel, stress relation experiments are conducted on baling test platform in five different sections, which has posted that stress relaxation curves of compressed alfalfa piece have same character in different sections, i.e. the stress sharply reduce in the initial period and change slowly in the later period. Meanwhile, the initial stress is more and the stress after relaxing is more. The viewpoint of choosing compression frequency by stress relaxation ratio is educed, and it suggests that compression frequency of baler shouldn't be too high. Compression frequency can be chosen lower if initial density is bigger. Therefore the aims of reducing energy consumption, ensuring productivity and stable product quality can be achieved.","PeriodicalId":6349,"journal":{"name":"2010 International Conference on Mechanic Automation and Control Engineering","volume":"1 1","pages":"5892-5895"},"PeriodicalIF":0.0,"publicationDate":"2010-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72553651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research on remote intelligent fault-diagnosis of CNC lathe based on bayesian networks 基于贝叶斯网络的数控车床远程智能故障诊断研究
Pub Date : 2010-06-26 DOI: 10.1109/MACE.2010.5536523
Yuchun Li, Jianzhong Fu, Xinhua Yao, Huifeng Jiao
Considering the development of smart machine tools and internet-based manufacturing and in order to manage the manufacturing process more efficiently, a unit of remote intelligent fault-diagnosis based on Bayesian Networks (BN) was designed and software based on internet was realized as well as the case study concerning CNC lathe. It is a compensation of machine tool's self-detection whose major job is to find the fault of hardware and programming. The case study proved the reliability and advantages of the intelligent model based on BN.
考虑到智能机床和互联网制造的发展,为了更有效地管理制造过程,设计了基于贝叶斯网络(BN)的远程智能故障诊断单元,实现了基于互联网的故障诊断软件,并对数控车床进行了实例分析。它是机床自检测的一种补偿,其主要工作是发现硬件和程序的故障。实例研究证明了基于BN的智能模型的可靠性和优越性。
{"title":"Research on remote intelligent fault-diagnosis of CNC lathe based on bayesian networks","authors":"Yuchun Li, Jianzhong Fu, Xinhua Yao, Huifeng Jiao","doi":"10.1109/MACE.2010.5536523","DOIUrl":"https://doi.org/10.1109/MACE.2010.5536523","url":null,"abstract":"Considering the development of smart machine tools and internet-based manufacturing and in order to manage the manufacturing process more efficiently, a unit of remote intelligent fault-diagnosis based on Bayesian Networks (BN) was designed and software based on internet was realized as well as the case study concerning CNC lathe. It is a compensation of machine tool's self-detection whose major job is to find the fault of hardware and programming. The case study proved the reliability and advantages of the intelligent model based on BN.","PeriodicalId":6349,"journal":{"name":"2010 International Conference on Mechanic Automation and Control Engineering","volume":"14 1","pages":"2665-2668"},"PeriodicalIF":0.0,"publicationDate":"2010-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78749149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Formation and control of grinding-hardened layer 磨削硬化层的形成与控制
Pub Date : 2010-06-26 DOI: 10.1109/MACE.2010.5535970
Judong Liu, Jiezhen Zhuang, Zhilong Xu
On the basis of the surface grinding-hardening test, the microstructures and property of the grinding-hardened layer depth of 40Cr steel were studied. The results show that under the coupling actions of the thermal and mechanics during the grinding hardening process, there are no remarkable effects of the grinding conditions upon the microstructure and microhardness value in high-hardness area of the hardened layer, and the completely hardening zone whose microhardness is between 630HV0.5 and 680HV0.5 is of lathe martensites and a few twinborn martensites. As the depth of cut increasing, or table speed decreasing, and the grinding wheel with fine grain size and high hardness is adopted at the some time, the depth of hardened layer and the maximal compressive residual stress and its influencing depth of hardened layer would increased, thus longer service life of grinding-hardening parts can be obtained.
在表面磨削硬化试验的基础上,研究了40Cr钢磨削硬化层深度的组织和性能。结果表明:在磨削硬化过程中热、力学的耦合作用下,磨削条件对淬硬层高硬度区显微组织和显微硬度值的影响不显著,显微硬度介于630HV0.5 ~ 680HV0.5之间的完全硬化区为车削马氏体和少数孪生马氏体;随着切削深度的增加或工作台速度的降低,以及在一定时间内采用细粒度、高硬度的砂轮,淬硬层深度和最大压残余应力及其影响淬硬层深度都会增大,从而获得较长的磨削淬硬件使用寿命。
{"title":"Formation and control of grinding-hardened layer","authors":"Judong Liu, Jiezhen Zhuang, Zhilong Xu","doi":"10.1109/MACE.2010.5535970","DOIUrl":"https://doi.org/10.1109/MACE.2010.5535970","url":null,"abstract":"On the basis of the surface grinding-hardening test, the microstructures and property of the grinding-hardened layer depth of 40Cr steel were studied. The results show that under the coupling actions of the thermal and mechanics during the grinding hardening process, there are no remarkable effects of the grinding conditions upon the microstructure and microhardness value in high-hardness area of the hardened layer, and the completely hardening zone whose microhardness is between 630HV0.5 and 680HV0.5 is of lathe martensites and a few twinborn martensites. As the depth of cut increasing, or table speed decreasing, and the grinding wheel with fine grain size and high hardness is adopted at the some time, the depth of hardened layer and the maximal compressive residual stress and its influencing depth of hardened layer would increased, thus longer service life of grinding-hardening parts can be obtained.","PeriodicalId":6349,"journal":{"name":"2010 International Conference on Mechanic Automation and Control Engineering","volume":"7 1","pages":"3028-3031"},"PeriodicalIF":0.0,"publicationDate":"2010-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78379528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Multi-vehicle system design for Mobility Allowance Shuttle Transit Service 机动补助穿梭运输服务的多车系统设计
Pub Date : 2010-06-26 DOI: 10.1109/MACE.2010.5536184
Yangsheng Jiang, Liang Yun, Huijun Liu, Xuemei Song
In the future urban transport system development strategy, it must be the emphasis to construct a multi-system interactive urban comprehensive public transport system with a certain service level. As an important integral part of this system, Para-transit, especially Mobility Allowance Shuttle Transit service (MAST for short) has important theoretical significance and application significance. In this paper, we developed a multi-vehicle system for MAST and a heuristic insertion algorithm, based on the research and analysis on the single-vehicle system.
在未来的城市交通系统发展战略中,必须把建设具有一定服务水平的多系统互动的城市综合公共交通系统作为重点。辅助交通,特别是出行补贴穿梭交通服务(简称MAST)作为该系统的重要组成部分,具有重要的理论意义和应用意义。本文在对单车系统进行研究和分析的基础上,开发了一种多车系统和启发式插入算法。
{"title":"Multi-vehicle system design for Mobility Allowance Shuttle Transit Service","authors":"Yangsheng Jiang, Liang Yun, Huijun Liu, Xuemei Song","doi":"10.1109/MACE.2010.5536184","DOIUrl":"https://doi.org/10.1109/MACE.2010.5536184","url":null,"abstract":"In the future urban transport system development strategy, it must be the emphasis to construct a multi-system interactive urban comprehensive public transport system with a certain service level. As an important integral part of this system, Para-transit, especially Mobility Allowance Shuttle Transit service (MAST for short) has important theoretical significance and application significance. In this paper, we developed a multi-vehicle system for MAST and a heuristic insertion algorithm, based on the research and analysis on the single-vehicle system.","PeriodicalId":6349,"journal":{"name":"2010 International Conference on Mechanic Automation and Control Engineering","volume":"13 1","pages":"2858-2862"},"PeriodicalIF":0.0,"publicationDate":"2010-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77273419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Test of friction loss for curved prestressed tendons 弯曲预应力筋的摩擦损失试验
Pub Date : 2010-06-26 DOI: 10.1109/MACE.2010.5536083
M. Peng, Tianqing Yu
Prestressing design is more and more widely used in bridge structures, in which one of the very important issues is how to determine the prestressing loss. In comparison with the straight prestressed tendons, the friction loss between curved tendons and ducts accounts for a large proportion of all losses. The friction loss of varied curved configurations is tested and studied in this paper. The principle and procedure is introduced and the experimental results are analyzed. The loss value of tendons under each load level is obtained. Based on least square principle, the curvature friction coefficient and wobble friction coefficient are worked out according to the test data. The measured results are compared with theoretical values recommended in some Chinese and foreign codes. The conclusions would serve as a reference for similar engineering structures.
预应力设计在桥梁结构中的应用越来越广泛,其中一个非常重要的问题是如何确定预应力损失。与直预应力筋相比,弯曲预应力筋与管道之间的摩擦损失占所有损失的很大比例。本文对不同曲面结构的摩擦损失进行了测试和研究。介绍了该方法的原理和步骤,并对实验结果进行了分析。得到了各荷载水平下的筋损值。基于最小二乘原理,根据试验数据计算出了曲率摩擦系数和摆动摩擦系数。实测结果与国内外一些规范中推荐的理论值进行了比较。所得结论可为类似工程结构提供参考。
{"title":"Test of friction loss for curved prestressed tendons","authors":"M. Peng, Tianqing Yu","doi":"10.1109/MACE.2010.5536083","DOIUrl":"https://doi.org/10.1109/MACE.2010.5536083","url":null,"abstract":"Prestressing design is more and more widely used in bridge structures, in which one of the very important issues is how to determine the prestressing loss. In comparison with the straight prestressed tendons, the friction loss between curved tendons and ducts accounts for a large proportion of all losses. The friction loss of varied curved configurations is tested and studied in this paper. The principle and procedure is introduced and the experimental results are analyzed. The loss value of tendons under each load level is obtained. Based on least square principle, the curvature friction coefficient and wobble friction coefficient are worked out according to the test data. The measured results are compared with theoretical values recommended in some Chinese and foreign codes. The conclusions would serve as a reference for similar engineering structures.","PeriodicalId":6349,"journal":{"name":"2010 International Conference on Mechanic Automation and Control Engineering","volume":"268 1","pages":"1490-1492"},"PeriodicalIF":0.0,"publicationDate":"2010-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75925799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Performance evaluation of a refitted hydraulic press using for water hyacinth dewatering 水葫芦脱水用改进型液压机的性能评价
Pub Date : 2010-06-26 DOI: 10.1109/MACE.2010.5536859
Dayong Xu
This article describes the design and construction of a refitted hydraulic press used for water hyacinth dewatering. The performance under different pressures of the press was investigated. The press system mainly composed five parts: support frame, round press plates, cylindrical sieve vessel, collection bucket and hydraulic power system. When the pressure increased from 10 MPa to 35 MPa, the residues water content decreased from 87.6% to 81.3% and the fresh water hyacinth volume reductions rate rose from 35% to 77%, and the average WHPJ production was 0.32 kg per kg fresh water hyacinth. The physicochemical characteristics of WHPJ such as pH, EC, SS, COD, TN and TP all varied with the pressure increasing. When the pressure increased from 10 MPa to 20 MPa the content growth rate of per parameter was small, but the pressure continue to increase the content of all parameters are rapidly rising, pH and EC excepted, the WHPJ characteristics can be adjusted by different pressures. According to the experimental results, it may be inferred that this press was shown to be suitable for water hyacinth dewatering of having evident waste reduction and efficient of juice production.
本文介绍了水葫芦脱水改造液压机的设计与施工。研究了在不同压力下的性能。压榨系统主要由支撑架、圆形压榨板、圆筒筛容器、收集斗和液压动力系统五部分组成。当压力从10 MPa增加到35 MPa时,残渣含水量从87.6%下降到81.3%,水葫芦体积减量率从35%上升到77%,平均WHPJ产量为0.32 kg / kg水葫芦。WHPJ的理化特性如pH、EC、SS、COD、TN和TP均随压力的增加而变化。当压力从10 MPa增加到20 MPa时,各参数含量的增长速度较小,但随着压力的继续增加,除pH和EC外,各参数含量均迅速上升,不同压力可调节WHPJ特性。实验结果表明,该压榨机适用于水葫芦脱水,具有明显的减废效果和制汁效率。
{"title":"Performance evaluation of a refitted hydraulic press using for water hyacinth dewatering","authors":"Dayong Xu","doi":"10.1109/MACE.2010.5536859","DOIUrl":"https://doi.org/10.1109/MACE.2010.5536859","url":null,"abstract":"This article describes the design and construction of a refitted hydraulic press used for water hyacinth dewatering. The performance under different pressures of the press was investigated. The press system mainly composed five parts: support frame, round press plates, cylindrical sieve vessel, collection bucket and hydraulic power system. When the pressure increased from 10 MPa to 35 MPa, the residues water content decreased from 87.6% to 81.3% and the fresh water hyacinth volume reductions rate rose from 35% to 77%, and the average WHPJ production was 0.32 kg per kg fresh water hyacinth. The physicochemical characteristics of WHPJ such as pH, EC, SS, COD, TN and TP all varied with the pressure increasing. When the pressure increased from 10 MPa to 20 MPa the content growth rate of per parameter was small, but the pressure continue to increase the content of all parameters are rapidly rising, pH and EC excepted, the WHPJ characteristics can be adjusted by different pressures. According to the experimental results, it may be inferred that this press was shown to be suitable for water hyacinth dewatering of having evident waste reduction and efficient of juice production.","PeriodicalId":6349,"journal":{"name":"2010 International Conference on Mechanic Automation and Control Engineering","volume":"19 1","pages":"2614-2617"},"PeriodicalIF":0.0,"publicationDate":"2010-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75039665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research on sustainable development strategy and evaluation model of the of urban wastewater treatment system in China 中国城市污水处理系统可持续发展战略与评价模型研究
Pub Date : 2010-06-26 DOI: 10.1109/MACE.2010.5536175
Saili Yi
In this paper, based on the literature review and research to the large numbers of available data, the status in quo about the urban wastewater treatment technology in china was summarized and analyzed from the points of view of sustainable development for environment, technique and economy. According to the principles of the screening of sustainable development, an sustainable development system model of urban wastewater treatment was presented in this paper, some sustainable treatment strategies was discussed in four stages- source control, wastewater transportation system, wastewater treatment and reclaimed wastewater reused. Finally, an index system for the assessment of sustainability for urban drainage system is built up and a fuzzy synthetical assessment model was built as the assessment method.
本文通过文献综述和对大量现有数据的研究,从环境、技术和经济可持续发展的角度对中国城市污水处理技术的现状进行了总结和分析。根据可持续发展筛选原则,建立了城市污水处理的可持续发展系统模型,并从源头控制、污水输送系统、污水处理和中水回用四个阶段探讨了城市污水处理的可持续发展策略。最后,建立了城市排水系统可持续性评价指标体系,并建立了模糊综合评价模型作为评价方法。
{"title":"Research on sustainable development strategy and evaluation model of the of urban wastewater treatment system in China","authors":"Saili Yi","doi":"10.1109/MACE.2010.5536175","DOIUrl":"https://doi.org/10.1109/MACE.2010.5536175","url":null,"abstract":"In this paper, based on the literature review and research to the large numbers of available data, the status in quo about the urban wastewater treatment technology in china was summarized and analyzed from the points of view of sustainable development for environment, technique and economy. According to the principles of the screening of sustainable development, an sustainable development system model of urban wastewater treatment was presented in this paper, some sustainable treatment strategies was discussed in four stages- source control, wastewater transportation system, wastewater treatment and reclaimed wastewater reused. Finally, an index system for the assessment of sustainability for urban drainage system is built up and a fuzzy synthetical assessment model was built as the assessment method.","PeriodicalId":6349,"journal":{"name":"2010 International Conference on Mechanic Automation and Control Engineering","volume":"1 1","pages":"4918-4922"},"PeriodicalIF":0.0,"publicationDate":"2010-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76493732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Dynamic characteristics of soft clay under traffic load 交通荷载作用下软土动力特性研究
Pub Date : 2010-06-26 DOI: 10.1109/MACE.2010.5536727
Yong Zhang, Lingling Kong
To investigate the influence factors of the soil dynamic characteristics under traffic load, a series of undrained dynamic triaxial tests are conducted, at different cyclic stress level, cycle number and confining pressure. The research shows that while being subjected to dynamic loading, such as traffic load, the soil's stiffness softening is occurring more or less when the cycle number is increasing. There are three experimental types of saturated soft clay under dynamic loading with different cycle stress level, such as stable type, destructive type and critical type. The critical type of stress is called critical dynamic stress. There is little difference on numerical value between two critical dynamic stresses which identified by strain and pore pressure respectively. Meanwhile, it shows that dynamic shear modulus falls as dynamic strain increases, and the relationship between dynamic shear modulus and cycle number is influenced by cycle number. So when we design the foundation, dynamic shear modulus should be decided according to dynamic strain and cyclic number. Damping ratio increases as long as dynamic strain increases. The confining pressure has little influence on the relationship between dynamic shear modulus and cycle number.
为研究交通荷载作用下土体动力特性的影响因素,进行了不同循环应力水平、循环次数和围压下的不排水动三轴试验。研究表明,在交通荷载等动力荷载作用下,随着循环次数的增加,土体的刚度或多或少出现软化。不同循环应力水平动加载下的饱和软土试验类型分为稳定型、破坏型和临界型。临界应力类型称为临界动应力。以应变和孔隙压力分别识别的临界动应力数值差异不大。同时,动剪切模量随动应变的增大而减小,且动剪切模量与循环数的关系受循环数的影响。因此在基础设计时,应根据动应变和循环次数确定动剪切模量。阻尼比随动应变的增大而增大。围压对动剪模量与循环数的关系影响不大。
{"title":"Dynamic characteristics of soft clay under traffic load","authors":"Yong Zhang, Lingling Kong","doi":"10.1109/MACE.2010.5536727","DOIUrl":"https://doi.org/10.1109/MACE.2010.5536727","url":null,"abstract":"To investigate the influence factors of the soil dynamic characteristics under traffic load, a series of undrained dynamic triaxial tests are conducted, at different cyclic stress level, cycle number and confining pressure. The research shows that while being subjected to dynamic loading, such as traffic load, the soil's stiffness softening is occurring more or less when the cycle number is increasing. There are three experimental types of saturated soft clay under dynamic loading with different cycle stress level, such as stable type, destructive type and critical type. The critical type of stress is called critical dynamic stress. There is little difference on numerical value between two critical dynamic stresses which identified by strain and pore pressure respectively. Meanwhile, it shows that dynamic shear modulus falls as dynamic strain increases, and the relationship between dynamic shear modulus and cycle number is influenced by cycle number. So when we design the foundation, dynamic shear modulus should be decided according to dynamic strain and cyclic number. Damping ratio increases as long as dynamic strain increases. The confining pressure has little influence on the relationship between dynamic shear modulus and cycle number.","PeriodicalId":6349,"journal":{"name":"2010 International Conference on Mechanic Automation and Control Engineering","volume":"41 1","pages":"4498-4501"},"PeriodicalIF":0.0,"publicationDate":"2010-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76497166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Intergrated optimization design for ultra-precision active vibration isolation platform based on the genetic algorithm 基于遗传算法的超精密主动隔振平台集成优化设计
Pub Date : 2010-06-26 DOI: 10.1109/MACE.2010.5535585
Zhang Yi, Xia Min-min, Zhang Hu, Fang Zi-fan, Zhu Da-lin
This paper presents an approach to integrate structural and control parameters optimization for an active vibration isolation system based on the elitist strategy genetic algorithm. This method, which takes the total weighted root mean square of the acceleration of isolation platform, the dynamic deflection of isolation system and the dynamic displacement of the base as optimization performance indicators, combines mechanical structure design and LQG controller design for integrated optimization of active vibration isolation system. The theoretical analysis and simulation results demonstrate that the method can effectively improve the isolation effect of active vibration isolation system.
提出了一种基于精英策略遗传算法的主动隔振系统结构参数与控制参数集成优化方法。该方法以隔振平台加速度、隔振系统动态挠度和基座动态位移的总加权均方根为优化性能指标,将机械结构设计与LQG控制器设计相结合,对主动隔振系统进行综合优化。理论分析和仿真结果表明,该方法能有效提高主动隔振系统的隔振效果。
{"title":"Intergrated optimization design for ultra-precision active vibration isolation platform based on the genetic algorithm","authors":"Zhang Yi, Xia Min-min, Zhang Hu, Fang Zi-fan, Zhu Da-lin","doi":"10.1109/MACE.2010.5535585","DOIUrl":"https://doi.org/10.1109/MACE.2010.5535585","url":null,"abstract":"This paper presents an approach to integrate structural and control parameters optimization for an active vibration isolation system based on the elitist strategy genetic algorithm. This method, which takes the total weighted root mean square of the acceleration of isolation platform, the dynamic deflection of isolation system and the dynamic displacement of the base as optimization performance indicators, combines mechanical structure design and LQG controller design for integrated optimization of active vibration isolation system. The theoretical analysis and simulation results demonstrate that the method can effectively improve the isolation effect of active vibration isolation system.","PeriodicalId":6349,"journal":{"name":"2010 International Conference on Mechanic Automation and Control Engineering","volume":"45 1","pages":"3149-3152"},"PeriodicalIF":0.0,"publicationDate":"2010-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76576032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Prediction control research of cobalt lion concentration in Zinc hydrometallurgy based on NN and GM technique 基于神经网络和遗传算法的湿法炼锌钴离子浓度预测控制研究
Pub Date : 2010-06-26 DOI: 10.1109/MACE.2010.5535566
Yan Mi-ying, Gui Wei-hua, Yang Chun-hua
Considering the strong non-linearity and large time delay of purification in zinc hydrometallurgy in purification process, a prediction model of cobalt concentration combining neural network (NN) and grey model (GM) are proposed. In the key part II of the purification, because of the harmful impurities cobalt ion concentration can not be on-line measured, and the testing results is two hours later before the production situation, it is mainly through the production of excessive addition of antimony salts and zinc to remove cobalt ions. Under the premise of deeply analysis of the process II of product and purification technique and the relevant factors, a control method was brought forward in this article, which adopts the same dimension grey prediction method to forecast cobalt ion concentration, and then uses a neural network technique to compensate the error of grey forecast. In the end of the article, two simulated experiments of the neural network grey model (NN-GM) and the least square support vector machine (LS-SVM) were compared. The results of the simulation and production practice has proved that the NN-GM model can be so better to predict the cobalt ion concentration values, that played guiding role for the operation process in optimize the antimony salt and zinc addition.
针对湿法炼锌提纯过程中存在的强非线性和大时滞问题,提出了一种结合神经网络(NN)和灰色模型(GM)的钴浓度预测模型。在净化的关键部分II中,由于有害杂质钴离子浓度无法在线测量,且检测结果是生产前两小时后的情况,主要是通过过量添加锑盐和锌来去除钴离子。本文在深入分析生产工艺和提纯工艺及其相关因素的前提下,提出了一种控制方法,即采用同维灰色预测法对钴离子浓度进行预测,然后利用神经网络技术对灰色预测误差进行补偿。在文章的最后,对神经网络灰色模型(NN-GM)和最小二乘支持向量机(LS-SVM)的两个仿真实验进行了比较。仿真和生产实践结果表明,NN-GM模型能较好地预测钴离子浓度,对优化锑盐和锌的添加工艺起到了指导作用。
{"title":"Prediction control research of cobalt lion concentration in Zinc hydrometallurgy based on NN and GM technique","authors":"Yan Mi-ying, Gui Wei-hua, Yang Chun-hua","doi":"10.1109/MACE.2010.5535566","DOIUrl":"https://doi.org/10.1109/MACE.2010.5535566","url":null,"abstract":"Considering the strong non-linearity and large time delay of purification in zinc hydrometallurgy in purification process, a prediction model of cobalt concentration combining neural network (NN) and grey model (GM) are proposed. In the key part II of the purification, because of the harmful impurities cobalt ion concentration can not be on-line measured, and the testing results is two hours later before the production situation, it is mainly through the production of excessive addition of antimony salts and zinc to remove cobalt ions. Under the premise of deeply analysis of the process II of product and purification technique and the relevant factors, a control method was brought forward in this article, which adopts the same dimension grey prediction method to forecast cobalt ion concentration, and then uses a neural network technique to compensate the error of grey forecast. In the end of the article, two simulated experiments of the neural network grey model (NN-GM) and the least square support vector machine (LS-SVM) were compared. The results of the simulation and production practice has proved that the NN-GM model can be so better to predict the cobalt ion concentration values, that played guiding role for the operation process in optimize the antimony salt and zinc addition.","PeriodicalId":6349,"journal":{"name":"2010 International Conference on Mechanic Automation and Control Engineering","volume":"85 1","pages":"3802-3806"},"PeriodicalIF":0.0,"publicationDate":"2010-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77498756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
2010 International Conference on Mechanic Automation and Control Engineering
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1