Pub Date : 2018-01-01DOI: 10.12677/OJAV.2018.62007
杨 晓军
{"title":"Experimental and Numerical Identification of Wet Frequencies for Rectangular-Section Cantilever Beam in Water","authors":"杨 晓军","doi":"10.12677/OJAV.2018.62007","DOIUrl":"https://doi.org/10.12677/OJAV.2018.62007","url":null,"abstract":"","PeriodicalId":63563,"journal":{"name":"声学期刊(英文)","volume":"06 1","pages":"54-61"},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66178651","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}
Pub Date : 2018-01-01DOI: 10.12677/OJAV.2018.63010
刘 永春
{"title":"Study on the Active Control of Vertical Nonlinear Suspension System","authors":"刘 永春","doi":"10.12677/OJAV.2018.63010","DOIUrl":"https://doi.org/10.12677/OJAV.2018.63010","url":null,"abstract":"","PeriodicalId":63563,"journal":{"name":"声学期刊(英文)","volume":"51 1","pages":"79-87"},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66178400","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}
Pub Date : 2018-01-01DOI: 10.12677/OJAV.2018.63011
郑 伟光
{"title":"Study on Adaptive Control Algorithm of Ventilation Duct Noise Based on Micro-Perforated Pane","authors":"郑 伟光","doi":"10.12677/OJAV.2018.63011","DOIUrl":"https://doi.org/10.12677/OJAV.2018.63011","url":null,"abstract":"","PeriodicalId":63563,"journal":{"name":"声学期刊(英文)","volume":"06 1","pages":"88-98"},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66178452","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}
Pub Date : 2018-01-01DOI: 10.12677/ojav.2018.62008
刘 金通
{"title":"Acoustic Characteristics of Micro-Pressure Wave at the High Speed Railway Tunnel Exit","authors":"刘 金通","doi":"10.12677/ojav.2018.62008","DOIUrl":"https://doi.org/10.12677/ojav.2018.62008","url":null,"abstract":"","PeriodicalId":63563,"journal":{"name":"声学期刊(英文)","volume":"06 1","pages":"62-69"},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66178268","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}
Pub Date : 2018-01-01DOI: 10.12677/ojav.2018.62004
曹 俊灵
{"title":"Global Bifurcation and Chaos of Liquid Sloshing in Liquid-Filled System","authors":"曹 俊灵","doi":"10.12677/ojav.2018.62004","DOIUrl":"https://doi.org/10.12677/ojav.2018.62004","url":null,"abstract":"","PeriodicalId":63563,"journal":{"name":"声学期刊(英文)","volume":"06 1","pages":"29-35"},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66177999","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}
Pub Date : 2018-01-01DOI: 10.12677/ojav.2018.61002
和 禹含
{"title":"Damage Detection Method of Frame Structure Based on Singular Value Decomposition and Time Domain Sensitivity Analysis","authors":"和 禹含","doi":"10.12677/ojav.2018.61002","DOIUrl":"https://doi.org/10.12677/ojav.2018.61002","url":null,"abstract":"","PeriodicalId":63563,"journal":{"name":"声学期刊(英文)","volume":"95 1","pages":"8-15"},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66178249","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}
Pub Date : 2018-01-01DOI: 10.12677/OJAV.2018.62003
田 晓超
{"title":"Design and Experiment of Tensile Fatigue Test Device Driven by Piezoelectric Actuated Micro Load","authors":"田 晓超","doi":"10.12677/OJAV.2018.62003","DOIUrl":"https://doi.org/10.12677/OJAV.2018.62003","url":null,"abstract":"","PeriodicalId":63563,"journal":{"name":"声学期刊(英文)","volume":"06 1","pages":"17-28"},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66177858","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}
A Krylov space based time domain method for wave propagation problems is introduced. The proposed method uses the Arnoldi algorithm to obtain broad-band frequency domain solutions. This method is especially advantageous in cases where slow convergence is observed when using traditional time domain methods. The efficiency of the method is examined in several test cases to show its fast convergence in such problems.
{"title":"A Krylov Space-Based Finite Element Time Domain Method for Broadband Frequency Domain Solutions","authors":"Weiyang Lin","doi":"10.4236/OJA.2017.74009","DOIUrl":"https://doi.org/10.4236/OJA.2017.74009","url":null,"abstract":"A Krylov space based time domain method for wave propagation problems is introduced. The proposed method uses the Arnoldi algorithm to obtain broad-band frequency domain solutions. This method is especially advantageous in cases where slow convergence is observed when using traditional time domain methods. The efficiency of the method is examined in several test cases to show its fast convergence in such problems.","PeriodicalId":63563,"journal":{"name":"声学期刊(英文)","volume":"07 1","pages":"95-104"},"PeriodicalIF":0.0,"publicationDate":"2017-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41349463","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}
Pub Date : 2017-12-27DOI: 10.12677/OJAV.2017.54009
孙海荣, 于金朋, 苟国庆
高速列车运营经济性是高速铁路运营经济性和可持续发展的重要参考指标。而高速列车运行能耗是高速列车运营经济性的重要影响因素。在分析高速列车全寿命周期成本的基础上，分析了高速列车运营能耗构成及其各部分能耗占比，进一步提出了高速列车运行能耗模型，在此基础上分析了各部分能耗的占比和影响要素，并给出了高速列车节能降耗的提升方向，为高速列车节能减排提供借鉴。 The operating economy of high-speed train is an important reference index for high-speed railway operating economy and sustainable development. The running energy consumption of high-speed trains is an important factor affecting the economy of high-speed train operation. On the basis of analyzing the life cycle cost of high-speed train, this paper analyzes the composition of energy consumption of high-speed train operation and the proportion of its energy consumption, and further puts forward the model of high-speed train running energy consumption. On this basis, the paper analyzes the proportion and influence factors of the high-speed train, and gives the upgrading direction of energy saving and consumption reduction of high-speed train and provides references for energy saving and emission reduction for high-speed train.
高速列车运营经济性是高速铁路运营经济性和可持续发展的重要参考指标。而高速列车运行能耗是高速列车运营经济性的重要影响因素。在分析高速列车全寿命周期成本的基础上，分析了高速列车运营能耗构成及其各部分能耗占比，进一步提出了高速列车运行能耗模型，在此基础上分析了各部分能耗的占比和影响要素，并给出了高速列车节能降耗的提升方向，为高速列车节能减排提供借鉴。 The operating economy of high-speed train is an important reference index for high-speed railway operating economy and sustainable development. The running energy consumption of high-speed trains is an important factor affecting the economy of high-speed train operation. On the basis of analyzing the life cycle cost of high-speed train, this paper analyzes the composition of energy consumption of high-speed train operation and the proportion of its energy consumption, and further puts forward the model of high-speed train running energy consumption. On this basis, the paper analyzes the proportion and influence factors of the high-speed train, and gives the upgrading direction of energy saving and consumption reduction of high-speed train and provides references for energy saving and emission reduction for high-speed train.
{"title":"高速列车运行能耗分析 Analysis on the Energy Consumption of High-Speed Train","authors":"孙海荣, 于金朋, 苟国庆","doi":"10.12677/OJAV.2017.54009","DOIUrl":"https://doi.org/10.12677/OJAV.2017.54009","url":null,"abstract":"高速列车运营经济性是高速铁路运营经济性和可持续发展的重要参考指标。而高速列车运行能耗是高速列车运营经济性的重要影响因素。在分析高速列车全寿命周期成本的基础上，分析了高速列车运营能耗构成及其各部分能耗占比，进一步提出了高速列车运行能耗模型，在此基础上分析了各部分能耗的占比和影响要素，并给出了高速列车节能降耗的提升方向，为高速列车节能减排提供借鉴。 The operating economy of high-speed train is an important reference index for high-speed railway operating economy and sustainable development. The running energy consumption of high-speed trains is an important factor affecting the economy of high-speed train operation. On the basis of analyzing the life cycle cost of high-speed train, this paper analyzes the composition of energy consumption of high-speed train operation and the proportion of its energy consumption, and further puts forward the model of high-speed train running energy consumption. On this basis, the paper analyzes the proportion and influence factors of the high-speed train, and gives the upgrading direction of energy saving and consumption reduction of high-speed train and provides references for energy saving and emission reduction for high-speed train.","PeriodicalId":63563,"journal":{"name":"声学期刊(英文)","volume":"05 1","pages":"61-66"},"PeriodicalIF":0.0,"publicationDate":"2017-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48410909","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}
Pub Date : 2017-08-31DOI: 10.12677/OJAV.2017.53007
张月, 牛可心, 李惠彬
某轻型载货汽车方向盘在怠速工况下抖动严重，利用模态试验分析其怠速抖动原因，发现方向盘模态频率与发动机二阶点火频率接近，引起共振现象。为降低方向盘振动，结合有限元分析方法和灵敏度分析，调整方向盘结构和仪表台横梁管柱的厚度，对转向系统进行结构优化，从而改变方向盘的固有频率，远离发动机的二阶点火频率，减小共振。最后通过试验验证了改进措施的有效性。 The steering wheel of a light truck has a jitter problem in the idle condition. We used modal test to analyze the jitter reason under idle condition. It is found that the modal frequency of the steering wheel is close to the second order ignition frequency of the engine so the resonance of the steering wheel appears. In order to reduce the steering wheel vibration, we combined with the finite element analysis method and sensitivity analysis method. We adjusted the structure of the steering wheel and the thickness of the instrument panel beam to optimize the structure, thereby changing the natural frequency of the steering wheel. Measures works and the natural frequency was far from the second order ignition frequency of the engine. Finally, the effectiveness and rationality of the improvements were verified through tests.
某轻型载货汽车方向盘在怠速工况下抖动严重，利用模态试验分析其怠速抖动原因，发现方向盘模态频率与发动机二阶点火频率接近，引起共振现象。为降低方向盘振动，结合有限元分析方法和灵敏度分析，调整方向盘结构和仪表台横梁管柱的厚度，对转向系统进行结构优化，从而改变方向盘的固有频率，远离发动机的二阶点火频率，减小共振。最后通过试验验证了改进措施的有效性。 The steering wheel of a light truck has a jitter problem in the idle condition. We used modal test to analyze the jitter reason under idle condition. It is found that the modal frequency of the steering wheel is close to the second order ignition frequency of the engine so the resonance of the steering wheel appears. In order to reduce the steering wheel vibration, we combined with the finite element analysis method and sensitivity analysis method. We adjusted the structure of the steering wheel and the thickness of the instrument panel beam to optimize the structure, thereby changing the natural frequency of the steering wheel. Measures works and the natural frequency was far from the second order ignition frequency of the engine. Finally, the effectiveness and rationality of the improvements were verified through tests.
{"title":"基于灵敏度分析的某轻卡方向盘怠速抖动治理研究 Research on Idle Jitter Control of a Light Truck Steering Wheel Based on Sensitivity Analysis","authors":"张月, 牛可心, 李惠彬","doi":"10.12677/OJAV.2017.53007","DOIUrl":"https://doi.org/10.12677/OJAV.2017.53007","url":null,"abstract":"某轻型载货汽车方向盘在怠速工况下抖动严重，利用模态试验分析其怠速抖动原因，发现方向盘模态频率与发动机二阶点火频率接近，引起共振现象。为降低方向盘振动，结合有限元分析方法和灵敏度分析，调整方向盘结构和仪表台横梁管柱的厚度，对转向系统进行结构优化，从而改变方向盘的固有频率，远离发动机的二阶点火频率，减小共振。最后通过试验验证了改进措施的有效性。 The steering wheel of a light truck has a jitter problem in the idle condition. We used modal test to analyze the jitter reason under idle condition. It is found that the modal frequency of the steering wheel is close to the second order ignition frequency of the engine so the resonance of the steering wheel appears. In order to reduce the steering wheel vibration, we combined with the finite element analysis method and sensitivity analysis method. We adjusted the structure of the steering wheel and the thickness of the instrument panel beam to optimize the structure, thereby changing the natural frequency of the steering wheel. Measures works and the natural frequency was far from the second order ignition frequency of the engine. Finally, the effectiveness and rationality of the improvements were verified through tests.","PeriodicalId":63563,"journal":{"name":"声学期刊(英文)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2017-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47149361","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}
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