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2017 International Conference on Mechanical, System and Control Engineering (ICMSC)最新文献

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Method of estimation algorithms synthesis of dynamic processes with construction of the reference trajectory in transients disturbances 动态过程的估计算法与瞬态扰动下参考轨迹的构造
Pub Date : 2017-05-01 DOI: 10.1109/ICMSC.2017.7959503
A. Kostoglotov, Igor Deryabkin, D. Andrashitov, S. Lazarenko, A. Kuznetcov
The use of the combined maximum principle provides a constructive solution to the problem of tracking the maneuvering aircraft in the form of the inverse dynamics problem. In the article based on this approach the effective tracking filter is developed. It is based on the combined use of techniques for construction the synthesis function and the approach, which consists in considering the unknown forces to be determined, as a mixture of disturbing and control actions. The efficiency is understood in the sense of high precision and stability of the estimation algorithms, and a comparatively small computational complexity.
组合极大值原理的应用为逆动力学形式的机动飞行器跟踪问题提供了建设性的解决方案。本文在此基础上研制了有效的跟踪滤波器。它是基于综合功能和方法的综合使用技术,其中包括考虑未知的力量被确定,作为干扰和控制行动的混合物。效率的意义在于估计算法的高精度和稳定性,以及相对较小的计算复杂度。
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引用次数: 1
Assembly feature data instance modeling: Prototype implementation and outputs 装配特性数据实例建模:原型实现和输出
Pub Date : 2017-05-01 DOI: 10.1109/ICMSC.2017.7959498
A. Maffei, M. Onori, M. R. Khabbazi, J. Wikander, Ellen Bergseth
This paper introduces the assembly feature data schema instance modeling to pre-examine the schema functionality and output-as the preliminary step for data modeling. In order to link assembly with product design, it is essential to determine which entities of product design are involved at the automated assembly planning and operations. It is possible to assign meaningful attributes (assembly features) to the part model entities in a systematic and structured way. Using object-oriented design, the assembly feature data structure and its relationships are modeled. As a part of the research on product and assembly system data integration within the evolvable production system platform, the instance models for proposed assembly feature data structure provide a deeper understanding and error reduction that might possibly occur at the development of the database. Moreover through instance modeling, the assembly feature data query output format from the database prototype is simulated. An industrial assembly model example with its 3DPart models is chosen to demonstrate the realized assembly feature data set with string data type. The models support the desired simplicity at the database prototype implementation. The output format envisions the interoperability factor between product models and the assembly planning systems.
本文介绍了汇编特性数据模式实例建模,以预先检查模式功能和输出,作为数据建模的第一步。为了将装配与产品设计联系起来,确定哪些产品设计实体参与自动化装配规划和操作是至关重要的。以系统化和结构化的方式为零件模型实体分配有意义的属性(装配特征)是可能的。采用面向对象设计,对装配特征数据结构及其相互关系进行建模。作为可进化生产系统平台中产品与装配系统数据集成研究的一部分,所提出的装配特征数据结构的实例模型提供了对数据库开发过程中可能出现的错误的更深入的理解和减少。通过实例建模,模拟了数据库原型的装配特征数据查询输出格式。选择一个工业装配模型实例及其3DPart模型来演示所实现的具有字符串数据类型的装配特征数据集。这些模型支持数据库原型实现所需的简单性。输出格式设想了产品模型和装配规划系统之间的互操作性因素。
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引用次数: 2
Adaptive observers for linear time-varying dynamic objects 线性时变动态对象的自适应观测器
N. Karabutov
The method of construction adaptive observers (AO) time-varying linear dynamic objects at non-fulfillment of a condition an excitation constancy (EC) is proposed. Synthesis of the adaptive observer is given as the solution of two tasks. The solution first a problem is a choice of the constant matrix decreasing the effect of EC condition. The solution of the second problem gives a method of synthesis adaptive multiplicative algorithms in the presence of the obtained restrictions. Procedures of an estimation uncertainty in an object are proposed.
提出了在不满足激励常数条件下构造时变线性动态对象的自适应观测器的方法。将自适应观测器的综合作为两个任务的求解。第一个问题的解决方法是选择常数矩阵来减小EC条件的影响。第二问题的解给出了在给定约束条件下的一种综合自适应乘法算法。给出了物体不确定度的估计方法。
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引用次数: 3
Adaptive nonlinear control of the flyback switch mode power supplies 反激开关电源的自适应非线性控制
Pub Date : 2017-05-01 DOI: 10.1109/ICMSC.2017.7959508
M. Salimi, M. Hamedi
Modern control approaches are completely studied in standard DC-DC buck and boost converters. However, industrial switching power supplies haven't been investigated precisely using nonlinear control systems. This issue is related to more complex state-space model of these converters. In this paper, adaptive nonlinear control of isolated flyback switching power supplies is studied using Lyapunov stability analysis. In spite of large variations in load and line, proposed closed-loop system is able to stabilize and regulate output state variable of the flyback converter in different operational conditions without steady-state error. Considering presence of Right Half Plan Zero (RHPZ) in transfer function of the isolated flyback switching power supply, proposed controller employs the double-loop cascaded structure which includes a separate voltage loop to improve steady-state and dynamic responses. Estimated values of the system uncertain parameters are employed for implementation of the controller and hence fast dynamic response can be obtained during system startup and parameters changes. Finally designed isolated flyback chopper is simulated in MATLAB/Simulink in different operating points to investigate accuracy of the proposed controller.
现代控制方法在标准DC-DC降压和升压变换器中进行了全面研究。然而,工业开关电源还没有使用非线性控制系统进行精确的研究。这个问题与这些转换器的更复杂的状态空间模型有关。本文利用李雅普诺夫稳定性分析方法研究了隔离反激开关电源的自适应非线性控制。在负载和线路变化较大的情况下,闭环系统能够稳定和调节反激变换器在不同运行条件下的输出状态变量,无稳态误差。考虑到隔离反激开关电源传递函数中存在右半计划零(RHPZ),该控制器采用双环级联结构,其中包含一个独立的电压环,以改善稳态和动态响应。采用系统不确定参数的估计值来实现控制器,从而在系统启动和参数变化过程中获得快速的动态响应。最后在MATLAB/Simulink中对所设计的隔离反激斩波器进行了不同工作点的仿真,验证了所设计控制器的精度。
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引用次数: 5
Materials and technologies for pulsative Russian artificial heart ventricle manufacturing 脉动式俄罗斯人工心脏心室制造材料与技术
Pub Date : 2017-05-01 DOI: 10.1109/ICMSC.2017.7959435
L. Belyaev, A. Zhdanov, V. Morozov
The use of the implantable left ventricle assist device (LVAD) and total artificial heart (TAH) systems is one of the most widespread methods of heart failure treatment. In Russia, the pulsative type systems have got the biggest distribution in clinical practice. During the design of the specified systems complex technical challenges were solved, some of them were the selection of the materials and the manufacturing technologies of artificial heart ventricle. The objective of this article is the description of the applied materials to produce artificial heart ventricles of the Russian pulsative type LVAD and TAH systems, also the review and the critical analysis of possible technologies for their production. Based on the analysis of features of manufacturing technologies and medical-technical requirements to an artificial heart ventricle, manufacturing technologies of components of artificial heart ventricle from the Russian material "Vitur" are proposed. The stage of technological preparation of production is realized with application of CADCAMCAE-systems. The design results of industrial equipment for production of an artificial heart ventricle and the samples of the obtained products, which have been successfully tested under laboratory-bench conditions as part of the pulsative type LVAD and TAH systems with a pneumatic and electromechanical drive, are presented.
使用植入式左心室辅助装置(LVAD)和全人工心脏(TAH)系统是治疗心力衰竭最广泛的方法之一。在俄罗斯,脉动型系统在临床应用中分布最广。在特定系统的设计过程中,解决了复杂的技术难题,其中包括人工心室材料的选择和制造技术。本文的目的是描述用于制造俄罗斯脉动型LVAD和TAH系统的人工心室的应用材料,并对其生产的可能技术进行综述和批判性分析。在分析人造心脏心室制造技术特点和医疗技术要求的基础上,提出了俄罗斯“Vitur”材料人造心脏心室部件的制造技术。应用CADCAM cae系统,实现了生产工艺准备阶段。本文介绍了人工心脏心室工业设备的设计结果和产品样品,并在试验台条件下作为脉动型LVAD和TAH系统的一部分进行了成功的气动和机电驱动测试。
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引用次数: 6
Research on modified cavitation model for self-excited oscillation pulsed jet nozzle 自激振荡脉冲射流喷嘴改进空化模型研究
Pub Date : 2017-05-01 DOI: 10.1109/ICMSC.2017.7959449
Zhaohui Wang, Si Chen, Xiaogang Deng
Based on the mechanism of the cavitation effect in the self-excited oscillation pulsed jet nozzle, a modified cavitation model is proposed for improving the precision of the simulation, which considers the influence of Reynolds shear stress, the viscous shear stress and the turbulent pressure fluctuations existed in the shear layer on the vapor pressure. The modified cavitation model is hooked in the Fluent through the user defined function (UDF) to define the vapor pressure property which plays a role of criterion for cavitation. The fluctuation, frequency and magnitude distribution of the velocity at the outlet of the nozzle are analyzed and compared with the corresponding results obtained by using the original cavitation model. It is observed that the results obtained by the modified model are more consistent with the actual working situation of the nozzle. Finally, the effect of the inlet pressure on the occurrence of the cavitaion is investigated for exploring the relationship of the cavitation chance and the factors considered in the modified cavitation.
根据自激振荡脉冲射流喷嘴内空化效应的机理,提出了一种改进的空化模型,该模型考虑了剪切层中存在的雷诺剪切应力、粘性剪切应力和湍流压力波动对蒸汽压的影响,以提高仿真精度。将修正后的空化模型通过用户自定义函数(UDF)钩入Fluent中,定义汽压特性,汽压特性起到空化判据的作用。分析了喷嘴出口处速度的波动、频率和幅度分布,并与原空化模型的计算结果进行了比较。结果表明,修正后的模型计算结果更符合喷管的实际工作情况。最后,研究了进口压力对空化发生的影响,探讨了空化发生几率与改进空化所考虑的因素之间的关系。
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引用次数: 4
Second-order sliding mode control design and experimental application to a servo motor 伺服电机二阶滑模控制设计及实验应用
Pub Date : 2017-05-01 DOI: 10.1109/ICMSC.2017.7959459
M. Aydin, Ramazan Coban
In this study, first-order and second-order sliding mode speed controller for the Precision Modular Servo (PMS) setup produced by Feedback Instruments is proposed. The second-order sliding mode controller which permits decimate of the chattering phenomena is designed to control the real time speed of this electromechanical system. The Lyapunov stability theorem is used to confirm the stability of the system. And first-order and second-order sliding mode speed controllers are compared with each other. Experimental results are compared under condition of the same control strategy. The experimental results confirm that the offered super-twisting algorithm sliding mode controller eliminates the chattering while preserving the robustness of the control.
本文提出了一阶和二阶滑模速度控制器,用于由Feedback Instruments公司生产的精密模块化伺服(PMS)装置。设计了二阶滑模控制器来控制该机电系统的实时速度,该控制器可以消除抖振现象。利用李雅普诺夫稳定性定理来确定系统的稳定性。并对一阶和二阶滑模速度控制器进行了比较。在相同控制策略的条件下,对实验结果进行了比较。实验结果表明,所提出的超扭转算法滑模控制器在保持控制鲁棒性的同时消除了抖振。
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引用次数: 2
Optimization of working process parameters of small-scale turbojet for unmanned aircraft 无人机小型涡喷发动机工作工艺参数优化
Pub Date : 2017-05-01 DOI: 10.1109/ICMSC.2017.7959456
V. Kuz'michev, A. Tkachenko, E. P. Filinov, I. Krupenich, Yaroslav A. Ostapyuk
This article describes the results of optimization of the working process parameters (overall pressure ratio and turbine inlet temperature) of small-scale turbojet for cruise missiles and target airplanes. The influence of engine scale factor upon the efficiency of turbomachines, as well as the principal operational constraints were taken into account during the multi-criteria optimization. Specific fuel consumption and the total mass of engine and required fuel were selected as the optimization criteria. Optimal regions of the working process parameters were identified for the turbojet engines of thrust ranging from 0.1 kN to 2 kN. The results show that different types of turbomachinery (e.g. axial vs. centrifugal compressor) have substantially different optimal regions, thus the stage of optimization of working process parameters for the small-scale engines could not be implemented independently, unlike the full-sized engines. According to results, the optimal values of working process parameters decrease as the engine scale factor decreases, and the optimal regions shrink too. The results presented in this paper also include the most efficient values of the working process parameters and the rational types of turbomachines for various thrust levels and aircraft missions.
本文介绍了用于巡航导弹和靶机的小型涡喷发动机工作过程参数(总压比和涡轮入口温度)的优化结果。在多准则优化中,考虑了发动机尺度因子对涡轮效率的影响以及主要运行约束条件。选取比油耗、发动机总质量和所需燃油量作为优化准则。针对推力为0.1 kN ~ 2 kN的涡喷发动机,确定了工作过程参数的最优区域。结果表明,不同类型的涡轮机械(如轴向与离心式压气机)具有明显不同的最优区域,因此与大型发动机不同,小型发动机的工作过程参数优化阶段无法独立进行。结果表明,工作工艺参数的最优值随着发动机尺度因子的减小而减小,最优区域也随之缩小。本文的结果还包括工作过程参数的最有效值,以及各种推力水平和飞机任务下涡轮的合理类型。
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引用次数: 5
Development of ocean wave energy converter for gulf of Thailand 泰国湾海浪能转换器的研制
Pub Date : 2017-05-01 DOI: 10.1109/ICMSC.2017.7959488
D. Phaoharuhansa
This paper investigates on a development of free floating point absorber type of ocean wave energy converter (OWEC) for the gulf of Thailand. The point absorber is designed based on a double mass-spring system. The electric generators are installed in the buoy body and they will slide on a column as harmonic motion. The point absorber is demonstrated in open water channel with wave input. The amplitude and the frequency of the wave are varied, and then the electric power output and the motion of the generators are measured during the wave input. The experiment result presents the relationship between the electricity and stiffness of springs. The peak power output is 1,185 mW that the wave's amplitude is 0.05 m, the frequency is 2 Π rad/s, and the stiffness of the spring is 285 N.m. Thus, the peak power output is approximately 14,000 mW for wave's amplitude and wave's frequency in the gulf of Thailand.
本文研究了一种用于泰国湾的自由浮点吸收型海浪能转换器(OWEC)的开发。点减振器是基于双质量-弹簧系统设计的。发电机安装在浮标体上,它们在一根柱子上作谐波运动滑动。在有波浪输入的明渠中,证明了点吸收体的存在。改变波的振幅和频率,然后测量波输入期间的输出功率和发电机的运动。实验结果显示了弹簧的电性与刚度之间的关系。当波浪幅值为0.05 m,频率为2 Π rad/s,弹簧刚度为285 N.m时,输出峰值功率为1185 mW。因此,在泰国湾,波浪幅值和波浪频率的输出峰值功率约为14000 mW。
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引用次数: 1
A stealthy route planning algorithm for the fourth generation fighters 第四代战斗机隐身航路规划算法
Pub Date : 2017-05-01 DOI: 10.1109/ICMSC.2017.7959494
Rong Yang, Yong Ma, Zhangzhi Tao, Rong Yang
During traditional route planning, the fighter is always seen as a point without considering the effect flying attitude, which results in the result of route planning is often rough and unusable. Since flying attitude of the fourth generation fighter affects its stealth heavily, this paper considers the effect of the flying attitude of the fourth generation fighter to route planning, and supposes that radar threaten can be avoided (when maximal probability detected by radar is less than 20%). Based on the above conditions, this paper gives stealthy route planning algorithm for the fourth generation fighter. Simulation results show the algorithm is reasonable, effective and usable.
在传统的航路规划中,战斗机总是被视为一个点,而不考虑飞行姿态的影响,这导致航路规划的结果往往是粗糙的和不可用的。由于第四代战斗机的飞行姿态对其隐身性影响较大,本文考虑了第四代战斗机的飞行姿态对航路规划的影响,并假设雷达威胁是可以避免的(当雷达探测到的最大概率小于20%时)。基于上述条件,本文给出了第四代战斗机隐身航路规划算法。仿真结果表明了该算法的合理性、有效性和实用性。
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引用次数: 0
期刊
2017 International Conference on Mechanical, System and Control Engineering (ICMSC)
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