液压摆振试验机伺服控制系统快速半实物仿真
首发时间:2010-04-09
摘要:针对正在研制的用于弹性轴类零件试验的30000NM扭矩液压伺服摆振试验机,其传动系统核心部件--力(运动)转换机构的内部建模较为复杂,被试验零件特性不确定且变化范围较大,致使系统精确的数学模型无法建立,从而为选择合适控制算法带来困难。为解决此问题,保证实际设计过程中控制算法的有效性,采用参数自整定模糊PID(Fuzzy-PID)控制算法。利用Simulink/Real-Time Windows Target工具箱,直接在试验机物理硬件上建立了基于现场仪器的实时数字仿真模型,通过调整试验过程中的相关参数,方便而快速得到试验结果。实现了对液压伺服摆振试验机的快速半实物仿真,并快速验证了Fuzzy-PID算法的有效性,提高控制系统的设计效率。
关键词: 液压摆振试验机 半实物仿真 Real-Time Windows Target 参数自整定模糊PID
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Hydraulic servo-swing vibration testing machine using quickly hardware-in-the-loop simulation
Abstract:To test the torsional dynamic characteristics of the flexible shaft parts, a hydraulic servo-swing vibration testing machine whose maximum out-torque is 30000NM was self-developed. The core component of its transmission system is force (motion) transfer mechanism whose mathematical model is more complicated. When flexible shaft parts were tested, the load characteristics were changing uncertainty in the large scale, the exact mathematical model of the system can not be established and the appropriate control algorithms for this system were difficult to design. To solve this problem to ensure the actual design of the control algorithm, the parameters self-tuning fuzzy PID (Fuzzy-PID) control algorithm was designed for this system. MATLAB has a Simulink/Real-Time Windows Target toolbox which can be directly used in the test machine based on the physical hardware. Then the test results could be obtained easily and quickly by our right to change the relevant parameters of the control algorithm. Hydraulic servo-swing vibration testing machine’s quickly hardware-in-the-loop simulation was finally achieved to verify the effectiveness of the Fuzzy-PID algorithm and improve the efficiency of control system’s design.
Keywords: hydraulic swing vibration testing machine hardware-in-the-loop simulation Real-Time Windows Target parameters self-tuning fuzzy PID
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No.4177152347612708****
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