论文部分内容阅读
AMT执行机构的振动疲劳可靠性是AMT最重要的性能之一,为对AMT执行机构的振动疲劳可靠性进行准确高效的分析和评价,提出了基于时频域误差加权远程参数方阵控制(RPC)的AMT执行机构多轴向多激励道路模拟试验方法。针对轿车AMT建立了其道路载荷谱采集方法,在东风汽车试验场采集了AMT及其执行机构实际道路行驶振动载荷谱,并对载荷谱进行了预处理和重复性检验,获取了AMT执行机构室内道路模拟试验期望响应信号。针对AMT执行机构实际道路行驶时的振动受载特征,设计开发了AMT执行机构多轴道路模拟试验台,结合采集的实际道路行驶载荷谱和开发的AMT执行机构多轴道路模拟试验台,采用时域和频域误差加权系数均为0.5的远程参数方阵控制(RPC)载荷谱模拟迭代方法在室内准确高效地再现了AMT执行机构实际行驶载荷谱,从而建立了AMT执行机构多轴向多激励道路模拟试验方法,为室内准确高效考核轿车AMT执行机构振动疲劳可靠性提供了一种行之有效的手段和方法。
Vibration fatigue reliability of AMT actuator is one of the most important performance of AMT. In order to analyze and evaluate the vibration fatigue reliability of AMT actuator accurately and efficiently, a time-frequency domain error-weighted remote parameter square matrix control (RPC ) AMT actuator multi-axial multi-excitation road simulation test method. The road load spectrum acquisition method for AMT was established. The vibration load spectrum of AMT and its implementing agencies was collected at Dongfeng Motor Test Station. The load spectra were preprocessed and repeatability tested. AMT actuator indoor Road simulation tests expect responses. In view of the characteristics of vibration load of AMT actuator when driving on the actual road, AMT actuator multi-axle road simulator is designed and developed. Combined with the actual load spectrum of the road and AMT actuator multi-axle road simulator, The remote parametric square matrix control (RPC) load spectrum simulation iterative method with 0.5 and weighted error coefficients in the domain and frequency domain of 0.5 was used to reproduce the actual traveling load spectrum of AMT actuator accurately and efficiently in the laboratory. The multi-axial multi-excitation Road simulation test method provides an effective means and method for the indoor accurate and efficient assessment of the vibration fatigue reliability of the AMT actuator.