电液伺服控制摩托车随机疲劳试验台的实验研究

分析了摩托车随机疲劳试验台的基本原理与结构特点,并针对其电液伺服系统建立了一种新的疲劳模拟时域控制方法,设计了多级递阶模糊控制器来控制试验台跟踪期望输入信号,以最终实现对电液伺服系统的实时控制.在试验台上进行了多种规格摩托车的振动试验,试验结果证明该试验台完全满足摩托车可靠性试验要求,为摩托车零部件及整车疲劳试验提供了新的方法.

Random Fatigue Testing for Motorcycles on Electro-Hydraulic Servo Test Rig

Analyzes the working principle and structural characteristics of the random fatigue test rig for motorcycles,then a new fatigue-simulated time domain control technique is proposed and put into operation for the electro-hydraulic servo system of the tester.A multi-level hierarchical fuzzy controller is thus designed to control the test rig to track expected input signals and,finally,implement the real-time control of the electro-hydraulic servo system.Vibration testings have been done on the tester for various motorcycles of different sizes,and the results showed that the test rig can fully meet the testing demands of the motorcycle's reliability,thus providing a new way to the fatigue testing for either the whole motorcycle or its parts.