【摘要】 针对含间隙碰撞振动系统由于系统参数的变化,发生分岔和混沌这一实际情况,提出了系统参数依据系统输出的变化自动调节连续反馈控制的策略。给出了参数自调节的控制律,选取适当的控制强度向量,混沌运动可被引导到稳定的目标周期轨道。对一两自由度含间隙碰撞振动系统进行数值模拟,验证了这一策略的有效性。更多还原

【Abstract】 Parameters adjustment and continuous feedback control strategy are studied,according to output variation of a vibro-impact system with clearance.The control law of parameters adjustment is given.The chaotic motion of the system can be directed into the stable objective period motion after a proper control strength vector is elected.This strategy is applied to a two-degree-freedom vibro-impact system.By numerical simulation,the effectiveness of the method is demonstrated.更多还原