CAJ | 학술논문

针对液压激振系统在高频段控制效果差的问题，提出了一种位移加速度混合控制策略，控制算法中将位移、加速度控制相结合，低频以位移控制为主、高频以加速度控制为主，既保证了控制稳定性，又改善了液压激振系统高频特性以及加速度波形失真度。通过某型液压运输试验台进行验证，采用常规伺服控制的随机振动试验严重超差，而采用混合控制方式则能获得了良好的控制效果。试验结果表明混合控制策略能够对液压激振系统高频段起明显改善作用，并且该算法简单易于实现，且控制稳定。
침대액압격진계통재고빈단공제효과차적문제，제출료일충위이가속도혼합공제책략，공제산법중장위이、가속도공제상결합，저빈이위이공제위주、고빈이가속도공제위주，기보증료공제은정성，우개선료액압격진계통고빈특성이급가속도파형실진도。통과모형액압운수시험태진행험증，채용상규사복공제적수궤진동시험엄중초차，이채용혼합공제방식칙능획득료량호적공제효과。시험결과표명혼합공제책략능구대액압격진계통고빈단기명현개선작용，병차해산법간단역우실현，차공제은정。
Aimed at the problem of poor control effect in the high?frequency about the hydraulic excitation system, a displacement and acceleration hybrid control stragety was proposed. In the control algorithm, the displacement and acceleration control were com?bined with the low?frequency displacement control?oriented and high?frequency acceleration control?oriented. Not only the stability con?trol was ensured, but also the high?frequency characteristics of the hydraulic excitation system and the acceleration waveform distortion were improved. Through a hydraulic transportation test system, using a random vibration test, the traditional servo control was very poor, while the hydrid control method was able to get a satisfied control effect. The test results show that the control stragety is satisfying and improved in the high?frequency. In the meantime, the algorithm is simple and easy to implement, and with control stability.