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在振动离心复合环境试验系统中,当振动台动圈受离心力影响偏离原来的平衡工作位置时,将会影响振动台的正常工作。为了消除这种影响,本文提出了一种使用空气弹簧来抵消离心力影响的动态补偿方法。为了实现这种方法,设计了相应的气压伺服系统,进行了具有计算机控制的气压伺服系统原理性仿真实验。实验结果表明这种气压伺服系统具有良好的跟踪控制性能,可以满足动态补偿离心力对振动台动圈影响的要求。
In the vibration centrifugal composite environmental testing system, when the vibration of the moving coil by the centrifugal force deviate from the original balance of working position, it will affect the normal operation of the vibration table. In order to eliminate this effect, this paper presents a dynamic compensation method using air springs to counteract the influence of centrifugal force. In order to realize this kind of method, the corresponding air pressure servo system is designed and the simulation experiment of air pressure servo system with computer control is carried out. Experimental results show that the pneumatic servo system has a good tracking control performance, which can meet the requirements of dynamically compensating the influence of the centrifugal force on the moving coil of the vibrating table.