The experimental system is build up in this dissertation , by which we proceed the experimental research aiming at two structure schemes which are electro - hydraulic load simulator controlled by single pressure servo valve control and loading platform controlled by pressure and flow servo valves separately 本文建立了减摇鳍电液负载仿真台的实验系统,并分别在单个压力伺服阀控制加载系统、压力伺服阀和流量伺服阀双阀控制加载实验系统进行了实验研究。
Through the model the inverse dynamic problem of stewart platform is solved and a foundation is made for stewart platform control used for 500m lt . meanwhile all the restrained forces acted at joints are found which provide analysis condition for the mechanism design . a simplified resultant force acted on the cabin by stewart platform is given which makes it possible to eliminate the dynamic coupling between the two subsystems by means of active vibration control 基于newton - euler方法,建立了充分考虑动平台惯性、支腿惯性、关节摩擦等因素的stewart平台控制动力学模型,解决了已知动平台运动规划,求关节驱动力的动力学逆问题,为准确实现lt500m原型stewart平台控制奠定了基础;解出了各关节处的约束反力,为平台机构设计提供了力分析条件;简化给出了平台对馈源舱的反作用力,使得采用振动主动控制技术消除两级子系统之间的动力耦合成为可能。
Usually , the pci protocol is very complex and uneasy to understand , so we adopt a pci bus interface chip - s5920 produced by amcc inc . the board has showed excellent performance in the practical applications such as the cloud platform controlling system , and gun regulating system etc . at the same time it only needs little alteration when used in other similar industrial controlling systems 采用了amcc公司推出的一种pci总线接口芯片s5920并用c + +语言实现了所有的功能。该板卡应用于云台控制系统以及后面承接的航空发动机油阀调控系统己取得很好效果,稍加改动即可应用于其他类似的工业控制领域。