中文摘要：

借助于功率键合图技术建立支架立柱用安全阀的动态数学模型，给出必要的约束条件，在SIMU-LINK环境下实现其动态特性的数字仿真，并确定对安全阀动态特性影响较大的参数，在仿真环境下实现仿真与优化有机结合，得到使安全阀动态特性稳定的优化参数组合。

英文摘要：

A dynamic mathematics model of column＇s relief valve is developed by means of power bond graph, necessary constraint condition is confined, on the SIMULINK environment, realize the dynamical eharacteristics＇s digital simulation. The parameters affected the relief valve is confirmed, the simulation and optimization are combined by means of simulation environment, and the optimization parameters combination of relief valve is found.