联调机构虚拟样机运动学动力学仿真

采用UG与ADAMS软件建立了某型燃气轮机压气机可调静叶联调机构系统的完整数字化虚拟样机,在此基础上对该联调机构系统进行了动态特性仿真分析,得到了可调静叶联调机构的调节变化规律,分析了联调机构的仿真结果与机构设计目标的对比情况,验证了模型的可行性。并对仿真角度规律结果与CAD计算法结果进行了比较,证明了ADAMS仿真是1种行之有效的方法,且比物理仿真有很强的经济性优势。通过仿真得到了各级拉杆的受力情况,为进一步有限元结构分析以及结构系统优化奠定了基础。

Kinematics and Dynamics Simulation of Jointly Adjusting Mechanism Based on Virtual Prototype Technology

The digital virtual prototype of compressor jointly adjusting mechanism for a gas turbine was built by UG and ADAMS software. The changing law of variable stator vanes for the jointly adjusting mechanism was obtained by its dynamics characteristics analysis.The comparison between simulation results and design aims for the jointly adjusting mechanism was analyzed, and the feasiblity of its model was verified. The ADAMS is an effective method and has best economical advantage by the comparison between the simulation rules results and CAD calculation results and the ADAMS has better economics than the physical simulation method. The force parameters acted on the tension bars are obtained by simulation, which provide the foundation for further finite element structural analysis and optimization of structural system.