Stirling Transmission Elastic Dynamic Analysis And Visualization Applications

In this thesis, the method of the Assur Group theory and Kineto-Elasto Dynamics(KED) are applied to conduct the theoretical analysis deeply and to carry out a great deal ofnumerical calculation for the kinematics and dynamics properties of the transmissionmechanism in a Stirling engine. Moreover, scientific visualization post-processing methodis used in analyzing the stress. The main work includes:The kinematic properties of this transmission mechanism are researched deeply usingthe method of the Assur Group theory. The displacement, velocity and acceleration of eachjoint point of this mechanism in a motion period are put forward. In addition, their curvesof the relevant points are plotted.The mechanism is divided into finite elements and researched by the KED method.Then kinematic differential equations are established for each element and thirtygeneralized coordinates are selected to analyze the dynamic properties of the mechanism.The general kinematic differential equations are built through assembling all the elements.A closed numerical method based on the mode superposition principle is employed tosolve the equations. The elastic vibration curves of generalized coordinates in a motionperiod are obtained, the dynamic stresses in the links are calculated.Scientific visualization technology in the Finite Element Method and its realization arediscussed, application of color expression, the usual means in visualization, is researchedsufficiently. On the basis of them a linear chromatic color scale is established and appliedin thc stress expression of the elastic linkage mechanism. The results of the application arefavorable.The computer software, with a good interface, for the kinematic and dynamics analysissimulations is developed.