Steering Gear - Base Power Model And The Dynamic Substructure Analysis

Along with the modern technology development by leaps and bounds,the system of structure becomes more and more huge, Increasingly complex and often works in the fast and accurate analysis, calculation and prediction of large complex structures dynamic characteristics. Dynamic substructure method for large complex dynamic structural analysis of the system effective way, with the development of computer technology, the method has great development. Has now become a large and complex structure of a conventional technology, have already been included in many large-scale structural analysis program, and works in a certain application.In this paper, the steering - the base of the structure and dynamics of modeling methods, the main contents include the following aspects.First, consider steering dock directly connected using fixed interface dynamic substructure method of steering - Base system modeling, and dynamic substructure method obtained a fixed frequency, modal and the finite element method and the results obtained comparison.Second, consider the base between the linear actuator spring, a sub-structure method of steering.Base system modeling, with ansys procedures and the preparation of the system were obtained dynamic response, the certification of the effectiveness of procedures, and non - linear analysis provides a useful reference.Third, consider steering - connecting part of the base nonlinear rubber, and use of the dynamic model has been established for solving nonlinear actuator by the existence of the base system dynamic response. Analysis of such problems often used numerical methods, the paper through the Runge Kutta method, the calculation will not only save time, and high precision.Forth, the base calculation results and comparing experimental results. Including the role and impact of static load both cases.