The structural analysis based on modern design method

Our traditional design is mainly based on producing experiences according to mechanical and mathematical formulas, diagrams, manuals and so on. Therefore, the finished product is functional but long design period and high cost are required. Nowadays, various modern design methods are more and more applied. The methods help to avoid aimless and random of the empirical design, to increase design scientificity, to bring down development cost, to shorten developing period and to improve product´s quality. This paper presents based on the modern design methods of finite element method and virtual prototype technology how to build parameterized three-dimensional material model of mechanical system by means of three-dimensional modeling software, UG, how to apply ADAMS, a dynamics virtual prototype software of mechanical system, to build rigid body model, how to establish Model Neutral File of flexible body components by means of finite element method software, ANSYS, and how to build flexible body model by means of ADAMS. It also presents when force and constraint are applied to each component, modal analysis of multi-body system dynamics three-dimensional visible intensity and vibration is undertaken and modal mode and frequency are inspected. This paper researches the initial attempt of applying advanced design, analysis and simulation techniques in design of ships crane. It also offers some feasible experiences and methods for the virtual design, dynamic design and structure virtual analysis of ships crane.