Based On The Virtual Prototype Of A V16 Diesel Engine Shafting Dynamics Simulation Analysis

The crankshaft is the most important and one of the worst parts of the workenvironment in the engine, which bear complex, alternating the cylinder pressure and inertiaforce is the key and difficult points of the engine design. The crankshaft of the simplificationof the traditional research methods is difficult to meet the actual needs, making accurateanalysis of the crankshaft dynamic response of the problem is more likely to due to the rapiddevelopment of virtual prototyping technology and finite element method.This paper discusses the virtual prototyping technology to study the dynamicperformance of the engine crank linkage, through the multi-body dynamics simulation means.First 3D design software Pro / E to create a part model, and then be assembled to get the datamodel of the organization’s assembly; then assembling the data model into ADAMS, definedmovement, vice, and quality attributes, the completion of the multi-body dynamics model ofCrankshaft and rigid body kinematics, dynamics simulation analysis to calculate eachcomponent in any time, anywhere, displacement, velocity, acceleration, and among thecomponents of force, etc.; the crankshaft model into Hypermesh software mesh, and Lanczosmethod in ANSYS modal analysis of the crankshaft, the natural frequencies and mode shapesof the crankshaft; generated crankshaft multi-body dynamics model based on the ANSYSmodal neutral file import to carry out the crankshaft axis Department of flexible multi-bodydynamics simulation and compared with the multi-body dynamics simulation results, thecrankshaft is a flexible body to affect the force between sports performance and components,export crankshaft dynamic load files; in ANSYS, the crankshaft the modal analysis modelimposed constraints and the crankshaft dynamic loading, dynamic response analysis of thecrankshaft transient dynamic response analysis of the results, find a dangerous position whenthe crank work, strength analysis.Combination of virtual prototyping technology and finite element analysis tools can bedone engine crankshaft dynamic response analysis, the methodology used closer to the actualworking conditions, its analysis results provide support for the precise design of the enginecrankshaft to provide a reference for follow-up crankshaft optimization work...