Modeling and Simulation of the Crank-Connecting Rod Mechanism in Internal Combustion Engine

It's crucial to have a simulation study on the working characteristic of crank-connecting rod mechanism in the design of internal combustion engine.Based on the theory of mechanical dynamic simulation,a dynamic simulation method by using Pro/E and Matlab for the analysis of crank-connecting rod mechanism in internal combustion engine is introduced.Combining with an example,an assembling model of crank-connecting rod mechanism is built by using Pro/E.At the same time,with the mechanism module of Pro/E,a dynamic analysis for crank-connecting rod mechanism is obtained.And the characteristics of movements and forces of those main parts such as piston are also gained.With those results,loads on main bearings are calculated by using Matlab.The analysis of simulation results shows that those simulation results are accordant with true working state of internal combustion engine.It also shows that the simulation method introduced here can offer a new efficient and convenient way for the mechanism choosing and optimized design of crank-connecting rod mechanism in internal combustion engine.