Virtual Prototyping Technology And Its Applied Research In The Development Of New Internal Combustion Engine

With the development of the global market, production research must be quickly in response to the need of market. During the research , virtual prototyping can be applied to optimize the project of design ,shorten time and reduce design cost, as a result company can get the run upon the competition. This article optimizes the mechanism and establish the model of new type internal-combustion engine based on virtual prototyping technology according to the demand of the mechanism with double connecting rods and crankshafts.According to the demand of TOP_DOWN design method, the motion projection with double connecting rods and crankshafts must be optimized firstly. Based on the analyse the structure characteristic, the software is developed with C-H-Builder, which can be applied to study the influence on the motion from dimension and tolerance .At last, the best motion projection is ascertained .After ascertaining the motion projection, the engine model with double connecting rods and crankshafts is established and the rationality about the structure of the model has been tested. At the same time , the standard component parts library such as bolt, nut, bond and pin is builded, which will be convenient to later design.Dynamic analyse is fulfiled with ADAMS on the the study of theory on dynamic simulation according to the practical model .The splines are drawn out in different working condition.This article discusss how to apply virtual prototyping technology to design new type internal-combustion engine and optimizes the model so as to shorten design and research time.