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The engine crank connecting rod mechanism is an important part of the engine and faces complex working conditions. In order to better analyse the structural principles of diesel engine components and to explore reasonable assembly paths, the basic parameters of a certain model of diesel engine used as reference, a three-dimensional model of each component of the engine crank connecting rod mechanism was constructed using CATIA software and product assembly was carried out. After the modeling was completed, based on known data and standard parameters, a theoretical analysis of the crank connecting rod mechanism was conducted in dynamics. The model was imported into ADAMS, and component constraints and appropriate driver programs were added. Multi body dynamics simulation was performed on the completed virtual prototype, obtaining AVI simulation animations and obtaining the motion change curves of the main components of the system. The virtual assembly and motion simulation of diesel engine crank connecting rod mechanism can clearly observe the structure of components and the action principle of diesel engine, verify the feasibility of assembly sequence and path of various components of large diesel engine, analyze the optimal assembly sequence, determine the optimal assembly path, improve the assembly quality of parts and final assembly, and reduce assembly costs.
Wang et al. (Fri,) studied this question.
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