關鍵詞：連桿機構；曲柄滑塊機構；有限元法；ANSYS；瞬態動力學分析
The finite element analysis of link mechanism
Abstract：
Ansys ( finite element analysis) is a powerful general-purpose finite element analysis software. Currently, it is widely used in shipbuilding, automotive, aerospace, civil engineering, machinery manufacturing and scientific research. Initially, it can only be using on the mainframe and provides thermal analysis and linear structural analysis capability, but now， It has developed into a financial structure, fluid, electric field, magnetic field, sound field analysis in one can run on most computer and operating system in the large-scale general finite element analysis software.
Connecting rod mechanism is a common mechanism, the slider crank mechanism is an extension of link mechanism, a wide range of applications, such as in a diesel engine. With the development of engineering technology ,the accuracy is also very make requirements.
Topic is on the slider crank mechanism was analyzed based on the ANSYS software, and compared with the traditional calculation, With the help of computer finite element analysis method can more quickly and accurately obtain results, set the correct parameters, create the appropriate element type, set the solving process is reasonable, can accurately obtain the correct solution analysis model, the design and optimization of the organization has a great help.
Of course, the error will exist in the analysis process, ansys analysis is due to a difference can be input to the analysis of the elastic modulus of crank slide mechanism and the theoretical value, the Poisson's ratio of the relevant
parameters have a certain effect on the analysis results.
Keywords: link mechanism; Slider crank mechanism; Transient dynamic analysis
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