外文翻译--基于ansys的金属齿轮与塑料齿轮固有振动特性的对比分析(编辑修改稿)

外文翻译--基于ansys的金属齿轮与塑料齿轮固有振动特性的对比分析(编辑修改稿)内容摘要：

ion results. Modal analysis results in order to get the whole gear model, the modal expansion, extended for solving the advantages of each order, for the obtained natural frequency. Solving r its corresponding mode shape is reflected in the natural frequency of each node of the gear relative displacement and relative stress conditions. Set the mode of state expansion, extended frequency range 0 100 000. Again into the solver to calculate and view the solution results, including the natural frequency, r, has been extended modes and the corresponding relative) il, power distribution 2 Define the material properties Structure of alloy steel Alloy steel with high strength, high toughness, wear resistance, corrosion resistance, low temperature, high temperature, nonmagic and other special properties. Used to produce withstand dynamic load and heavy load of automobile transmission gear and car rear axle gear monly used in power transmission, and high reliability of mechanical equipment in the engineering materials. Engineering materials, plastic is characterized by: (1) selflubrication, lubrication operation when necessary。 (2) to reduce noise。 ③ light weight with excellent corrosion resistance of twophase metal gears, plastic gears, light weight industrial noise , resistant to wear, no lubrication, forming a more plex shape, mass production and low cost but because of two plastic itself is demanding, the work environment more sensitive to temperature, the relative metal strength is weak. Thus, the plastic gear at the same time have low accuracy, short life, the use of environmental requirements of the disadvantages. 39。 Article lists the parameters and material parameters of the mechanical properties of the two materials. 3 the two materials modal analysis results and pare Modal analysis results After the definition of material properties, the modal analysis of finite element model of the gear to get before the modal natural frequency to enter PaSI39。 1 processor to view the solution results from the results seen, the mode shapes of the plastic gears with alloy steel gear the same type listed gear mode shapes shown in Figure 2. . Figure 2 modal graph To reverse the type, the axis of its deformation in the end face of the performance for the relative torsional vibration mode。 modal performance for radial vibration: the vibration of the side surface showing polygon shapes, almost no axial vibration. Due to space limitations, gear vibration data not shown, the vibration mode shape。