In order to solve the problem of cracking or deformation of the reducer's friction plate during braking due to uneven heat conduction,a finite element analysis model is created based on the finite element analysis software ABAQUS,and thermodynamic analysis is carried out on the reducer's friction plate under braking conditions.The calculation results show that the contact pressure of friction plate is uniformly distributed in the early stage of braking,and in the middle and late stages of braking,due to the uneven friction heat transfer,the contact pressure distribution along the radial direction is higher in the middle diameter and slightly lower in the inner and outer diameter,the circumferential pressure distribution is uniform,and the maximum compressive stress is in the range of permissible compressive stress.On this basis,further calcu-lations of temperature field and thermal stress distribution of the friction plate show that the radial temperature gradient and thermal stress gradient of the friction surface do not change significantly,the temperature field and thermal stress distribu-tion is uniform,and the maximum thermal stress is much lower than the permissible thermal stress.Final results can be con-cluded from comprehensive analysis of the contact pressure,temperature field and thermal stress distribution that no radial cracks or disc warping deformation will be produced on the friction plate under the initial parameters of the braking condi-tion,which meets the braking requirements of the reducer.The thermodynamic analysis of the friction plate provides a solid data base for improving the design and manufacturing process of electric forklift's braking device.
关键词
ABAQUS/减速器/摩擦钢片/热力学/有限元分析
Key words
ABAQUS/reducer/friction steel plate/thermodynamics/finite element analysis
维普
万方数据