摘要
将某柴油机飞轮壳的材料由灰铸铁HT250改进为压铸铝ADC12,实现了该柴油机飞轮壳轻量化改进。采用ABAQUS软件对飞轮壳进行静力学结构仿真分析,仿真结果表明:飞轮壳的Mises应力低于ADC12的抗弯屈服强度200.5 MPa,但是飞轮壳局部疲劳安全系数较低。将后悬置安装位置由变速箱的后端部优化到飞轮壳两侧,飞轮壳的最小疲劳安全系数由0.904提高至1.643。优化后的飞轮壳顺利通过耐久考核试验,飞轮壳质量减轻37.5 kg,轻量化改进效果明显。
The flywheel housing was improved by changing the material from HT250 to ADC12 to achieve the light weight improvement of diesel engine.The static structural simulation analysis of the flywheel housing was carried out by ABAQUS software.The simulation results show the Mises stress of the flywheel housing was lower than the bending yield strength of ADC12 of 200.5 MPa,and the local fatigue safety factor of flywheel housing is low.The installation position of the rear support was changed from the rear tail of the gearbox to the both sides of the flywheel housing,the minimum fatigue safety factor of the flywheel housing was increased from 0.904 to 1.643.The optimized flywheel housing passed the endurance test successfully.The optimized flywheel housing was reduced by 37.5 kg,the lightweight improvement effect was obvious.
作者
王雪莉
Wang Xueli(Shanghai Diesel Engine Co.,Ltd.,Shanghai 200438,China)
出处
《柴油机设计与制造》
2021年第4期47-52,共6页
Design and Manufacture of Diesel Engine
关键词
飞轮壳
减重
结构优化
仿真分析
Flywheel housing
Lightweight
Structural optimization
Simulation analysis
