排灌机械工程学报2017，Vol.35Issue(8)：725-730,6.DOI:10.3969/j.issn.1674-8530.17.0040
卷盘喷灌机传动系统的疲劳仿真
Fatigue simulation of transmission system of hose reel irrigators
摘要
Abstract
In order to analyze the actual stress condition of the key parts of the transmission system of hose reel irrigators, and to estimate the fatigue life, the structure fatigue life prediction method based on the multibody dynamics simulation and Finite Element Method (FEM) was proposed, and the worm drive system fatigue life was predicted with this method as an example.The virtual prototype simulation model of the main components of the transmission system was established.The dynamic load histories of the worm drive system were evaluated by applying the ADAMS multibody system analysis technique;the fatigue life of gear, bearing and chain of transmission system were estimated by the Software ANSYS stress-based safety factor technology, which includes static strength and life estimation.The simulation results show that the resultant force of gear 16 is 5 392 N, the maximum theoretical force is 5 526 N, and the simulation error is 2.42%;the bending fatigue life value of gear 16 is 2.34×105;the maximum radial force of bearing 8 is 1 685 N, and the fatigue life is 1.12×105 h;the average link peak in the range of 0-1 s tension is 11 837.2 N, the theoretical calculation value is 12 012 N, the actual calculation error is 1.45%.The error between the simulation value and the theoretical value is very small, which indicates that the simulation method can be used to diagnose the causes of fatigue accidents, and can serve as the basis for strengthening measures.关键词
卷盘式喷灌机/传动系统/蜗轮蜗杆传动/动力学仿真/疲劳寿命预估Key words
hose reel irrigators/transmission system/worm and worm gearing/dynamics simulation/fatigue life prediction分类
农业科技引用本文复制引用
李科,汤跃,赵进..卷盘喷灌机传动系统的疲劳仿真[J].排灌机械工程学报,2017,35(8):725-730,6.基金项目
国家重点研发计划项目(2016YFC0400104) （2016YFC0400104）
江苏高校优势学科建设工程项目 （）
