冲击谱激励下齿轮系统的动力学性能  

Dynamics performance analysis on gear system under shock spectrum

作　　者：刘文[1] 林腾蛟[1] 李润方[1] 廖勇军[1] 

机构地区：[1]重庆大学机械传动国家重点实验室,重庆400044

出　　处：《重庆大学学报（自然科学版）》2010年第1期7-11,共5页Journal of Chongqing University

基　　金：国家科技支撑计划资助项目(2006BAF01B01-03);重庆市重大科技专项(CSTC;2007AB3030)

摘　　要：依据德国BV043/85标准确定船用齿轮系统冲击谱,并转换为等效的双半正弦加速度冲击载荷。借助I-DEAS软件,利用杆单元、弹簧单元及四面体单元,建立包括齿轮、传动轴、轴承和箱体等组成的整个齿轮系统动力有限元分析模型,计算了齿轮系统的振动模态以及双半正弦加速度冲击载荷下的振动速度、振动加速度及动态应力。最后结合强度判定准则,分析了齿轮系统的抗冲击性能。According to German specification BV043/85 ,the shock spectrum of gear system is gotten. Using the spar element, spring element and tetrahedral element, the dynamic finite element model of entire gear system is established with the software of I-DEAS, which includes gears, shafts, bearings and gearbox housing. After the normal mode have been calculated, the vibration velocity, vibration acceleration and dy sh namic stress of gear system ock resistance performance under the double half-sine acceleration shock excitation are simulated. of the gear system is analyzed based on the strength criterion.

关 键 词：齿轮系统 冲击谱 抗冲击性能 动力学 有限元法 

分 类 号：TH113.1[机械工程—机械设计及理论]