摘要
采用弹簧单元模拟轮齿啮合刚度,杆单元模拟箱体间的联结螺栓,弹簧阻尼单元模拟滑动轴承和滚动轴承,建立由齿轮、传动轴、轴承和箱体等组成的GWC6066船用齿轮箱动态有限元分析模型及声学边界元模型;分析了齿轮箱在内部动态激励下的动态响应,预估了齿轮箱的振动烈度、结构噪声及空气噪声,并对齿轮箱进行实验模态分析及振动噪声测试,与仿真结果对比分析,二者吻合良好。
The mesh stiffness of gear tooth is simulated by spring elements,the connected bolt between various housings are simplified as bar elements,and the sliding bearing and rolling bearing are simplified as spring dumping elements.Based on them,the gear-shaft-bearing-housing coupled finite element model and boundary element model of GWC6066 marine gearbox are established.Finally,the dynamic response under internal dynamic excitation is analyzed and the vibration severity,structural-borne noise and air-borne noise of the gear system are forecasted.Through the experimental modal analysis of gear system,and the test of vibration response and air pressure,the natural frequencies,vibration severity,structural-borne noise and air-borne noise are obtained.Compared with numerical results,two results show good agreement.
出处
《重庆大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2011年第8期48-54,共7页
Journal of Chongqing University
基金
国家科技支撑计划资助项目(2011BAF09B07)
重庆市自然科学基金计划资助项目(CSTC
2009BB3201)
关键词
船用齿轮箱
动态响应
振动
噪声
marine gearbox
dynamic response
vibrations
acoustic noise
