摘要
舰船传动齿轮箱的设计要求一定的抗振性能和低噪声水平。在对船用齿轮箱模态分析的基础上,从运行环境分析其抗振要求,采用特征灵敏度技术衡量各部件对振动特性的影响权重,然后对低阶固有频率影响程度较大的上盖进行了多目标形貌优化和尺寸优化以获得其加强筋的分布方案,由此得到的结构修改方案显著地提高了齿轮箱的抗振性能。归纳了船用齿轮箱抗振结论和优化设计方法,对同类齿轮箱的抗振设计具有参照意义。
The design of marine transmission gearbox requires certain vibration-resistant property and low noise level.Based on modal analysis of marine gearbox,vibration-resistant requirements were analyzed from its operating environment.Eigenvalue sensitivity technique was utilized to measure the influence weight of vibration characteristics by each component.Then multi-objective topograph optimization and size optimization of top cover that has bigger influence on the low step natural frequency were carried out to obtain the distribution scheme of reinforced rib,thus modification scheme of gearbox which can significantly improve its vibration-resistant characteristics was obtained.Research conclusions of marine gearbox were summarized,presenting reference significance for vibration-resistant design of similar structure.
出处
《机械设计》
CSCD
北大核心
2011年第2期69-72,共4页
Journal of Machine Design
基金
黑龙江博士后基金资助项目(LBH-Z09239)
关键词
特征灵敏度
抗振
船用齿轮箱
加强筋分布
优化设计
eigenvalue sensitivity
vibration-resistant
marine gearbox
reinforced rib distribution
optimum design
