大功率船用齿轮箱结构优化.PDFVIP

第31 卷第11 期 重庆大学学报 Vol. 31 No. 11 2008 年11 月 Jour nal of Chongqing U niversity Nov. 2008 : 1000582X( 2008 朱才朝, 徐向阳, 王海霞, 陆 波 ( 重庆大学机械传动国家重点实验室, 重庆 400030 : 综合考虑齿轮啮合力及箱体重力作用, 采用有限元法建立大功率船用齿轮箱的有限元 静力学模型, 分析计算4 种工况下齿轮箱的承载能力, 并对原齿轮箱的强度和结构刚度进行分析评 价基于等强度原则, 将优化设计与可靠性设计理论相结合, 建立齿轮箱优化模型在满足齿轮箱 结构安全的条件下, 对齿轮箱进行优化设计优化后的齿轮箱重量减轻 1. 06 t, 并且强度分布趋向 均匀, 结构变得更加合理, 具有一定的理论和工程实用价值 : 船用齿轮箱; 有限元模型; 强度分析; 刚度分析; 结构优化 : T H 123 : A 库 Structural optimization of highpower marine gearbox 例 ZHU Ca icha o , XU Xiangya ng , WANG Ha ixia , LU Bo 案 ( State Key Laboratory of Mechanical Transmission , Chongqing University, Chongqing 400030, P. R. China E A Abstract: T aking the influences of joggle for ces and gravity into account, a static model of a highpow er marine gearbox w as established using the finite element method. T he gearbox w orkload capacity w as C calculated in four w orking states. Gearbox strength and structural r igidity w ere analyzed. Combining theories of optim ization and reliability design, the gearbox optimization model w as obtained based on the 模 intensity principle. T o insure a safe structure, optimization designs w ere put in practice to impr ove the gearbox structure. As a result, the gearbox w eight w as reduced 1 060 t by structural optim ization. T he 凯 strength of the improved gearbox is mor e symm etrical and the structur e of the im proved