质量不平衡对齿轮传动系统振动影响的数值分析  

Numerical Analysis of the Influence of Mass Non-equilibrium on Vibrations in a Gear Transmission System

作　　者：张坤[1] 李应生[1] 郑百林[2] 

机构地区：[1]中国船舶重工集团公司第七○三研究所,黑龙江哈尔滨150036 [2]同济大学航空航天与力学学院,上海200092

出　　处：《热能动力工程》2010年第3期312-316,359,共6页Journal of Engineering for Thermal Energy and Power

摘　　要：对于大型高速齿轮转子系统,质量不平衡会产生周期的离心惯性力,使系统产生振动,影响强度和寿命。基于MSC.ADAMS建立齿轮系统弯扭耦合振动模型,并考虑了啮合型耦合和转子动力型耦合两种情况,将齿轮做刚性化处理而轴做柔性化处理。采用多柔体动力学分析方法仿真得出齿轮在正常啮合和齿轮质量不平衡引起的转子涡动条件下的齿轮动态激励力和齿轮中心的涡动轨迹,以此进行分析比较,为齿轮箱动力学分析提供依据。在MSC.Patran中建立齿轮箱动力分析有限元模型,利用MSC.Nastran对齿轮箱进行瞬态动力学分析,得到齿轮正常啮合和质量不平衡引起的涡动两种工况下箱体的振动特性。For a large-sized high-speed gear rotor system,mass non-equilibrium may produce a periodic centrifugal inertia force and cause vibrations to the system,affecting its strength and service life. Based on MSC.ADAMS,a bowed and twisted coupled vibration model for a gear system was established with two circumstances being taken into account,namely,engagement type coupling and rotor dynamic type one. The gears were processed as a rigid body while the shaft was treated as a flexible one. By adopting a multiple fle...

关 键 词：弯扭耦合振动 齿轮转子系统 涡动 质量不平衡 振动. 

分 类 号：TH132.41[机械工程—机械制造及自动化]