中文摘要：

螺旋角和错位量是影响错位人字齿同步带传动误差、噪声和寿命的重要结构参数。基于空间啮合传动原理,建立带齿与带轮完全啮合状态的三维模型,并根据同步带复合材料属性进行分层建模,利用ANSYS Workbench有限元分析软件对模型进行了大变形、非线性静态分析。结果表明,带齿受载后的几何扭曲变形和齿向方向的刚度变化,导致带齿根部的最大应力沿齿向分布不均匀,并且强力层上应力分布出现集中。在相同错位系数下,30°螺旋角错位人字齿同步带齿根应力具有较小值,且人字齿同步带齿根最大应力为最小。

英文摘要：

The Spiral angle and dislocation quantity is important structural parameters influencing the transmission error,noise and lifespan of the double helical tooth synchronous timing belt. A three dimensional model of double helical tooth synchronous timing belt tooth and pulley under complete meshing is established based on the spatial meshing transmission principle. The hierarchical model of the synchronous timing belt is built concerning with the structural composite material properties. The large deformation and nonlinear static analysis of the above models are conducted with finite analysis software ANSYS Workbench. The results show that there has geometrical distortion deformation of the belt tooth along the lateral direction with the varying stiffness,resulting in maximum stress in the tooth root distributed uniformly along the lateral of the belt tooth and stress concentration in the strengthening layer. Under the same dislocation coefficient,the tooth root stress of the double helical tooth synchronous timing belt with spiral angle of 30° has minimum value,during which the maximum tooth root stress is the smallest.