Straight line and column envelope type meshing pairs are two important meshing pairs in single screw compressors, while straight line envelope meshing pair is actualized but the other is still fail to meet industrial applications. The column envelope meshing pair of single screw compressors is proposed to improve the operating life of the compressor for poor wear resistance of existing straight...

To reveal the nonlinear dynamic behavior of gear rattling vibration caused by backlash, a 2-DOF oscillator model with spring and damping elements was established. Based on theory discontinuous dynamical systems, phase plane motion divided into three parts: domain tooth surface meshing motion, free back motion. Introducing global mapping local dynamics method, process teeth from impact to then a...

This paper presents the investigation into the tooth profile features, meshing characteristics and the principle of forming circular arc tooth race cylindrical gears (CATT gears). Based on the meshing theory of the curvilinear gear, tooth surface equations and meshing line equations of the gears and rack shave been established. The graphical analysis of these equations shows meshing performance...

In this research, we integrate a three-dimensional micro-/nano-lattice structure metamaterial with conventional helical gears using composite method to reduce the vibration. A comprehensive six-degree-of-freedom nonlinear dynamics model is constructed analyze vibration characteristics of resulting mechanical gear pair. The incorporates crucial factors such as meshing damping, error excitation, ...

The effect of gear contact state change due to shaft misalignment on meshing stiffness is usually neglected in the traditional calculation model with error, further influence mechanism dynamic characteristics also unclear. To address these shortcomings, a new mesh misaligned considering effects tooth proposed by combining improved loaded analysis (LTCA) model. Then changes aroused excitation ar...

Dynamic pointing and tracking accuracy are the most relevant indicators of dynamic performance for satellite antenna driving mechanism. Multi-clearance coupling in joints will incur high-frequency vibration errors system. Joints existing analytical models generally oversimplified as planar revolute hinges, which ignore effect multi-clearance. It cannot proficiently predict behavior mechanism wi...