Double-ring reducer radiation noise numerical value simulation and study method

Abstract

The invention discloses a double-ring reducer radiation noise numerical value simulation and study method. The method comprises the steps of firstly, establishing a power finite element analysis model of a reducer transmission system and structural system; secondly, applying ANSYS software to conduct natural mode of vibration and dynamic response numerical value simulation on a double-ring reducer; thirdly, with vibration displacement being a boundary condition, establishing an acoustic boundary element analysis model of a reducer case body; fourthly, using a direct boundary element method to calculate radiation noise of a case body surface sound pressure and field point in SYSNOISE software; fifthly, utilizing a transmission system test stand to conduct a vibration accelerated speed and radiation noise test on the double-ring reducer. According to the double-ring reducer radiation noise numerical value simulation and study method, gear internal dynamic incentive and an inertial incentive of an annular plate generated by a gear rigidity incentive, an error incentive and a meshing impact incentive are taken into comprehensive consideration, and a method with the combination of a finite element and a boundary element is adopted to conduct reducer dynamic response and numerical value simulation of radiation noise.

Description

technical field [0001] The invention relates to a reducer simulation experiment, in particular to a double-ring reducer radiation noise numerical simulation and research method, belonging to the technical field of reducer products. Background technique [0002] The ring reducer is a new type of gear device composed of a small tooth difference internal meshing gear transmission and a four-bar linkage mechanism. It has the advantages of simple structure, small size, light weight, large transmission ratio, high transmission efficiency, and strong bearing capacity; However, due to the large vibration and noise in actual use, which directly affect the popularization and application of the ring reducer, the research on the dynamic response and radiation noise of the ring reducer has important engineering and practical value; Numerous research results have been obtained in response, and a gear internal excitation numerical simulation method based on gear pair concentrated parameter...

AI Technical Summary

Problems solved by technology

[0002] The ring reducer is a new type of gear device composed of a small tooth difference internal meshing gear transmission and a four-bar linkage mechanism. It has the advantages of simple structure, small size, light weight, large transmission ratio, high transmission efficiency, and strong bearing capacity; However, due to the large vibration and noise in actual use, which directly affect the popularization and application of the ring reducer, the research on the dynamic response and radiation noise of the ring reducer has important engineering and practical value; Numerous research results have been obtained in response, and a gear internal excitation numerical simulation method based on gear pair concentrated parameter model or finite element model is proposed, and the inherent characteristics and dynamic response numerical simulation of the gear system are carried out. The simulation technology is also gradually applied to the gearbox radiation. For noise calculation, a simulation analysis method for solving radiation noise using finite element method, Rayleigh integral method, boundary element method, and infinite element method is proposed; current research on double-ring reducers mainly focuses on transmission mechanism, kinematics and dynamics In terms of analysis and vibration and noise testing, there are few studies on noise prediction