Gearbox housing vibration frequency response analysis method and system
CN117195433BActive Publication Date: 2026-07-07YANGTZE DELTA REGION INST OF TSINGHUA UNIV ZHEJIANG
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- YANGTZE DELTA REGION INST OF TSINGHUA UNIV ZHEJIANG
- Filing Date
- 2023-09-22
- Publication Date
- 2026-07-07
AI Technical Summary
Technical Problem
Existing technologies have failed to effectively suppress transmission vibration frequency response through internal gear optimization design, thus affecting vehicle vibration and noise levels.
Method used
By analyzing the influence of gear modification on the vibration frequency response of the gearbox, a physical model of the gearbox transmission system is constructed, the gear transmission error and bearing dynamic support reaction force are solved, and frequency response deformation cloud map is generated by combining modal analysis and finite element method.
Benefits of technology
This provides a basis for suppressing transmission vibration and noise, improves vehicle vibration performance, and enhances the transmission's vibration suppression effect.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN117195433B_ABST
Abstract
The application provides a gearbox housing vibration frequency response analysis method, comprising the following steps: based on the geometric parameters of each gear, performing modification to obtain the tooth profile curve parameters of each modified gear, and performing involute cylindrical helical gear three-dimensional modeling on each gear to construct a physical model and parameters of a gearbox transmission system; analyzing the physical model to solve the transmission error of each gear to simulate the bearings of each shaft to obtain the dynamic bearing reaction force of each shaft; constructing a gearbox housing model to perform modal analysis to solve the first 10 order natural frequencies and natural modes of the gearbox housing; constructing a finite element model of the gearbox housing, setting the analysis frequency range and step length, and taking the dynamic bearing reaction force of each shaft as the excitation to simulate and solve the frequency response deformation nephogram of the gearbox housing under the first 10 order natural frequencies. By implementing the application, the influence of gear modification on the gearbox vibration frequency response can be analyzed to provide a basis for subsequent improvement of the vibration performance of the vehicle.
Need to check novelty before this filing date? Find Prior Art