Vehicle Vibration Device Support Member for Wheel Deflection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle vibration devices fail to effectively transmit vibration forces across the entire frequency range due to circumferential deflection of wheels, which hampers durability and quietness inspections.
Innovation Solution
A vehicle vibration device with a support member and a supporting force variable mechanism that adjusts the supporting force on the wheel in response to vibration frequency, ensuring effective transmission of vibration forces by positioning the support member between the first and second shafts, thereby minimizing wheel deflection and enhancing vibration efficiency across all frequency ranges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the first shaft is moved to excite the wheel to vibration, then the wheel is subjected to vibration forces, but the vibration force is not sufficiently transmitted to the wheel due to circumferential deflection of the wheel
Solution Approach 1:
A support member is introduced as an intermediary element between the first shaft and the wheel. This support member provides additional support to the wheel, preventing circumferential deflection during vibration excitation, thereby ensuring effective transmission of vibration forces to the wheel without the harmful deflection effect
2Reliability
If the support member is positioned between the first shaft and the second shaft, then the wheel is supported from below to suppress circumferential deflection, but the device complexity increases
Solution Approach 1:
The support member is designed to perform multiple functions: it supports the wheel from below to prevent circumferential deflection, and it can be integrated with the existing shaft structure. This multi-functional design minimizes the need for additional separate components, thereby reducing overall device complexity while maintaining vibration transmission effectiveness
3Adaptability or versatility
If the supporting force on the wheel is varied in response to vibration frequency, then effective vibration is achieved over the entire vibration frequency range, but the device complexity increases
Solution Approach 1:
The supporting force variable mechanism is designed to dynamically adjust the supporting force on the wheel based on the vibration frequency. This dynamic adjustment allows the system to adapt to different vibration frequencies and maintain effective vibration transmission across the entire frequency range. The mechanism uses simple dynamic elements that respond automatically to frequency changes, minimizing the need for complex control systems
Data Source
AI summary
In a vehicle vibration device including a first shaft and a second shaft extending in a left-right direction at such a spacing that each of wheels of a vehicle to be inspected is sandwiched therebetween in a front-rear direction and a movement mechanism that moves the first shaft, the first shaft being moved in a front-rear and horizontal direction by the movement mechanism to excite the wheel to vibration in front-rear and up-down directions, a support member that supports the wheel from below is provided between the first shaft and the second shaft. As a result, a vibration force produced by a front-side shaft is effectively transmitted to the wheel over an entire vibration frequency range in a vibration test.