Vehicle Power Train Maintenance Cover Vibration Suppression
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Solution Overview
Problem
Existing maintenance cover structures for vehicle power trains do not adequately suppress vibrations, leading to membrane surface resonance and radiated noise, especially in hybrid vehicles where quieter performance is required.
Innovation Solution
A maintenance cover member with a block-shaped rubber vibration suppressing member bonded to the cover body, strategically positioned on imaginary lines connecting fixing points to the oil pan and transmission, enhances vibration suppression by distributing vibration absorption effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a maintenance cover is fixed to the transmission and oil pan using fastening members, then the cover is securely attached, but vibration and noise due to membrane surface resonance occur
Solution Approach 1:
A vibration suppressing member made of rubber material is introduced as an intermediary between the maintenance cover and the fastening members. This intermediary component absorbs vibrations and suppresses membrane surface resonance while maintaining the anchorage connection, thereby reducing noise without compromising attachment strength
Solution Approach 2:
The maintenance cover system combines different materials with complementary properties: a rigid cover body for structural integrity and fastening, combined with a rubber vibration suppressing member for vibration absorption. This composite material approach allows simultaneous achievement of strong attachment and vibration suppression
2Reliability
If vibration suppressing members are added to the maintenance cover, then vibration suppression performance is improved, but processing complexity increases
Solution Approach 1:
The vibration suppressing member is divided into multiple separate components rather than using a single large piece. This segmentation allows each small rubber member to be easily positioned and attached at specific locations on the maintenance cover, simplifying the manufacturing and assembly process while achieving effective vibration suppression
Solution Approach 2:
The vibration suppressing members use simple rubber materials that are inexpensive and easy to process. These components can be easily manufactured and replaced if needed, providing cost-effective vibration suppression without complicating the overall manufacturing process
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution significantly reduces noise generation due to membrane surface resonance, improving vibration suppression performance and maintaining ease of processing and anchorage strength.
Implementation Method 1
a block-shaped rubber member vulcanized and bonded to the surface of the cover body
Implementation Method 2
the vibration suppressing member can suppress vibration of the cover body
Data Source
AI summary
There is provided a maintenance cover member including: a cover body for closing an opening of a power train of a vehicle; and a vibration suppressing member attached to a surface of the cover body. There is also provided a maintenance cover member including: a cover body for closing an opening of a power train of a vehicle; and a plurality of vibration suppressing members attached to a surface of the cover body. Adjacent vibration suppressing members are disposed spaced apart from each other.