Catalyst Converter Support Structure for Multi-Directional Vibration Damping
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Solution Overview
Problem
Existing catalyst converter support structures fail to effectively dampen vibrations in directions perpendicular to the fastening direction of screws, leading to potential structural damage and reduced durability.
Innovation Solution
A support member comprising a pair of first support members and a second support member, both made of elastic material, where the first support members sandwich and support the attachment portion, and the second support member supports the inner peripheral side of a through hole, absorbing vibrations in multiple directions through elastic deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single vibration damping component is used with a screw fastening structure, then vibration in the fastening direction can be dampened, but vibration in directions perpendicular to the fastening direction cannot be prevented
Solution Approach 1:
The vibration damping component is segmented into multiple independent damping elements: a first damping element for damping vibration in the fastening direction, and a second damping element for damping vibration in directions perpendicular to the fastening direction. Each damping element is independently configured to address specific vibration directions, thereby achieving comprehensive multi-directional vibration protection.
Solution Approach 2:
The invention transitions from single-directional vibration damping to multi-directional vibration damping by adding spatial dimensions to the damping capability. The first damping element operates along the screw fastening axis, while the second damping element operates in the radial direction perpendicular to the axis, creating a three-dimensional vibration damping system that addresses vibrations from multiple directions simultaneously.
2Reliability
If multiple separate support components are added to dampen vibrations in multiple directions, then multi-directional vibration damping is achieved, but the device complexity increases
Solution Approach 1:
The first damping element and the second damping element are merged into a single integrated vibration damping component. The first damping element is formed as an integral part of the vibration damping component, and the second damping element is formed as another integral part of the same component, allowing multi-directional vibration damping to be achieved without increasing the number of separate parts or assembly steps.
Solution Approach 2:
The vibration damping component is designed with multi-functionality, serving both as a structural support element and as a multi-directional vibration damping element. The first damping element and second damping element work together within a single component to provide comprehensive vibration protection in multiple directions, eliminating the need for separate damping components for each direction.
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 support member effectively dampens vibrations in both the axial and radial directions, enhancing durability and reducing the risk of structural damage, while allowing for a lighter and less costly catalyst converter design.
Implementation Method 1
vibration applied to the catalyst converter is absorbed by elastic deformation of the plate spring member
Implementation Method 2
vibration in a thickness direction of the plate spring member is absorbed by elastic deformation of the first support members that vertically sandwich the other end portion of the plate spring member
Implementation Method 3
vibration in a longitudinal direction of the plate spring member is absorbed by elastic deformation of the second support member disposed on the inner peripheral side of the through hole provided at the other end portion of the plate spring member
Data Source
AI summary
A support member includes: a pair of first support members provided to sandwich and support an attachment portion, one of the first support members being in contact with a vehicle side; and a second support member provided between the pair of first support members, formed separately from the first support members, and configured to support an inner peripheral side of a through hole. An attachment portion is provided at the other end portion of a plate spring member having one end portion fixed to a catalyst converter, and vibration applied to the catalyst converter is absorbed by elastic deformation of the plate spring member. Vibration in a thickness direction of the plate spring member is absorbed by elastic deformation of the first support members, and vibration in a longitudinal direction of the plate spring member is absorbed by elastic deformation of the second support member.