Shock Absorber Assembly Flexible Mounting Stress Distribution
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Solution Overview
Problem
Shock absorbers in vehicular interior parts are prone to stress concentration and potential deformation or breakage at the mounting portion when a load is applied, causing them to shift from their intended position relative to a passenger's thigh during a side collision.
Innovation Solution
A shock absorber assembly that includes a shock absorber pad with flexible member coverage, mounted to the vehicular interior part via a spacer and flexible member, which distributes stress and maintains the absorber's position by being indirectly attached to the compartment outer side surface, preventing deformation and displacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the shock absorber is directly mounted to the vehicular interior part, then the mounting structure is simple, but the mounting portion is prone to stress concentration and deformation
Solution Approach 1:
A flexible member is introduced as an intermediary component between the shock absorber and the vehicular interior part. This flexible member distributes the mounting stress over a larger area, preventing stress concentration at the shock absorber's mounting portion while maintaining the simplicity of the overall mounting structure.
2Stability of the object's composition
If the shock absorber is rigidly fixed to maintain position, then the position stability is improved, but the shock absorbing property deteriorates
Solution Approach 1:
The flexible member is made of a flexible material that can deform under load. This flexibility allows the member to accommodate the shock absorber's movement and deformation during collision, maintaining the shock absorbing property while still providing positional stability through friction and geometric constraints.
3Stability of the object's composition
If the flexible member tightly covers the shock absorber, then the position maintenance is improved, but the shock absorber deformation is restricted
Solution Approach 1:
The flexible member forms a loose cover around the shock absorber, providing positional guidance through friction and geometric constraints while allowing the shock absorber to deform freely during collision. The flexible material's compliance ensures that the shock absorber's shape change is not restricted.
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 effectively maintains the shock absorber's position relative to the passenger's thigh during collisions, reduces stress concentration at the mounting point, and preserves the shock-absorbing properties by using a flexible member to distribute loads, thereby preventing deformation and ensuring effective energy absorption.
Implementation Method 1
a part of the flexible member is held by the vehicular interior part and the utility part to support and mount the shock absorber to the vehicular interior part
Implementation Method 2
The shock absorber protects a passenger if a side collision occurs and a load is applied to the vehicular interior part
Data Source
AI summary
A shock absorber assembly includes a shock absorber, a utility part, and a flexible member. The shock absorber is provided to a vehicular interior part that is mounted on a compartment inner side of a body panel, and the shock absorber includes a mounting portion that is mounted to a compartment outer side surface of the vehicular interior part. The utility part is provided to the vehicular interior part. The flexible member covers a peripheral surface of the shock absorber, and a part of the flexible member is held by the vehicular interior part and the utility part to support and mount the shock absorber to the vehicular interior part.