Wire Rope Interface Plate for Vehicle Vibration Damping
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Solution Overview
Problem
Vehicles face challenges in optimizing noise, vibration, and harshness (NVH) levels due to vibrations transmitted through component connections, particularly noticeable in electric vehicles with reduced ambient noise.
Innovation Solution
A vibration reduction assembly using wire ropes disposed in retaining channels is integrated into the interface between vehicle components and the chassis, dissipating vibrations through friction damping to reduce propagation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If rigid components are physically connected to transmit forces, then structural strength is improved, but vibration propagation increases
Solution Approach 1:
A wire rope damper is introduced as an intermediary element between rigid components. The wire rope is constrained within a retaining channel structure, creating a controlled friction interface that mediates force transmission while dissipating vibrations through friction damping between the wire rope and retaining channel walls.
2Object-generated harmful factors
If wire rope is disposed in retaining channel, then vibration damping is improved, but structural strength may be reduced
Solution Approach 1:
The connection system combines rigid components (interface plate, retaining channel) with a flexible wire rope element. This composite structure leverages the strength of rigid materials for structural support while utilizing the friction damping characteristics of the wire rope to dissipate vibrations, achieving both strength and vibration reduction.
3Object-generated harmful factors
If friction damping is used to dissipate vibrations, then NVH levels are reduced, but energy loss increases
Solution Approach 1:
The friction that causes energy loss in the wire rope is intentionally utilized as a beneficial mechanism. The friction damping between the wire rope and retaining channel converts harmful vibration energy into heat, actively reducing NVH levels. The energy loss through friction is transformed from a detrimental effect into a useful vibration dissipation mechanism.
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 assembly effectively reduces NVH levels by converting vibration energy into heat and motion, maintaining structural integrity while minimizing vibrations in the vehicle cabin.
Implementation Method 1
The strands may dissipate vibrations through friction damping
Data Source
AI summary
An interface plate for operably coupling a vehicle component to a chassis of the vehicle may include a first surface adapted to be operably coupled to an actuator housing, a second surface adapted to be operably coupled to the chassis, and a vibration reduction assembly to reduce vibration propagation between the actuator housing and the chassis. The vibration reduction assembly may include a first retaining channel disposed in the first surface, and a first wire rope disposed within the first retaining channel.