Vehicle Body Damper Brace With Prizing Displacement Regulator
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Solution Overview
Problem
Conventional vehicle body damper braces primarily designed for axial loads face challenges in durability and stability when subjected to forces in the prizing direction, leading to mechanical damage and adverse effects on damping performance.
Innovation Solution
A vehicle body damper brace with a rod member and housing connected by an elastic connector made of viscoelastic material, supplemented by a regulator that suppresses relative displacement in the prizing direction, ensuring durability and maintaining axial characteristics by allowing elastic deformation and regulating excessive prizing deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the rod member and housing are connected by a rigid structure to prevent relative displacement in the prizing direction, then durability under prizing direction input is improved, but the damping performance in the axial direction deteriorates due to excessive constraint
Solution Approach 1:
The patent uses an elastic connector with viscoelastic material properties that provides flexible connection between the rod member and housing. This flexible connection allows controlled relative displacement in the prizing direction while maintaining durability, and simultaneously preserves the damping performance in the axial direction by allowing necessary movement.
Solution Approach 2:
The patent changes the mechanical parameters of the connection between rod member and housing by introducing an elastic connector with specific viscoelastic properties. This parameter change enables the system to tolerate prizing direction inputs without mechanical damage while maintaining the intended damping characteristics in the axial direction.
2Object-generated harmful factors
If the rod member and housing are allowed to displace relative to each other in the axial direction for damping, then damping performance is improved, but mechanical damage occurs under prizing direction input
Solution Approach 1:
The elastic connector acts as a flexible element that permits axial displacement for damping purposes while providing sufficient restraint in the prizing direction to prevent mechanical damage. The viscoelastic material properties enable this directional differentiation in movement tolerance.
Solution Approach 2:
The patent introduces dynamic characteristics to the connection system through the elastic connector, allowing the system to adapt its stiffness characteristics based on the direction and magnitude of applied loads. This dynamic behavior enables safe operation under both axial and prizing direction inputs.
3Object-generated harmful factors
If a friction mechanism is used to provide damping force, then damping performance is improved, but catching and local wear occur on the sliding surface
Solution Approach 1:
The patent replaces the friction-based mechanical damping mechanism with an elastic connector that provides damping through viscoelastic deformation. This substitution eliminates the sliding contact that causes catching and local wear, while still providing the necessary damping force through material hysteresis.
Solution Approach 2:
The use of viscoelastic material in the elastic connector combines elastic and viscous properties to provide damping force without the harmful effects of friction mechanisms. The composite material behavior enables energy dissipation through internal friction within the material itself rather than through contact friction.
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 enhances durability and stability by preventing mechanical damage and maintaining intended damping performance under both axial and prizing direction inputs, while allowing for independent design and material selection of the elastic connector and regulator.
Implementation Method 1
the elastic connector including a first connection body comprising a viscoelastic material, the elastic connector elastically connecting the rod member and the housing to each other in an axis-perpendicular direction
Implementation Method 2
an elastic connector including a first connection body comprising a viscoelastic material
Implementation Method 3
a regulator provided on at least one axial side of the first connection body and separately from the elastic connector, the regulator suppressing an amount of relative displacement between the rod member and the housing in a prizing direction
Data Source
AI summary
A vehicle body damper brace including: a rod member having an elongated shape; a housing including a tubular part arranged externally about the rod member; an elastic connector including a first connection body comprising a viscoelastic material, the elastic connector elastically connecting the rod member and the housing to each other in an axis-perpendicular direction; and a regulator provided on at least one axial side of the first connection body and separately from the elastic connector, the regulator suppressing an amount of relative displacement between the rod member and the housing in a prizing direction.