Dual-Sleeve Elastic Link for Directional Damping and Resilience
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Solution Overview
Problem
Existing elastic links for vehicles require complex manufacturing methods and expensive tools, such as bi-material and bi-injection processes, to achieve different elastic properties in various directions.
Innovation Solution
The proposed elastic link consists of two sleeves with distinct elastic bodies, each surrounded by inner and outer armatures. These elastic bodies exhibit different elastic behaviors in specific radial directions, allowing for improved damping and resilience without the need for a bi-injection press.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If bi-material and bi-injection methods are used to manufacture elastic links, then different elastic properties in different directions are achieved, but manufacturing complexity and tooling costs increase significantly
Solution Approach 1:
The elastic link is divided into two separate sleeves, each with its own elastic body molded between inner and outer armatures. This segmentation allows each sleeve to be manufactured independently using standard single-material injection molding processes, avoiding the need for complex bi-injection equipment while achieving different elastic properties through material selection and geometric configuration of each sleeve
Solution Approach 2:
The patent uses two different elastomeric materials with distinct elastic behaviors - one material optimized for damping in the first radial direction and another material optimized for resilience in the second radial direction. This composite material approach achieves directional elastic property differentiation without requiring bi-material injection processes
2Manufacturing precision
If bi-injection process is used to create elastic link with different elastic behaviors, then directional elastic properties are achieved, but manufacturing cost and process time increase
Solution Approach 1:
By separating the elastic link into two independently manufacturable sleeves, each can be produced using efficient single-material injection molding. This eliminates the time-consuming bi-injection process while maintaining the ability to achieve different elastic behaviors through material and geometric design of each sleeve
Solution Approach 2:
The inner and outer armatures are prepared in advance as mold components, allowing the elastic bodies to be directly molded between them in a single injection process. This preliminary preparation of the armature structure enables efficient manufacturing without requiring complex multi-step bi-injection operations
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
This design simplifies manufacturing by using a single material injection molding machine, optimizes vulcanization parameters for each sleeve, and eliminates the need for additional parts, resulting in a more efficient and cost-effective elastic link.
Implementation Method 1
the first elastic body and the second elastic body exhibit different elastic behaviors. According to a first option, the first elastic body is more damping than the second elastic body according to a first radial direction relative to an axis of the link
Implementation Method 2
the second elastic body is more resilient than the first elastic body according to a second radial direction relative to the axis
Implementation Method 3
the first elastic body presents a damping between 0.10 and 0.24 according to the first radial direction, for example of the order of 0.14. Additionally, or alternatively, the second elastic body presents a damping between 0.04 and 0.11 according to the second radial direction
Data Source
AI summary
An elastic link comprising a first sleeve and a second sleeve. The first sleeve comprises a first elastic body, a first inner armature surrounded by the first elastic body, and a first outer armature surrounding the first elastic body. The second sleeve comprises a second elastic body, a second inner armature surrounded by the second elastic body, and a second outer armature surrounding the second elastic body. The first elastic body and the second elastic body presenting different elastic behaviors. This constitutes an improved elastic link.