Resilient Fastening Arrangement for Vibration Damping
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Solution Overview
Problem
Existing vibration damping assemblies using resilient fastening elements often result in improper assembly, leading to increased sound or noise transmission, and are costly and complex to construct.
Innovation Solution
A resilient fastening arrangement comprising a first part for fixation, a second part for engagement, and a third part with a resilient member that extends within a hole of the structure, featuring varying spring rates along the arrangement axis to securely connect the parts and prevent dirt ingress, allowing for thinner and more effective damping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional stationary fastening elements are used, then mechanical communication between structures is achieved, but sound or noise transmission increases
Solution Approach 1:
The patent changes the mechanical parameters of the fastening element by introducing a resilient member with specific spring rates that allow controlled deformation. This resilient connection maintains mechanical communication while reducing sound transmission by absorbing vibrations rather than rigidly transmitting them.
Solution Approach 2:
The resilient member acts as an intermediary between the first and second structures, providing a compliant connection that reduces direct mechanical coupling. This intermediary element absorbs and dampens vibrations, thereby reducing sound transmission while maintaining structural connection.
2Object-generated harmful factors
If resilient fastening elements are used, then sound transmission is reduced, but assembly reliability decreases due to improper assembly
Solution Approach 1:
The resilient member with varying spring rates provides self-aligning and self-adjusting properties during assembly. The different spring rates in different regions guide the assembly process and ensure proper positioning, reducing the risk of improper assembly while maintaining sound reduction benefits.
Solution Approach 2:
The patent employs parameter changes in the spring rate distribution along the resilient member to optimize both sound reduction and assembly reliability. By strategically varying the spring rate, the design ensures stable connection while maintaining acoustic isolation.
3Object-generated harmful factors
If resilient fastening arrangements are used, then sound damping is improved, but device complexity increases
Solution Approach 1:
The resilient member features local variations in spring rate along its length, with different regions having different stiffness characteristics. This local quality differentiation optimizes sound damping in specific areas while maintaining overall structural integrity, achieving effective sound isolation without excessive complexity.
4Object-generated harmful factors
If resilient fastening elements are used, then sound transmission is reduced, but manufacturing cost increases
Solution Approach 1:
The patent achieves cost-effective sound isolation by optimizing the spring rate parameters of the resilient member rather than using complex multi-component systems. The varying spring rate design can be implemented in a single manufacturing process, reducing overall manufacturing complexity and cost while maintaining acoustic performance.
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 arrangement effectively reduces vibrations and noise transmission by minimizing mechanical contact and ensuring secure, efficient assembly, achieving improved damping performance and reduced thickness.
Implementation Method 1
a third part arranged to resiliently connect the first part to the second part along an arrangement axis
Implementation Method 2
The core region is configured to have a core region spring rate along the arrangement axis. The end regions are configured to have a spring rate along the arrangement axis being different from the first axial spring rate
Data Source
Figure 1~2
Figure 3a~5a
Figure 5b~6b
AI summary
Disclosed is a resilient fastening arrangement (200) for construction of a vibration damping assembly (100) comprising at least a first structure (110) and a second structure (120). The resilient fastening arrangement (200) comprises a first part (210) for fixation to the first structure (110) of the assembly (100) and a second part (220) for engagement with the second structure (120) of the assembly (100). The arrangement (200) further comprise a third part (230) arranged to resiliently connect the first part (210) to the second part (220) along an arrangement axis (D). The third part (230) comprises a resilient member arranged to at least partially extend within a hole (125) of the first structure (110) and/or of the second structure (120) of the assembly (100). Further resilient fastening arrangement (200), vibration damping assemblies (100) and a method for constructing a vibration damping assembly (100) are disclosed.