Frequency-Tuned Damper With Integral Deflection Limiter
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Solution Overview
Problem
Existing frequency tuned dampers face issues with excessive movement due to external transient forces, leading to premature wear and potential disconnection of elastic elements, which increases manufacturing and assembly costs and time.
Innovation Solution
A frequency tuned damper with a console and elastic elements featuring a deflection limiter integrally formed with the rim, which limits excessive movement by contacting an impact surface, eliminating the need for separate movement limiting elements and allowing for a more flexible console design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate movement limiting elements are used to prevent excessive movement of the vibration body, then the reliability of the damper is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The deflection limiter is integrated into the console as a single integral component rather than being a separate part. This merging of functions reduces the number of components while maintaining the reliability function of limiting excessive movement of the vibration body during transient forces
Solution Approach 2:
The console serves multiple functions: it provides structural support, defines mounting openings, and includes the deflection limiter function through its integral structure. This multi-functionality eliminates the need for separate movement limiting elements, reducing device complexity while maintaining reliability
2Reliability
If separate movement limiting elements are used to prevent excessive movement, then the reliability is improved, but the assembly time and costs increase
Solution Approach 1:
By integrating the deflection limiter into the console as one piece, the assembly process is simplified. The console can be installed as a single component rather than requiring separate installation of movement limiting elements, thereby reducing assembly time and costs while maintaining reliability
3Reliability
If the console design is constrained by separate movement limiting elements, then the reliability is improved, but the adaptability of the console design decreases
Solution Approach 1:
The integral console design with built-in deflection limiter provides a universal solution that can be adapted to different applications. The flexible monolithic structure allows for various configurations and mounting arrangements while maintaining the reliability function, enhancing design adaptability
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 reduces assembly time and costs, ensures correct positioning of the deflection limiter, and enhances the elastic element's dual function in both spring-mass systems and deflection limiting, preventing excessive movement and potential disconnection.
Implementation Method 1
The function of frequency tuned vibration dampers, also termed tuned mass dampers or vibration absorbers, is based on a spring-mass system which counteracts and reduces vibrations in a surface
Implementation Method 2
at least one elastic element resiliently connecting the vibration body to the console
Implementation Method 3
said deflection limiter being arranged to limit the degree of movement of elastic element transversally to the longitudinal axis if the damper is subjected to an external transient force sufficient to bring the impact surface into contact with the deflection limiter
Data Source
AI summary
A frequency tuned damper including at least one elastic element, and a method for the assembly of such a damper are disclosed. The damper comprises a deflection limiting mechanism arranged to prevent excessive movements of the elastic element if the damper is subjected to large external transient forces. The at least one elastic element forms part of the deflection limiting mechanism.