Preloaded Helical Rope Damping Layout for Stable Load Centering

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Solution Overview

Problem

Existing damping systems lack the ability to securely fix and stabilize devices under varying loads while minimizing residual accelerations and ensuring quick return to the resting state after load removal.

Innovation Solution

A damping system comprising at least three damping and spring arrangements with elongated strip end pieces connected by a helically arranged wire or rope, where the end pieces are biased and arranged to intersect at a common point, providing adjustable preload for secure alignment and load distribution.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If damping and spring arrangements are arranged parallel to each other on opposite sides of base plates, then the system provides basic damping and spring functions, but the system lacks the ability to securely fix and stabilize devices under varying loads while minimizing residual accelerations

Engineering Contradiction:
Improvestability under varying loadsVSAvoidsystem configuration
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system divides the damping function into multiple independent damping and spring arrangements (at least three), each with its own longitudinal axis that intersects at a common point. This segmentation allows each arrangement to independently handle loads from different directions, providing stable support under varying loads while maintaining system reliability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent transitions from a two-dimensional parallel arrangement to a three-dimensional configuration where multiple damping arrangements with different longitudinal axes intersect at a common point. This spatial arrangement enables the system to handle multi-directional loads and provide stable support from multiple angles, resolving the contradiction between reliability and complexity.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Adaptability or versatility

If end pieces are offset from each other along the longitudinal axis, then preload can be implemented with adjustable levels, but the alignment precision required increases

Engineering Contradiction:
Improvepreload adjustmentVSAvoidend piece alignment
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The end pieces are pre-offset from each other along the longitudinal axis during manufacturing or assembly, creating a predetermined preload condition. This preliminary action allows the system to achieve the desired preload level without requiring complex adjustment mechanisms during operation, balancing adaptability with manufacturing precision.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent utilizes changes in the offset parameter (distance between end pieces along the longitudinal axis) to control the preload level. By adjusting this geometric parameter, the system achieves adaptable preload levels while maintaining reasonable alignment requirements, as the offset creates a mechanical lever effect that amplifies the preload.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If multiple damping and spring arrangements are used with intersecting longitudinal axes, then device alignment and load distribution improve, but the number of components and assembly complexity increase

Engineering Contradiction:
Improvedevice alignmentVSAvoidnumber of components
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple damping and spring arrangements into a unified system where all longitudinal axes intersect at a common point. This merging approach allows the individual components to work together synergistically, providing improved device alignment and load distribution while sharing common mounting points and structural elements, thereby reducing overall system complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The common intersection point serves multiple functions: it acts as the mounting point for all damping arrangements, the alignment reference for device positioning, and the load distribution center. This multi-functionality reduces the need for separate alignment mechanisms and mounting structures, balancing the benefits of multiple components with reduced overall complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 system effectively stabilizes and centers devices under load, minimizing horizontal movement and rotation, and allows for quick return to the resting state after load removal by utilizing the intersection point and prestressing for uniform load distribution.

Implementation Method 1

a wire or rope arrangement with at least one helically arranged wire or rope piece

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Implementation Method 2

damping and spring arrangements

Methodology Applied
Scientific EffectVibration damping: Damping

Implementation Method 3

the at least three damping and spring arrangements are each pre-tensioned in the direction of their longitudinal axis

Methodology Applied
Scientific EffectElastic restoring force: Elasticity

Data Source

PatentEP3521652B1Damping system
Publication Date: 2024.04.03 SEBERT SCHWINGUNGSTECHN
  • EP3521652B1 patent drawingFigure 1

AI summary

The invention relates to a damping system comprising at least one damping and spring arrangement (2), preferably at least three damping and spring arrangements (2), with two end pieces (20, 21) designed as elongated strip elements with a longitudinal axis (L), and with a wire or rope arrangement (22) comprising at least one helically arranged wire or rope piece (15, 16), wherein the end pieces (20, 21) are connected to each other by means of the wire or rope arrangement (22), wherein the at least one damping and spring arrangement (2) is pre-tensioned in the direction of the longitudinal axis (L).