Self-Tuning Lever Vibration Isolation Across Wide Frequencies

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Solution Overview

Problem

Current vibration isolation systems are complex, costly, and require external electrical energy for self-tuning, making them inefficient for wide frequency range vibration isolation and prone to mechanical damage due to fatigue.

Innovation Solution

A self-tuning and self-powered mechanical vibration isolation system using a lever guiding element with wedges or pads that aligns the instantaneous center of rotation to minimize vibration transmission, utilizing input vibrational energy for mechanical adjustments without electronic sensors or actuators.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If active or semi-active systems are used to provide vibration isolation across a wide frequency range, then vibration isolation performance is improved, but device complexity increases due to electronic control equipment

Engineering Contradiction:
Improvevibration isolation across wide frequency rangeVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The lever guiding element automatically adjusts the instantaneous center of rotation in response to vibration frequency changes without external control. The mechanical structure itself performs the adaptation function that would otherwise require electronic sensors, actuators and control circuits, achieving self-service vibration isolation across wide frequency ranges

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces electronic control systems with a purely mechanical solution. The lever guiding element uses mechanical geometry and kinematics to achieve frequency-adaptive vibration isolation, substituting complex electronic systems with simple mechanical components that automatically adjust to varying vibration conditions

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If active or semi-active systems are used for self-tuning operation, then vibration isolation performance is improved, but use of energy increases due to external electrical energy input

Engineering Contradiction:
Improveself-tuning operationVSAvoidelectrical energy input
Core Design Contradiction:
Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The lever guiding element utilizes the vibration energy itself to drive the adjustment mechanism. The system is self-powered, using the mechanical energy from the vibration to automatically position the instantaneous center of rotation, eliminating the need for external electrical power sources while maintaining self-tuning capability

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent employs mechanical vibration as the driving force for the self-tuning mechanism. The lever guiding element converts vibration energy into positional adjustments of the instantaneous center of rotation, using the harmful vibration energy productively to achieve adaptive vibration isolation without external power input

Inventive Principle:
Principle #18Mechanical vibration

3Object-affected harmful factors

If conventional vibration isolation systems are used, then vibration transmission is reduced, but reliability decreases due to mechanical damage from fatigue

Engineering Contradiction:
Improvevibration transmissionVSAvoidmechanical damage resistance
Core Design Contradiction:
Object-affected harmful factorsVSReliability

Solution Approach 1:

The lever guiding element extracts and isolates the instantaneous center of rotation from the vibration-prone regions. By positioning the instantaneous center through the lever guiding element rather than through fixed bearings or supports, the system removes critical components from the vibration path, reducing fatigue and improving reliability

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The lever guiding element acts as an intermediary between the vibration source and the supported structure. It mediates the vibration transmission by dynamically positioning the instantaneous center of rotation, reducing the direct transmission of harmful vibrations to connected components and thereby decreasing mechanical fatigue and damage

Inventive Principle:
Principle #24Intermediary (Mediator)

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 achieves effective vibration isolation across a wide frequency range without external power, reducing mechanical damage and system complexity, while being cost-effective and environmentally friendly.

Implementation Method 1

Vibrations received from the first region to the lever slide the lever with respect to the hinges along one first axis and bring the instantaneous center of rotation under the second hinge

Methodology Applied
Scientific EffectVibration: Vibration

Data Source

PatentUS12013007B2Vibration isolation system
Publication Date: 2024.06.18 BOGAZICI UNIVERSITY
  • US12013007B2 patent drawing
  • US12013007B2 patent drawing
  • US12013007B2 patent drawing

AI summary

A vibration isolation system includes at least one first region and at least one second region that are positioned mutually, at least one first hinge member engaged with said first region, at least one second hinge member engaged with said second region and at least one lever connected with said first hinge member and said second hinge member to be at least partially movable in the direction of at least one first axis. Accordingly, at least one lever guiding element is used to minimize vibration transmission between the first region and the second region and said lever guiding element is configured to bring an instantaneous center of rotation depending on the input vibration frequency of the first region to be aligned with the second hinge element attached to the second region which is required to be protected from vibration.