Vertical Vibration Isolation via Buckling and Sliding Mechanisms
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing nonlinear vibration isolation systems face limitations due to interference with precision instruments and complex structural designs, restricting their practical application in reducing vertical vibration impacts on sensitive equipment.
Innovation Solution
A vertical vibration isolation system utilizing a bearing base with a motion guide mechanism and arc-shaped sliding channels, combined with buckling elements that deform and slide to provide nonlinear resilience, reducing vertical vibration impacts through a combination of buckling and sliding mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electromagnetic springs and magnets are used in vibration isolation systems, then vibration isolation effect is improved, but interference with precision instruments occurs and application scope is limited
Solution Approach 1:
The patent extracts and removes the electromagnetic components (magnets and electromagnetic springs) from the vibration isolation system. Instead, it uses purely mechanical elements: buckling elements with arc-shaped sliding channels that provide nonlinear stiffness through geometric constraints. This extraction eliminates the harmful electromagnetic interference while maintaining vibration isolation functionality through mechanical means alone.
Solution Approach 2:
The patent replaces the electromagnetic field-based vibration isolation mechanism with a purely mechanical system. The buckling elements with arc-shaped sliding channels create nonlinear mechanical stiffness that isolates vibrations without requiring electromagnetic fields. This substitution eliminates interference with precision instruments while achieving the same vibration isolation objective through mechanical principles.
2Reliability
If nonlinear vibration isolation systems are designed to achieve wide frequency range isolation, then isolation effect is improved, but structural complexity increases
Solution Approach 1:
The patent employs arc-shaped sliding channels with specific curvature radii to achieve nonlinear stiffness characteristics. The curved geometry of the sliding channels creates the desired nonlinear force-displacement relationship without requiring complex multi-component structures. By optimizing the arc radius and channel geometry, the system achieves wide frequency range isolation using a relatively simple and elegant structural design.
Solution Approach 2:
The patent achieves wide frequency range vibration isolation by adjusting key geometric parameters of the buckling elements and arc-shaped sliding channels, such as arc radius, channel depth, and element dimensions. By varying these parameters, the nonlinear stiffness characteristics can be tuned to achieve optimal isolation performance across different frequency ranges, avoiding the need for complex adaptive or multi-stage systems.
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 reduces vertical vibration impacts on isolated objects by providing nonlinear resilience, avoiding damage and enhancing the isolation effect without the need for permanent magnets or complex designs, thus expanding the application scope for precision instruments and apparatuses.
Implementation Method 1
a plurality of buckling elements, each of which has a top portion movable with the upper platform, a bottom portion slidably disposed at a respective one of the arc-shaped sliding channels, and a body portion between the top portion and the bottom portion. When the upper platform moves along the vertical direction with respect to the lower fundament, the top portions of all the buckling elements are brought into movement along the vertical direction synchronously with the upper platform to cause different degrees of buckling deformation in the body portions of the buckling elements.
Implementation Method 2
When the buckling elements are forced into a predetermined degree of buckling deformation, the bottom portions of the buckling elements slide to an equilibrium position along the arc-shaped sliding channels.
Data Source
AI summary
The vertical vibration isolation system of the present invention includes a bearing base, a guide rail assembly and a plurality of buckling elements. The bearing base has an upper platform that can move along a vertical direction. The guide rail assembly surrounds the bearing base and has a plurality of arc-shaped sliding channels. The top portion of each buckling element can move with the upper platform, while the bottom portion of each buckling element is slidably connected to the corresponding arc-shaped sliding channel. The vertical displacement of the upper platform would cause different degrees of buckling of the buckling elements and also induces sliding motion of the bottom portion of the buckling elements along the arc-shaped sliding channels. Accordingly, the vertical vibration isolation system can provide nonlinear restoring force by buckling and sliding mechanisms so as to exhibit vertical vibration isolation effect.