Damping Cylinder Radial Projections to Eliminate Mount Clearance
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Solution Overview
Problem
Current damping assemblies experience degradation in damping performance due to manufacturing tolerances leading to clearance between the support and the mount, resulting in a drop in stiffness and reduced vibration and shock absorption qualities.
Innovation Solution
Incorporating radial projections on the damping cylinder that protrude from either the inner or outer lateral surface of the damping cylinder, with a thickness greater than the manufacturing tolerance sum, to fill the clearance and maintain consistent damping performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If standard manufacturing tolerances are used for the support and mount, then manufacturing cost and complexity are reduced, but clearance between the support and mount increases causing stiffness degradation
Solution Approach 1:
The patent introduces a radial projection on the damping cylinder with a specific thickness parameter (e.g., 0.5mm) that is greater than the manufacturing tolerance sum. This parameter change ensures that the projection always bridges the clearance gap between the support and mount, maintaining stiffness without requiring tighter tolerances on the base components.
Solution Approach 2:
The radial projection acts as an intermediary element between the support and mount. It physically bridges the clearance gap that exists due to manufacturing tolerances, ensuring continuous contact and force transmission. This intermediary structure eliminates the harmful effect of clearance without requiring the support and mount to be manufactured with excessive precision.
2Ease of manufacture
If clearance between support and mount is allowed, then manufacturing is simplified, but damping performance degrades due to stiffness drop at origin
Solution Approach 1:
By defining the radial projection thickness as a specific parameter greater than the sum of manufacturing tolerances, the patent ensures that the projection always contacts both the support and mount regardless of dimensional variations. This parameter specification maintains damping performance consistency while allowing standard manufacturing tolerances to be used.
Solution Approach 2:
The radial projection is designed in advance with sufficient thickness to compensate for potential clearance gaps. This beforehand cushioning approach ensures that even with standard manufacturing tolerances, the projection will bridge the gap and maintain proper force transmission, preventing performance degradation before it can occur.
3Reliability
If radial projections with thickness greater than tolerance sum are added, then damping performance consistency is improved, but device complexity increases
Solution Approach 1:
Instead of modifying the entire damping cylinder or requiring tight tolerances on all components, the patent applies the radial projection only at the specific location where clearance bridging is needed. This local modification maintains damping performance consistency without significantly increasing overall device complexity.
Solution Approach 2:
The radial projection can be implemented as a separate feature or component that is integrated into the damping cylinder. This segmentation allows for easier manufacturing and assembly, as the projection can be added through processes like molding, machining, or attachment, rather than requiring complex precision machining of the entire cylinder.
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 radial projections compensate for manufacturing variations, maintaining consistent damping performance and simplifying the manufacturing process by eliminating the need for excessive tolerance control, thereby ensuring equivalent damping without degradation around the origin.
Implementation Method 1
The radial projections compensate for manufacturing variations, maintaining consistent damping performance
Implementation Method 2
The damping provided by such an assembly may be measured, in particular, by a radial curve representing an applied force as a function of the radial displacement
Implementation Method 3
damping assembly to absorb and/or damp vibrations and/or shocks between mechanical parts
Data Source
AI summary
A damping assembly includes a mount comprising a circular opening and a support configured to be inserted into said circular opening of said mount. The support comprises a baseplate having a cylindrical outer lateral surface. The support comprises a damping cylinder comprising an inner lateral surface surrounding the outer lateral surface of said base and an outer lateral surface configured to be held on said circular opening. Said damping cylinder comprises at least one radial projection protruding from the inner lateral surface of said damping cylinder or from the outer lateral surface of said damping cylinder.