Spiral Spring Electrode ER Fluid Damper for Stable High Damping
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Solution Overview
Problem
Existing giant electrorheological fluid dampers have issues with instability, liquid leakage, electric leakage, low damping utilization rate, complex structure, and dependence on additional rigid elements, limiting their effectiveness and independence.
Innovation Solution
A squeeze mode giant electrorheological fluid damper design featuring a support structure with guide shafts and a container with spiral spring pieces acting as electrodes, eliminating the need for additional rigid elements by using insulating and conductive materials to generate a controlled electric field within the damper, allowing for independent operation and high fluid utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a plurality of electrodes are connected with a cylinder wall through list superposition, then the damping force can be generated, but the instability of equipment is increased and hidden dangers of liquid leakage and electric leakage exist
Solution Approach 1:
The electrode structure is segmented into two separate spiral spring pieces instead of multiple electrodes connected through list superposition. This segmentation eliminates the complex connections that caused instability and leakage risks, while each spring piece independently generates the necessary electric field for damping force.
Solution Approach 2:
The spiral spring pieces serve as intermediaries that convert electrical energy to mechanical damping force through the electrorheological fluid. The insulating container body acts as a mediator that prevents electric leakage while allowing the electric field to act on the fluid, resolving the contradiction between generating damping force and ensuring equipment stability.
2Stability of the object's composition
If additional rigid elements are used to support the damper structure, then the structural stability is improved, but the device size increases and complexity increases
Solution Approach 1:
The spiral spring pieces perform multiple functions: they provide structural support, generate the electric field for damping, and act as electrodes. This multi-functionality eliminates the need for additional rigid supporting elements, reducing both device size and structural complexity while maintaining stability.
Solution Approach 2:
The supporting structure and electrode system are merged into the spiral spring pieces. These springs simultaneously provide mechanical support and generate the electric field needed for damping operation, eliminating the need for separate rigid supporting elements and reducing overall device complexity.
3Volume of moving object
If the damper uses a compact design without additional rigid elements, then the device size is reduced, but the damping utilization rate may decrease
Solution Approach 1:
The electrorheological fluid's viscosity parameter is dynamically changed by applying electric field through the spiral spring electrodes. This allows the fluid to transition from liquid-like to solid-like state, providing high damping force in a compact volume and achieving high damping utilization rate without increasing device size.
Solution Approach 2:
The giant electrorheological fluid undergoes phase transition from liquid-like to solid-like state when electric field is applied. This phase transition enables the compact damper to generate high damping forces, maintaining high damping utilization rate while keeping the device size small.
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 design achieves stable and controllable damping force with high giant electrorheological fluid utilization rate, reducing size and eliminating the need for additional rigid elements, thereby enhancing operational stability and efficiency.
Implementation Method 1
The giant electrorheological fluid, similar to the electrorheological fluid in properties, the rheological property of the giant electrorheological fluid is multiple times better than that of the electrorheological fluid
Implementation Method 2
the two spiral spring pieces are used for being connected with a positive electrode and a negative electrode respectively to generate an electric field
Data Source
AI summary
A squeeze mode giant electrorheological fluid damper is disclosed. The squeeze mode giant electrorheological fluid damper comprises a support, a container and a connecting structure, wherein the support comprises a bottom plate, guide shafts and a top plate, the guide shaft is vertically fixed on the bottom plate, and the top plate is slidably arranged on the guide shaft; the container comprises a container body and two spiral spring pieces coaxially arranged in the container body, the container body is fixed on the bottom plate, the bottoms of the two spiral spring pieces are fixed to the bottom of the container, the two spiral spring pieces are not in contact with each other and are spaced by 180°; the top of the connecting structure is fixedly connected with the top plate, and the bottom of the connecting structure is fixedly connected with the tops of the two spiral spring pieces.