Manual Vehicle Window Support With Viscoelastic Vibration Damping
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Solution Overview
Problem
In single-passenger compact vehicles with manually raised and lowered window panels, vibrations occur at the lower limit position due to the lack of stabilization, which can lead to discomfort and potential damage during vehicle travel.
Innovation Solution
Incorporating a lower support with a groove and an anti-vibration member having viscoelastic properties, such as rubber, to stabilize and reduce vibrations of the window panel by housing its lower edge and providing lateral support, thereby preventing direct contact with the support structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If a window panel is manually raised and lowered without an elevating device, then vehicle weight is reduced, but vibration occurs at the lower limit position
Solution Approach 1:
An anti-vibration member made of viscoelastic material is introduced as an intermediary between the window panel and the lower support. This mediator absorbs vibrations while maintaining the manual operation capability, thus reducing vehicle weight while improving window panel stability at the lower limit position
Solution Approach 2:
The lower support structure is modified by adding a groove that changes the geometric parameters of the support system. This groove accommodates the anti-vibration member and provides a dedicated space for vibration absorption, maintaining weight reduction while enhancing stability
2Ease of operation
If the window panel is not locked at the lower limit position, then manual operation is simplified, but vibration increases during vehicle travel
Solution Approach 1:
The anti-vibration member serves as a mediator that allows the window panel to move freely for easy operation while simultaneously dampening vibrations during vehicle travel. The viscoelastic material provides both freedom of movement and vibration absorption
Solution Approach 2:
The groove in the lower support, which initially appears as a simple structural feature, is converted into a beneficial element by housing the anti-vibration member. This transforms the potential harm of vibration into an opportunity for vibration absorption and energy dissipation
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 solution effectively reduces window panel vibrations during travel by stabilizing the panel at the lower limit position, ensuring smooth operation and minimizing the risk of damage.
Implementation Method 1
an anti-vibration member having viscoelasticity, disposed in the groove of the lower support, and configured to hold the window panel from both sides of the window panel
Implementation Method 2
configured to hold the window panel from both sides of the window panel... vibration of the window panel can be reduced
Data Source
AI summary
A vehicle may include a vehicle body, a door, a window frame, a window panel, a lower support and an anti-vibration member. The window panel may be provided in the window frame, configured to be manually raised and lowered, and supported to movable between an upper limit position where the window panel closes an opening of the window frame and a lower limit position where the window panel opens the opening of the window frame. The lower support may include a groove. The groove may be configured to receive a lower edge of the window panel when the window panel is located at the lower limit position. The anti-vibration member may have viscoelasticity, disposed in the groove of the lower support, and configured to hold the window panel from both sides of the window panel.