Panel structure

JP7875064B2Active Publication Date: 2026-06-17SUBARU CORP
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
SUBARU CORP
Filing Date
2022-07-25
Publication Date
2026-06-17

AI Technical Summary

Benefits of technology

【0013】 本発明によれば、骨格枠に保持されているパネル部に設けた制振部を、振動エネルギを中央部へ導く渦巻状ビード部と、この渦巻状ビード部の中央に設けた速度比例型減衰器とで構成し、渦巻状ビード部に流入する振動エネルギを中央部へ集めるようにしたので、振動エネルギの伝搬経路をコントロールすることが可能となり、パネル設計の自由度を増すことができる。更に、渦巻状ビードの中央部に速度比例型減衰器を設けたので、中央部に集めた振動エネルギを効率良く減衰させることができる。

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Abstract

To make it possible to augment the freedom in designing a panel, and efficiently attenuate vibration energy which flows into the panel.SOLUTION: A panel structure 21 includes a skeleton frame 22, a panel 6a retained while being enclosed by the skeleton frame 22, and a vibration controller 23A that is incorporated in the panel 6a and attenuates vibration energy which propagates from the skeleton frame 22. The vibration controller 23A includes spirally-formed beads 24 that guide the vibration energy into the center, and a speed proportional attenuator 25 disposed in the center of the spirally-formed beads.SELECTED DRAWING: Figure 6
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Claims

1. The skeletal frame, The panel portion is held within the aforementioned skeletal frame, A vibration damping unit provided in the panel portion to attenuate vibration energy transmitted from the skeletal frame, In a panel structure having, The vibration damping section, A spiral bead section that guides the aforementioned vibration energy to the central part, A velocity-proportional attenuator is provided in the center of the spiral bead portion. Composed of, The spiral bead portion is formed on both sides of the panel portion by alternately creating uneven surfaces on both sides. The cross-sectional area of ​​the spiral bead portion decreases as it moves towards the center. A panel structure characterized by the following features.

2. The aforementioned spiral bead portion is formed in the form of a logarithmic spiral or a clothoid spiral. The panel structure according to claim 1, characterized in that it is a panel structure.

3. The vibration damping section is provided in one part of the panel, or in at least one of each quadrant obtained by dividing the panel into quadrants from the first quadrant to the fourth quadrant. The panel structure according to claim 1, characterized in that it is a panel structure.