To increase transmission loss of travel noise.SOLUTION: A vehicle panel structure includes a double wall panel 5 in which a core material 51a having at least a predetermined thickness across the whole in-plane directions of an outer wall 21 and an inner wall 22 is encapsulated between the walls 21, 22 opposite to each other, where a gas of which bulk modulus E is lower than air in steady state is encapsulated into a core layer 50.SELECTED DRAWING: Figure 1
【課題】走行音の透過損失を向上させること。【解決手段】対向する外壁21と内壁22との間に、これら壁21,22の面内方向全体に渡って少なくとも所定の厚みを有するコア材51aが封入された二重壁パネル5からなり、コア層50に体積弾性率Eが定常状態の空気より低い気体を封入させた。【選択図】図1
VEHICLE PANEL STRUCTURE
自動車のパネル構造
2019-08-08
Patent
Electronic Resource
Japanese