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 specific surface area indicating a surface area relative to a unit volume of the core material 51a is set to 20000 (mm/cm) or more.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から成り、コア材51aの単位体積に対する表面積を示す比表面積を、20000(mm2/cm3)以上に設定した。【選択図】図1
VEHICLE PANEL STRUCTURE
自動車のパネル構造
2019-08-08
Patent
Electronic Resource
Japanese