Official Answer
Answer
ウェーブスプリング が自由高さ $H$ から作業高さ $H_w$ まで圧縮されると、波は平らになり、平均直径 $D_m$ が拡大します。 The expansion $\Delta D$ can be approximated by $\Delta D = \frac{0.051(h^2 - t^2)N^2}{D_m}$. If the clearance between the spring's Outer Diameter (OD) and the housing bore is insufficient, the spring will bind, leading to an exponential increase in spring rate and potential permanent deformation. Engineers must specify a bore diameter $D_{bore} > OD_{max} + \Delta D$ to ensure the spring functions as a simple beam without secondary radial constraints.
