号数	ばね論文集51号（2006年）
ページ数	pp.35-43
種類	論文
論文名	コイルドウェーブスプリングのばね特性と応力の実用計算法
Title	A Practical Calculating Method on Spring Characteristics　and Stresses of Coiled Wave Springs
著者	高橋英輝1) 川村直子1) 久納孝彦1)
Author	Hideki TAKAHASHI 1) Naoko KAWAMURA 1) Takahiko KUNOH 1)
抄録
Abstract	"Coiled wave springs (CWS) are considered as multiple layered waved washers. They are light but powerful in limited spaces. In recent years, CWS have been applied to clutches of automobiles and expected to be applied to other uses. The formulas on the spring rates and stresses of CWS have been presented by an American spring maker of Smalley Steel Ring Company, Nishio, and Japan Spring Manufacturers Association (for short, JSMA). But none of them are practical, because the accuracy is not enough. Moreover the derivations of the formulas are not clear in the case of Smalley and JSMA. It has been observed that CWS show nonlinear spring characteristics in large deflection, however, the cause has not been made clear. In this research, spring rates and stresses for CWS are analyzed theoretically. A cause of the nonlinear spring characteristics is made clear, too. Then empirical formulas on the spring rates and stresses are derived by comparing the theoretical results with experiments and FEM analysis."
著者の所属	1)慶應義塾大学
Belonging	1)Keio University
Key Words	Coiled wave spring, Nonlinear spring, Spring characteristics, Stress analysis, FEM analysis