Design Formulae for Elliptical Cross-Section Helical Springs

[+] Author and Article Information
Kosuke Nagaya, Sadahiko Takeda

Faculty of Engineering, Gunma University, Kiryu, Gunma 376, Japan

Yasuo Hirata

Olimpus Optical Co. Ltd, Nishi Sinjyuku 1-22-2, Tokyo, Japan

Toyoaki Tsurumi

Toshiba Co. Ltd, Shibaura, Minatoku 1-1, Tokyo, Japan

Ken-ichi Nagai, Katsuya Tanifuji

Faculty of Engineering, Niigata University, Niigata 950-21, Japan

J. Mech. Des 114(4), 667-669 (Dec 01, 1992) (3 pages) doi:10.1115/1.2917058 History: Received August 01, 1991; Online June 02, 2008


The maximum stress in elliptical cross-section coil springs with a certain aspect ratio becomes small as compared to the other springs used in practical machines. This article presents a simplified stress expression for designing elliptical cross-section coil springs. The stresses obtained by the present design formula are compared with those by calculated using numerical methods. It is ascertained that the present formula is applicable to design the elliptical cross-section coil springs.

Copyright © 1992 by The American Society of Mechanical Engineers
Topics: Design , Formulas , Springs
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