Design of Helical Compression Springs
Abstract
In this mathematical study on helical spring design, three basic types of load requirements are distinguished and treated individually: (1) the load at assembled height; (2) the load at minimum compressed height; and (3) the energy content of the spring. Conventional load and stress deflection formulas are modified by the replacement of dependent variables with independent values. The ratio of the final spring deflection over the working stroke is formulated to show the variation of the final stress with various required load-space conditions. Optimum design parameters are established to minimize the final operating stress value. Direct and simplified analytical design procedures are developed for round wire and rectangular wire compression springs. Also presented are nomographs for use as design aids and detailed numerical design examples. This study combines design characteristics and stress advantages of nested spring systems versus a single spring for equivalent load conditions.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1979
- Accession Number
- ADA077113
Entities
People
- Henry P. Swieskowski
Organizations
- United States Army Armament Research, Development and Engineering Center