公开(公告)号：EP2212581B1

公开(公告)日：2017-12-13

申请号：EP08843263.8

申请日：2008-10-08

Applicant: NHK Spring Co., Ltd.

Inventor： NISHIZAWA, Shinichi ,  SAKAI, Tadashi

IPC: F16F1/04 ,  B21F35/00 ,  F16F1/00 ,  G06F17/50 ,  B60G11/15

CPC classification number: G06F17/5018 ,  B60G11/15 ,  B60G2202/12 ,  F16F1/04

Abstract: A finite element analysis (FEA) based coil spring design method that utilizes a reverse engineering based concept. The method involves first designing a desired jounce profile, which is typically an output in the conventional FEA based design, and then reversely determining the corresponding free profile necessary for manufacturing a spring having desired performance specifications.