Durability improvement of automotive V-belt pulley |
| |
Authors: | B Kim Y Kim D M Chun S H Ahn J D Jang |
| |
Institution: | (1) High Safety Vehicle Core Technology Research Center, Inje University, Gyeongnam, 621-749, Korea;(2) Department of Mechanical Engineering, Inje University, Gyeongnam, 621-749, Korea;(3) School of Mechanical and Aerospace Engineering & Institute of Advanced Machinery and Design, Seoul National University, Seoul, 151-742, Korea;(4) Korea Powertrain Co., Ltd., 597-10 Daechun-dong, Dalsea-gu, Daegu, 704-801, Korea |
| |
Abstract: | Improving the durability of an automotive V-belt pulley, which is commonly used in an automotive powertrain to transfer power
to other parts, is discussed. Fatigue life of the original V-belt pulley is predicted based on damage analysis by finite element
analysis (FEA). Stress history of the pulley during operation was found by performing consecutive static analyses on the pulley
as the pulley rotates. Assembly load (due to the tightening of the bolts) and operation load were considered to describe the
actual load conditions in a durability test. The contact condition from the belt was calculated and applied to the surface
of the pulley. Static analyses at 36 different positions of the pulley, every ten degrees of rotation, were performed to determine
the stress history of the pulley during operation. Using stress history data calculated from FE analysis, damage over one
rotation of the pulley was calculated and fatigue life, in number of rotations to failure, was estimated. An improvement to
the durability of the pulley was investigated by modifying the design of the pulley using FE analysis results. Durability
tests for the pulleys used in the analysis were carried out to verify the analytical results. Comparison between analysis
and experimental results showed that analytical results correlated with the experimental results closely. |
| |
Keywords: | Pulley V-belt Fatigue life FE analysis Durability test |
本文献已被 SpringerLink 等数据库收录! |
|