Design of a helical gear set with adequate linear tip-relief leading to improved static and dynamic characteristics

Zhi Gen Wang, Yi Cheng Chen

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

This study aims to improve the static and dynamic characteristics of a helical gear pair by optimizing the parameters of linear tip-relief. The static analysis intends to reduce the maximum contact stress to extend the service life of the gear pair, while the dynamic analysis attempts to reduce the dynamic transmission error (DTE). First, mathematical models of a helical gear pair generated by rack-cutters with linear tip-relief were developed based on the theory of gearing. Tooth contact analysis enabled us to estimate static transmission error and contact pattern of the gear pair under various assembly errors. Additionally, the contact stress contour and mesh stiffness were calculated through loaded tooth contact analysis by using finite element analysis. A dynamic model of the helical gear pair was also developed to simulate the dynamic characteristics under various rotational speeds, including DTE and vibration energy. Finally, the simulation results revealed that the high contact stress, DTE, and vibration energy of the original helical gear set were successfully reduced by the improved linear tip-relief parameters.

Original languageEnglish
Article number103742
JournalMechanism and Machine Theory
Volume147
DOIs
StatePublished - May 2020

Keywords

  • Contact stress
  • Dynamic transmission error
  • Helical gear
  • Linear tip-relief
  • Load tooth contact analysis
  • Vibration energy

Fingerprint

Dive into the research topics of 'Design of a helical gear set with adequate linear tip-relief leading to improved static and dynamic characteristics'. Together they form a unique fingerprint.

Cite this