Gear Damage and its Influencing Factors
Influencing Factors – Testing Procedures – Calculation Methods – Prevention – Damage Appearance
Introduction
Gearboxes are used to adjust the rotational speed and torque of drive and output devices, with gears as the central machine elements. They should perform their duties in a low-noise, low-maintenance, and most of all damage-free manner over the lifetime of the machine. Breakdowns due to damage often lead to high costs.
Target Audience
Employees of gearbox companies and technical departments: designers, production engineers, maintenance and repair specialists, and experts.
Main Topics
- Gear damage
- Influencing factors
- Testing procedures
- Calculation methods
- Avoidance
- Examples
Objectives
- Reliable detection and classification of gear damage
- Information on the main damage influencing factors
- Calculation approaches for quantitative assessment of damage risks
- Systematic approach to failure analysis
- Quantitative and qualitative assessment of ways to prevent damage
Contents
- Foundations of gear stress and failure analysis procedures (modified root cause analysis)
- Seizure, wear, micro-pitting, fissures, tooth root and flank fracture of spur gears
- Appearance and causes of damage, primary influencing factors, testing methods, calculation principles, and practical examples
- Fundamentals of materials and lubricants
Instructors
Dr. Thomas Tobie
Technical University of Munich, Gear Research Centre (Forschungsstelle für Zahnräder und Getriebebau, or FZG)
Michael Geitner
TU München, Forschungsstelle für Zahnräder und Getriebebau (FZG)