Lubrication and its role in gear-failure analysis
When gears fail, it is most often due to fatigue and overloading. The most common form of distress and failure […]
Multi-sensor metrology advances
Demand for accurate gears delivered on tight schedules is increasing. To keep pace, technology is continually advancing, enabling manufacturers to […]
Nonlinear dynamic characteristic analysis of a coated gear transmission system
Coatings can significantly improve the load-carrying performance of a gear surface, but how they affect the vibration characteristic of the […]
Effects of Asymmetric Cutter Tip Radii on Gear Tooth Root Bending Stress
By Dr. Abdullah Akpolat, Dr. Nihat Yildirim, Burak Sahin, Omer Yildirim, Bulent Karatas, and Fatih Erdogan Tooth root fillet is the […]
Extending gear life in demanding applications
Although gears and other precision components are generally made of hardened steel or metal alloys, those used in high load […]
The Impact of Surface Condition and Lubricant on Gear Tooth Friction
The most exhaustive experimental study quantifying gear tooth friction is by Yoshizaki [1], in which spur gears with various geometries […]
The Efficiency of a Simple Spur Gearbox — Thermally Coupled Lubrication Model
Introduction The efficiency of drivetrain components is quickly becoming a significant research area pushed by the intensifying quest for improved […]
Optimization of Gear Tooth Contact by Helix Angle Modification
Introduction Gears that are smaller, cheaper, and equipped with more efficient power transmission are the ongoing objective of gear designers. […]
Gear Failure Analysis and Lessons Learned in Aircraft High-Lift Actuation
The high lift system of an aircraft, including trailing and/or leading edge slats/flaps, increases lift for takeoff, controls flight during […]
Improving Gearbox Reliability by Analyzing Axial Cracking on Bearings and Recommending a Solution
Introduction As the growth of wind energy continues, the average size and capacity of wind turbine generators is also increasing. […]
Using Integrated Computational Material Science to Create Virtual Simulations of Gear Fatigue Lifetime
Material science is the oldest of all science and engineering disciplines. It is not an overstatement to say that materials […]
Crack Testing and Heat Treat Verification of Gears Using Eddy Current Technology
While eddy current technology was initially developed for testing of bar, tube, and wire, advances in electronics, automation, and coil […]
