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 […]
Application of ICME to Optimize Metallurgy and Improve Performance of Carburizable Steels
Introduction QuesTek Innovations LLC (“QuesTek”) of Evanston, IL uses its proprietary Materials by Design® expertise and technology in conjunction with […]
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 Resonance Analysis and Experimental Verification Using Rapid Prototyped Gears
Weight reduction is of great importance in the design of gearing for aerospace applications. Natural resonance responses of the gear […]
Upgrading and Testing a 72,000 H.P. Gearbox
Another Day at the Gear Hospital Over the past 40 years, we have had many gearboxes come to our door […]
Proactive Contamination Control for Industrial Gearing
No matter what industry you serve, there’s a good chance that gears and gearing are critical to your process. In […]
Principal Design Parameters Of Gearing With Non-Parallel Axes Of Rotations
This paper pertains to gearing with non-parallel axes of rotation of the driving and the driven members. Examples of the […]
Finite Element Analysis of a Floating Planetary Ring Gear with External Splines
The design of a planetary ring gear is always a challenge due to the contradictive requirements it must comply with. […]
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 […]
Dynamic Simulations of Radial Lip Seals Followability in an Industrial Gearbox
Industrial gear units are widely used in power transmission systems. They are composed of shafts, gears, rolling elements bearings and […]
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. […]
The Anatomy of a Lubrication Erosion Failure: Causation, Initiation, Progression, and Prevention-Part II
As a result of our evaluation of the pit type defects observed on all of the Cameron Pinion Shaft teeth, […]
ONLINE EXCLUSIVE: Helical or Not Helical? How Helical Gears Impact the Performance of Planetary Systems
This paper explains the differences and the effects of zero-helix-angle and non-zero-helix-angle gears in planetary gear systems. As a conclusion, […]
Modernization of Main Helicopter Gearbox with Asymmetric Tooth Gears
Application of asymmetric tooth gears for aerospace propulsion drives allows for considerably increased power transmission density, potentially increasing their load […]
The Anatomy of a Lubrication Erosion Failure: Causation, Initiation, Progression, and Prevention: Part I
Material science is the oldest of all science and engineering disciplines. It is not an overstatement to say that materials […]
Striving for High Load Capacity and Low Noise Excitation in Gear Design
Many dimensions of the gears and the toothing are determined that have significant influence on load capacity and noise excitation. […]
Contact Analysis for Planets in KISSsoft
KISSsoft’s contact analysis software is widely used because it calculates a wide variety of characteristics of interest for gears that […]
Precision Planetary Servo Gearheads
Precision planetary gearheads are frequently used in conjunction with such servo motors in order to: balance inertial loading conditions seen […]
Validation of a Model of the NREL Gearbox Reliability Collaborative Wind Turbine Gearbox
Wind power has grown to be an important part of the energy mix in the U.S. In 2012 alone, the […]
Dynamic Analysis of a Cycloidal Gearbox Using Finite Element Method
The cycloidal style of speed reducer is commonly used in many industrial power transmission applications. This type of mechanism, known […]
