Lead or Helix? That is the Question
Here’s the scenario: the company is developing a new application for helical internal gears. The first trials are going well, […]
An Advanced Approach to Optimal Gear Design
The theory and practice of gear design is rich with examples of successful and sometimes outstanding combinations of various mathematical, […]
Static and Fatigue Calculations of Wind Turbine Gearboxes: Part II
Wind turbine manufacturers have a vital interest in carrying out gearbox calculations on their own, and for multiple reasons: • […]
Static and Fatigue Calculations of Wind Turbine Gearboxes: Part I
1 Abstract Wind turbine manufacturers have a vital interest in carrying out gearbox calculations on their own, and for multiple […]
Microgeometry and Bias in Helical Gear Noise Excitations
The prediction of gear noise may normally be treated as a classical source/path/receiver problem. Usually the excitation occurs in the […]
A Revelation in Advanced Software Technology
Bryant Grinder has always been at the forefront of grinding machine technology. Founded in Springfield, Vermont, in 1909, the company […]
Direct Design for High-Performance Gear Transmissions
This paper presents a unique methodology for designing gears to enhance strength and life while allowing size and wear reduction. […]
Estimating Gear Fatigue Life
Fatigue failure of gears can lead to the catastrophic failure of equipment, taking into account that gears are important elements […]
Planetary Gear Parametric Instability
Parametric instability is investigated for planetary gears where the fluctuating stiffness results from the changing contact conditions at the multiple […]
Bending Fatigue of Surface Densified Gears
Surface densified powder metal gears and conventional wrought steel gears were tested using a pulsator and a back-to-back gear tester […]
Determining Gear Efficiency
Abstract: This paper presents an original method for determining the efficiency of the gear. The originality of this method relies […]
The Methadology of Modified Crowning
Is there anything that can still be considered new in bevel gear tooth theory? Most experts in the transmission layout […]
Calculating Tooth Form Transmission Error
The variation of the tooth meshing stiffness is a primary source of noise. In production lines for gear manufacturing in […]
Engineered Heat Treatment for Stronger Aerospace Gears
It is well established that carburization of low alloy steels promotes compressive residual surface stress upon quenching, and that compressive […]
Defeating Tooth Flank Deformation
Every gear is subject to torque, resulting in elastic deformation of the toothed parts as well as the entire rotor […]
Gear Mesh Misalignment
Gear mesh misalignment may result in shifts in the load distribution of a gear pair that results in increasing contact […]
Calculating the Inverse of an Involute
The involute tooth form is the only tooth form that provides true conjugate action normal to the tangency of the […]
Gearing Up for Improved Performance
Innovative engineering design, advanced materials, and top of the line components can yield significant improvements in gearbox efficiency, reliability, and […]
An Animated Approach to Plotting Profiles
Trochoid Spiral (TS) and Epitrochoidal Spiral (ETS) curves and special flash animations were developed by the author in 2004 and […]
Making a Case for PVD Recoating Systems
Muncie Power Products, Inc., of Tulsa, Oklahoma, has been in the auxiliary power business since 1935 and started manufacturing Power […]
