Gears and Bearings

Courtesy: EASA
Motors, Drives March 5, 2021

Recognize service conditions for motors and generators

It is important to understand the differences between the usual service conditions most motor designs assume and unusual service conditions that lead to unreliable operation and costly shutdowns

By Thomas H. Bishop, P.E.
Courtesy: AutomationDirect
Motors, Drives March 4, 2021

Improved stepper motor systems support more applications

Stepper motor systems deliver more precision than standard variable-speed motors without the expense and complexity of servo motors, and newer high bus voltage options provide additional flexibility. See 5 motor technologies, common uses.

By Joe Kimbrell
Courtesy: Yaskawa America Inc.
Motors, Drives February 17, 2021

Direct drive vs. geared rotary servomotor: A quantification of design advantage: Part 3

Direct-drive servomotors are becoming more common as range and availability expands for use in many machine and motor applications.

By Dakota Miller and Bryan Knight
Source: Moisture Control and Insulation Systems in Buildings, Chilled Water Pipes and Underground Pipes by William Lotz.
Project Management February 4, 2021

Address moisture control in metal buildings

The right insulation system in metal buildings can prevent dire consequences

By William Lotz, P.E. and Joseph Haugh
Courtesy: Bob Vavra, CFE Media
Motors, Drives December 26, 2020

Grant given to design ultrahigh temperature tolerant alloys

A team of Texas A&M University researchers are investigating a class of metals, called refractory high entropy alloys (RHEAS), that can withstand higher operating temperatures.

By Dharmesh Patel
Courtesy: Yaskawa America
Motors, Drives December 4, 2020

Direct drive vs. geared rotary servomotor: A quantification of design advantage: Part 1

A geared servomotor can be useful for rotary motion technology, but there are challenges and limitations users need to be aware of.

By Dakota Miller and Bryan Knight
Courtesy: Interact Analysis
Motors, Drives November 4, 2020

Motor, industrial gears market expected to recover quickly from COVID-19 impact

In spite of the losses due to the COVID-19 pandemic, the geared motors market is expected to have a period of sustained recovery and growth over the next few years.

By Interact Analysis
Courtesy: Toshiba International Corp.
Motors, Drives November 2, 2020

How to match drives (VFDs, VSDs) to the motor

Size a variable-speed drive (VSD) for the application, and ask if a general-purpose drive will do or if more embedded intelligence is needed. Do you need a VSD, variable frequency drive (VFD) or adjustable speed drive (ASD)? (Trick question)

By Joshua Jagnanan
Students work during the summer with Purdue’s Mach 6 quiet wind tunnel. The tunnel will be involved in research by a new multidisciplinary hypersonics program. Courtesy: John Underwood, Purdue University
Labs, Research October 27, 2020

Universities team up to improve hypersonics research and facilities

Purdue University and the University of Notre Dame are pairing their hypersonics research and facilities to improve the next generation of high-speed vehicles capable of flying beyond Mach 5.

By Brian Huchel
Courtesy: Sulzer
Mechanical October 23, 2020

Updating legacy rotating equipment

Retaining legacy equipment is a cost-effective way to minimize capital expenditure, provided efficiency and reliability can be upheld.

By Troy Rodger