Gear Dynamics and Gear Noise Short Course
Articles About Gear Dynamics and Gear Noise Short Course
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Calendar of early 2022 events
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With AGVs, a primary bottleneck on productivity is battery life. But when looking at an AGV as a full system, there are plenty of ways this bottleneck can be widened.
Special advertising section featuring mechatronics and motion control.
The complete Product News section from the December 2018 issue of Power Transmission Engineering.
Packaging and material handling applications are reaping the benefits of smaller, smarter and more efficient components.
The complete Industry News section from the December 2019 issue of Power Transmission Engineering.
Staying sane is tough when the world seems so crazy, and having your brain plugged directly into the news cycle doesn't help. I know it's not healthy to keep refreshing my news feed. But the coronavirus has everyone scared, myself included.
I've been reading, watching and listening to a lot of pundits lately -- economic experts, industry experts, stock market experts, you name it -- trying to get some idea of what to expect next. Heh.
The complete Product News section from the October 2018 issue of Power Transmission Engineering.
The complete Product News section from the October 2019 issue of Power Transmission Engineering, featuring new technologies from Timken, Applied Motion Products, LM76, Ogura, Portescap, Ruland Manufacturing, and Heidenhain
The complete Product News section from the March 2018 issue of Power Transmission Engineering.
The complete Industry News section from the September 2017 issue of Power Transmission Engineering.
Part 1: There seems to be a lot of confusion about the voltage standards for motors and why they are structured the way they are. Part 2: The effect of low voltage on electric motors is pretty widely known and understood, but the effect of high voltage on motors is frequently misunderstood.
The complete Product News section from the September 2017 issue of Power Transmission Engineering.
The complete Product News section from the December 2017 issue of Power Transmission Engineering, featuring the latest from SKF, R+W, Brecoflex, Nexen, GÃ¼del, Renold Gears, Hansford Sensors, Ogura Industrial, Igus, Destaco, RÃ¶hm and Iwis.
Oil shear brake technology is the key to quick and reliable test stand development.
Special advertising section focuses on motion control.
Our expert explores standard vs. optimized gears, as well as high contact ratio gearing.
If you can find that magic bullet that will reduce the machining process, you can achieve meaningful efficiency gains. It is imperative that check-weighers or in-motion weighing systems remain both accurate and efficient while attaining a consistently smooth operation because they dynamically weigh products as they move across the belt.
Manufacturers are awesome. Over the past month, we've talked to a lot of manufacturers of gears, bearings, motors, gearboxes, couplings and other mechanical power transmission components. Despite the challenges brought about by the COVID-19 pandemic and the current economic crisis, they've been universally positive and remarkably confident about their current operations and ability to continue through the crisis and after.
The automotive world faces a tremendous change. Autonomous driving and electrification are two big topics in this context that are pushing this change. The demand for higher comfort, higher safety and tightened environmental requirements drive as well the technological change from former mechanical actuations to electro-mechanical systems in new vehicles. This can be observed especially for braking and steering systems.
When it comes to a steel-gear mesh, there are several common standards and design rules on how to reduce noise emissions in the mesh. But if plastic gears are involved, this is no longer the case. The topic of this presentation is to highlight some of the differences between metal-and-plastic gear meshes, i.e. which design strategies can be stated as valid for metal as well as plastic and which are not?
In this paper, the influences of various gear parameters on the mesh stiffness are systematically investigated by using the finite element method. The comprehensive analysis shows that contact ratios are the key factors affecting the fluctuation value of mesh stiffness.
Durability requirements must be balanced with the need for lightweight and low-cost solutions which meet noise and vibration targets whilst also exhibiting excellent efficiency.
This work explains why some idler sets produce so much gear whine. While transmission error must be managed, there is another tool in the gear whine management toolbox.
Motion control systems often combine high power drive signals in close proximity (or even within the same cable) with lower level signals, like encoders. You will often see ferrite beads added around cables; their effectiveness in minimizing noise is greatly affected by how they are deployed. This involves which signals are grouped, what are the drive characteristics, and how shielding and grounding are handled in the system.
As NVH technology advances, so do the tools that allow engineers to study, test, and manufacture bearings capable of delivering high-performance and quality.
Rolls-Royce is pioneering the UltraFan engine family architecture containing a planetary gearbox in a power range of 15 to 80 megawatts. To increase the efficiency of the UltraFan, a planetary gearbox is introduced between fan and intermediate pressure compressor. This enables running the turbine to rotate faster and allows a reduced fan speed.
The complete Industry News section from the February 2022 issue of Power Transmission Engineering.
The complete Industry News section from the December 2021 issue of Power Transmission Engineering.
Power Transmission component suppliers discuss COVID-19 Threat and how their companies are responding to keep the supply chain connected.
Our special advertising section takes a look at leading suppliers in the gear drives space.
One of our goals at Power Transmission Engineering is to help you understand, identify and select the best technology for your mechanical power transmission or motion control applications. With every project, you have to decide which components to use, and which suppliers, based on functionality, quality and price. We aim to help you make those decisions informed by providing the latest information on current technology, especially when it comes to mechanical components.
Bearings Manufacturers Support Essential Manufacturing by Staying Open through the COVID-19 Pandemic
Special advertorial section featuring the latest technology in couplings from leading manufacturers.
Belt and Chain Providers Focus on Quality and Longevity
The complete Product News section from the March 2021 issue of Power Transmission Engineering
The complete Industry News section from the February 2021 issue of Power Transmission Engineering.
Zach Rountree's life would be a lot easier if his job site was closer to town. As the owner and president of Rountree Construction, he oversees an operation that pulls 200 tons of material an hour out of a remote lake in Stockton, Georgia. Big equipment demands three-phase power, but out in the remote timberlands of rural Georgia, only single-phase power was available.
I was invited by Tom Astrene of TLT to write a response to the July 2010 TLT article (Ref. 1). My rebuttal â” âœIn Search of a Fatigue Limit: A Critique of ISO Standard 281:2007â â” was published in Tribology and Lubrication Engineering, TLT, August 2010 edition (Ref. 10). While this article is also available online, I will attempt to summarize the essence of my response.
a custom hydraulic brake system from Mico Inc. aid in the development of specialized material handling equipment.
The primary driver of an airport baggage handling queue conveyor must be able to operate under increasingly demanding operating conditions, including frequent starting and stopping. The selection of the primary driver of the queue conveyor is dependent on multiple criteria, including dimensional requirements and durability characteristics.
American Bearing Manufacturers Association (ABMA) Standard 9 and ISO 281 give equations for calculating the basic dynamic radial load rating for ball bearings. These equations are based on a number of assumptions, many of which are not valid for thin-section bearings. (Thin-section bearings are described in ABMA standard 26.2.) Nevertheless, many thin-section bearing catalogs report load ratings based on these equations. Kaydon has developed a new method for calculating the dynamic radial load rating for thin-section ball bearings. The new method uses the contact stress and the number of stress-cycles-per-revolution to calculate the capacity. The new numbers are based on five years of actual test results. These equations can also be used to calculate the dynamic radial load rating for four-point contact ball bearings, which are not covered in ABMA standard 9 or ISO 281.
This article is designed to help describe the selection process of a reducer to be used in the parcel handling industry. It will go over the different applications for which gearboxes are used throughout parcel handling facilities such as UPS, FedEx and DHL.
The complete Product News section from the April 2012 issue of Power Transmission Engineering.
It's a fact that drive systems wouldn't function properly or efficiently without couplings. They quietly go about their business of transferring motion from one drive element to the next. In the PT market today, couplings have the unique challenge of satisfying a variety of customer needs including tighter tolerances, higher speeds and a more versatile selection process.
The complete Product News section from the December 2012 issue of Power Transmission Engineering.
The complete Product News section from the August 2012 issue of Power Transmission Engineering.
The complete Product News section from the October 2010 issue of Power Transmission Engineering.
The complete Product News section from the June 2010 issue of Power Transmission Engineering.
Northwestern University Introduces Smallest Human-Made Flying Structure
The complete Product News section from the April 2009 issue of Power Transmission Engineering magazine.
This article describes how more sophisticated modeling techniques allow the latest software to identify design issues with bearings, shafts, gears and complicated multi-body systems.
The complete Product News section from the August 2013 issue of Power Transmission Engineering
Few industries are experiencing change quite as fast as the packaging arena. Lighter-weight containers are being introduced to reduce costs and energy use, packaging is being redesigned to attract consumer attention and manufacturers are using fewer materials in an effort to address environmental concerns.
The complete Product News section from the February 2010 issue of Power Transmission Engineering.
The Magnetic Gearing and Turbine Corp. (MGT), founded by Australian inventor Andrew French in 2000, manufactures injection molded gears and couplings based entirely on magnetic technology. The repulsive magnetic forces are used to transmit power without losing any energy, and drive shafts rotate completely independently of each other.
A reader asks what are the required parameters to properly specify a gear.
The scene is serene and picturesque. Sunshine reflects off the light chop of the Ohio River, as a barge winds its way into view. While those driving along Louisvilleâ™s River Road may be inclined to reach for a camera to capture this idyllic scene, the mood at Nugent Sand Company is anything but tranquil.
In the world of PT components, the clutch gets absolutely no recognition whatsoever. There are entire magazines dedicated to gears, bearings and motors, but clutches get very little press outside of the automotive industry.
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Power Transmission Engineering is collaborating with the Bearing Specialists Association (BSA) on a special section within the magazine. Bearing Briefs will present updated reports on bearing topics for each issue in 2016. Complimentary access to all BSA Bearing and Industry Briefs is available on the BSA website at www.bsahome.org/tools.
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Rolling-element bearings are high-precision components that need to be stored and handled carefully to perform as designed. Proper storage and handling of a bearing before, during and after installation is important because once debris enters a bearing, it reduces the life.
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This paper provides a mathematical framework and its implementation for calculating the tooth geometry of arbitrary gear types, based on the basic law of gear kinematics. The rack or gear geometry can be generated in two different ways: by calculating the conjugate geometry and the line of contact of a gear to the given geometric shape of a known geometry (e.g., a cutting hob), or by prescribing the surface of action of two gears in contact and calculating the correspondent flank shapes.
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If you read only one article this issue, it should be Norm Parkerâ™s article on the Chinese bearing manufacturing industry. Parker is an engineer with General Motors, a true industry insider who has become a regular contributor to Power Transmission Engineering.
Beginning with a brief summary and update of the latest advances in the calculation methods for worm gears, the author then presents the detailed approach to worm gear geometry found in the revised ISO TR 10828. With that information, and by presenting examples, these new methods are explained, as are their possibilities for addressing the geometrical particularities of worm gears and their impact upon the behavior and load capacity of a gearset under working conditions based on ISO TR 14521 â” Methods B and C. The author also highlights the new possibilities offered on that basis for the further evolution of load capacity calculation of a worm gearset based on load and contact pressure distribution.
The complete Product News section from the September 2014 issue of Power Transmission Engineering.
PERSONNEL CHANGES AND EXPANSION HIGHLIGHT CICERO, ILLINOIS GEAR MANUFACTURER
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