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Tuned mass Dampers

World leaders in the field of shock & vibration with over 60 years of industry experience. 

Reduce Unwanted Motion with Tuned Mass Dampers

A tuned mass damper (TMD) system consists of a vibrating mass that moves out of phase with the motion of the structure that it is attached or suspended to. As it moves out of phase, the inertial force of the TMD system dissipates the energy and reduces the vibrations placed on the structure. This is accomplished by tuning the TMD to the natural frequency of the structural mode targeted for damping.

TMDs have been successfully added to various structures throughout the world. Structures such as bridges, skyscrapers, staircases, stacks, and antennas can all be excited to high levels of vibration from wind, earthquakes, nearby machines, or traffic. All of these structures require TMD systems to eliminate discomfort, damage, or outright structural failure caused by vibration in the structure. Taylor Devices manufactures viscous damping devices for large scale TMD systems as well as full custom TMD systems for pedestrian bridges, walkways, concert venues, as well as other structures.

Tuned Mass Dampers for Bridges and Long Span Floors

Modern pedestrian bridges are sometimes long and slender in form, usually leading to a structural design with relatively low frequency primary modes of vibration. Similarly, some convention centers, hotels, concert halls and/or theaters are built with very long spans. Because of this, the bridge or floor can easily be excited by synchronized activities such as jumping, dancing, or even something as simple as walking. Unlike fluid dampers which convert mechanical energy into thermal energy, a tuned mass damper system will create a forcing function to oppose the induced dynamic structural deflection, thus suppressing motion.

Generally, TMDs are considered effective in applications of controlling structural motion where direct damping cannot be applied.  TMDs can be effective in the single frequency that they are tuned to, for controlling motions induced by wind, crowds of people, or other low-level vibration, where damping levels of less than 10% can be used. Multiple TMDs can be used if several modes can be excited by the input causing vibration.

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Using Viscous Damping Devices with Tuned Mass Dampers

Tuned mass dampers are typically installed in high-rise structures to control a structures response to wind inputs which may cause the building to sway. The amplitude and frequency of sway depends on height, slenderness and rigidity of the structure. In high-rise buildings, such sway may make people uncomfortable at low frequencies. 

Taylor Devices manufactures viscous damping devices (VDDs) to accompany tuned mass dampers in buildings such as 432 Park Avenue in New York City. These dampers help the large TMD systems effectively remove the energy from the system as it moves with the structure. 

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Benefits of a Tuned Mass Damper System

  • Independent Systems – Tuned mass dampers do not depend on external power sources for their operation. 
  • Always Ready – Tuned mass damper systems can respond to very small levels of excitation.
  • Accessible – These systems often take up rooms at the top of structures and their properties can be adjusted in the field.
  • Relatively easy to be introduced in new buildings or upgrading of an existing structures.
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COVID-19 UPDATE

The following update is from company president, Alan Klembczyk.

March 20, 2020

To the Customers of Taylor Devices:

Due to the ongoing dynamics of the situation with respect to the Coronavirus, I feel that it is necessary to update our customers yet again. As of today, there has been a significant development for us, so I want to convey our current status.

The Governor of New York State, Andrew Cuomo, today updated his Executive Order mandating that 100% of their workforce stay home, with certain exceptions.

Before explaining how that impacts us, please allow me to clearly state that we continue to monitor and adhere to the advice of the appropriate public health agencies. Our Executive Management team is in continuous communication with each other and we are reacting accordingly to minimize any possible impacts that this situation may cause in satisfying all our customer’s needs.

We continue to follow the Center for Disease Control (CDC), Occupational Health and Safety Administration (OSHA) and the Niagara County Health Department for news and advice on steps that should be followed. We are following the recommendations of those agencies.

Because Taylor Devices provides products and services for defense and national security-related operations supporting the U.S. Government and is a contractor to the US government, we are continuing our operations on a limited basis to support our requirements. This allows us to maintain at least a minimal workforce, including some office staff and some personnel who are supporting manufacturing, assembly, and testing operations.

We have taken substantial measures to allow certain other employees to work from home if their job function allows. Therefore, we are fortunate to be in a position that allows us to maintain many functional aspects of our Company while still practicing cautious measures to inhibit the spread of the Coronavirus.

Please continue to be assured of the following points:

  • TDI Management has taken substantial measures to maintain our ability to meet our obligations to our customers while adhering to the recommendations and regulations of government agencies. Our workforce remains confident, high- spirited and healthy. We have a sufficient workforce that have adjusted their work schedules as necessary. We remain confident that we will continue to meet the ongoing challenges that the situation is presenting to us.
  • Our Purchasing team is in continuous communication with our suppliers so that we can be updated on any delays that may occur. To date, there still have been no delays in receiving our raw materials, purchased components or outside services that affect our final product.

  • We are managing this crisis with plans and protocols, which includes the ability for many of our employees to work remotely and seamlessly to support our customers while keeping our employees safe.

  • Our cleaning service at our factory has stepped up cleaning and disinfecting, especially in high-use areas such as bathrooms and lunchrooms.

  • We have eliminated non-essential travel.

  • We have put into place a policy of reporting any personal travel by staff or family members outside of Western New York to Human Resources to determine if any quarantine measures will need to be taken, especially if the travel is to high-risk exposure areas or on cruise ships.

  • We have added a formal visitor pre-screening process that we now require all visitors that enter our facilities to complete.

Please be assured that Taylor Devices continues to hold a very high standard for all our customers while ensuring the safety of all our employees and our professional associates. Our Sales Staff is always available to answer any questions that you may have, and we will continue to support our customers to the absolute best of our abilities.

Thank you very much for your confidence in us to manage this challenging situation.

Alan Signature
Alan Klembczyk
President
TAYLOR DEVICES, INC.

Please stay tuned for more updates to come.

Thank You!

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