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October 26, 2004  -  Volume 1, Number 2

Welcome to the E-Newsletter

 

 

Welcome to the E-newsletter. We are excited to announce that we have switched from a postal based newsletter to a web based newsletter.

"It was time for a change," Jamie Brooks, communications and marketing manager for the Institute said. "The site was out-dated, in respect to style and content. We wanted to stay on the cutting edge of technology and design, which is also why the e-newsletter seemed ideal for us."

The new e-newsletter will be produced monthly and will provide general and technical information to industry on the latest happenings at NIAR. The newsletter was created in partnership with Heinz & Associates, a web design company based in Milwaukee and Cincinnati.

Wind Tunnel Updates Soon to be Complete


Wind Tunnel's New Fan

The Walter H. Beech Memorial Wind Tunnel is getting back on schedule after initial testing during shakedown caused unexpected delays.

In late July during an accelerated fan start (to over 230 mph in less than 30 seconds), negative pressures generated

in the test section lifted the turntable out of the floor. As a result, some damage to the test section and the Corner 1 turning vanes occurred.

A new turntable design and procurement of replacement parts is in progress. Although not very costly in terms of funds required for replacement of these parts, there was a time delay for completion of the repairs.

Completed work

Construction was concluded on May 29 and included upgrades on the tunnel's major components.

Included in the upgrades was the installation of new flow conditioning equipment to allow for improved airflow simulation; a new six-component external balance that provides for precise measurement of the aerodynamic loads on test articles; a specialized fan, motor and drive unit that generate wind speeds ranging from 25 mph to well over 200 mph; and a large heat exchanger and cooling system that limit the temperature in the tunnel by removing the heat generated by the fan and by the friction from the air moving through the tunnel at high speeds. Before the upgrade, the tunnel could only be operated for approximately one hour before the air temperature would get too high for testing to continue.

The test section characterization and external balance calibration have also been achieved. The calibration of the external balance encompassed four weeks and produced promising results.

"The balance, said to be the best balance in the world for our type of tunnel - a 7 x 10 foot - is better than we had specified," John Laffen, director of the Aerodynamics Lab said.

The balance, the tunnel's primary means of measurement, was built by Aerotech ATE Ltd., based in Heathfield, England. The six-component external balance provides for precise measurement of the aerodynamic loads on test articles.

Up next

The current schedule has the tunnel undergoing shakedown starting the week of Dec. 20 and lasting into January. During shakedown the lab staff will perform their own testing in the tunnel to verify functionality and reliability. It will also help familiarize the staff with the tunnel upgrades.

"By performing several different kinds of wind tunnel tests, we will be able to test not only the system as a whole, but test ourselves as well," John Laffen, Aerodynamics Lab director said. "This will ensure that we can give our customers the best service available."

 

Modernization of Crashworthiness Progresses


The Institute's new
crash sled

The modernization of the Crash Dynamics Laboratory is near completion, with the new MTS Systems accelerator sled undergoing shakedown. The lab is expected to be open for business on Nov. 17 with their first test scheduled in January 2005.

The $3 million upgrade will allow the laboratory to keep up with advancing

technology and expand into new markets. It will also allow for easy installation of sled components as required for upgrades.

The new horizontal crash system will be an accelerator crash sled, meaning that the impact will initially take place and then use the crash sled to decelerate to a safe level of speed. Currently, the laboratory is only able to do component testing for aviation, but the upgrade will allow expansion into the automotive industry. Testing on air bags, child safety seats and other various component testing will be possible in addition to the current aviation testing abilities.

"The primary purpose of expansion was to give us the ability to 'stay ahead' of the continual evolution of dynamic test requirements for aircraft occupant protection systems," Joseph Mitchell, director of Crash Dynamics said. "A side product of this expansion is the ability to perform automotive occupant protection dynamic test programs. Initially, we're hoping to receive the overflow work---the customers who normally do their testing at established automotive test facilities--that will help us establish our clientele list."

Mitchell said they are currently maintaining their relationships with industry's major aviation manufacturers, B/E Aerospace, Raytheon, Cessna and Bombardier-Learjet.

Despite the cost of the upgrade, which was covered by both state and federal funding, every attempt will be made not to increase the user rates, Mitchell said. Rates for automotive testing are currently being established by the Office of Research Administration at the Institute.

Automotive testing is expected to cost less than aviation testing because automotive testing takes less time, which means increasing the volume of work the lab is capable of conducting.
In addition to the new sled, the laboratory has also expanded to include a client work/office space and two technical support rooms. The photographic lighting system, which was fabricated 14 years ago, will also be replaced.

With so many new improvements, the lab is in the process of introducing themselves into the automotive neighborhood. The lab has already attended an automotive tradeshow in Detroit and will visit another in San Diego in the near future.

Mitchell said he is also receiving calls from potential clients who have found them on the Institute's website, www.niar.wichita.edu. The Institute is currently in the process of redeveloping the website and Mitchell said he hopes that it will play a key role in those introductions.

"It's such a tremendous improvement that we can't wait for it to be done," Mitchell said. "We're ready to show our clients what we can do."

 






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