Featured Research

from universities, journals, and other organizations

Acoustic tests verify Orion’s sound engineering

Date:
September 12, 2011
Source:
NASA
Summary:
Engineers have successfully completed the first of a series of acoustic tests on the Orion Multi-Purpose Crew Vehicle (MPCV) ground test vehicle, which consists of two major components of the Orion spacecraft: the crew module and the launch abort system. Built to spaceflight specifications, the Orion MPCV ground test vehicle is the first full-scale spacecraft built to support the development of the final human space flight vehicle, which is slated for its first orbital flight test in about two years.

Technicians position microphones around the Orion MPCV and launch abort system test articles in preparation for the second round of testing in the acoustic chamber at Lockheed Martin's facilities near Denver. The vehicle was bombarded by acoustic levels of 150 decibels to simulate conditions during launch and abort if necessary.
Credit: Photo courtesy of Lockheed Martin

Engineers have successfully completed the first of a series of acoustic tests on the Orion Multi-Purpose Crew Vehicle (MPCV) ground test vehicle, which consists of two major components of the Orion spacecraft: the crew module and the launch abort system. Built to spaceflight specifications, the Orion MPCV ground test vehicle is the first full-scale spacecraft built to support the development of the final human space flight vehicle, which is slated for its first orbital flight test in about two years.

More than 600 instruments, 500 accelerometers and 100 microphones were placed throughout the Orion crew module/launch abort system stack to test critical components of the spacecraft such as avionics, propulsion and crew life support. This ground test vehicle will serve as the "workhorse" for environmental testing that provides critical data to define the spacecraft's capabilities needed for long-duration, deep space missions.

The series of tests being conducted at Lockheed Martin's Reverberant Acoustic Laboratory near Denver, Colo., expose the spacecraft to acoustic forces as high as 150 decibels -- the sound energy a human would experience standing about 50 yards from a jet aircraft. The sound pressure tests last only a few minutes in length and are completed incrementally to allow the engineers to isolate and understand the behavior of each of the major components of the vehicle.

After the acoustic test series concludes, the spacecraft will remain in the chamber for modal survey testing in which vibrating stingers will be applied to the spacecraft structure to measure responses to simulated launch environments. The acoustic and modal tests will verify the spacecraft can withstand the extreme noise and vibration the vehicle will experience during a launch or an emergency abort.

Following the testing in Denver, the Orion MPCV ground test vehicle will be transported to the NASA Langley Research Center in Hampton, Va., where it will undergo a series of drop tests to analyze system performance during a variety of simulated landing trajectories and sea states.

NASA's fleet of Orion spacecraft will be manufactured at the Michoud Assembly Facility in New Orleans, La., then sent to the Operations & Checkout Facility at Kennedy Space Center for final assembly and integration prior to launch. The major components of the Orion spacecraft include the crew module, the service module, the spacecraft adapter and the launch abort system.


Story Source:

The above story is based on materials provided by NASA. Note: Materials may be edited for content and length.


Cite This Page:

NASA. "Acoustic tests verify Orion’s sound engineering." ScienceDaily. ScienceDaily, 12 September 2011. <www.sciencedaily.com/releases/2011/09/110907130957.htm>.
NASA. (2011, September 12). Acoustic tests verify Orion’s sound engineering. ScienceDaily. Retrieved July 24, 2014 from www.sciencedaily.com/releases/2011/09/110907130957.htm
NASA. "Acoustic tests verify Orion’s sound engineering." ScienceDaily. www.sciencedaily.com/releases/2011/09/110907130957.htm (accessed July 24, 2014).

Share This




More Matter & Energy News

Thursday, July 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Robot Parking Valet Creates Stress-Free Travel

Robot Parking Valet Creates Stress-Free Travel

AP (July 23, 2014) 'Ray' the robotic parking valet at Dusseldorf Airport in Germany lets travelers to avoid the hassle of finding a parking spot before heading to the check-in desk. (July 23) Video provided by AP
Powered by NewsLook.com
Boeing Ups Outlook on 52% Profit Jump

Boeing Ups Outlook on 52% Profit Jump

Reuters - Business Video Online (July 23, 2014) Commercial aircraft deliveries rose seven percent at Boeing, prompting the aerospace company to boost full-year profit guidance- though quarterly revenues missed analyst estimates. Bobbi Rebell reports. Video provided by Reuters
Powered by NewsLook.com
Europe's Car Market on the Rebound?

Europe's Car Market on the Rebound?

Reuters - Business Video Online (July 23, 2014) Daimler kicks off a round of second-quarter earnings results from Europe's top carmakers with a healthy set of numbers - prompting hopes that stronger sales in Europe will counter weakness in emerging markets. Hayley Platt reports. Video provided by Reuters
Powered by NewsLook.com
9/11 Commission Members Warn of Terror "fatigue" Among American Public

9/11 Commission Members Warn of Terror "fatigue" Among American Public

Reuters - US Online Video (July 22, 2014) Ten years after releasing its initial report, members of the 9/11 Commission warn of the "waning sense of urgency" in combating terrorists attacks. Mana Rabiee reports. Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins