Free Newsletters - Space - Defense - Environment - Energy - Solar - Nuclear
..
. Space Travel News .




SPACE TRAVEL
Orion Feels the Vibe During Tests at Kennedy Space Center
by Staff Writers
Kennedy Space Center FL (SPX) Apr 29, 2014


Inside the Operations and Checkout Building high bay at NASA's Kennedy Space Center in Florida, the Orion crew module is positioned on a special portable test chamber and prepared for a multi-point random vibration test. Image courtesy NASA/Daniel Casper. For a larger version of this image please go here.

Testing designed to simulate the vibrations NASA's Orion will experience during its first trip to space successfully wrapped up inside the Operations and Checkout Building high bay at NASA's Kennedy Space Center in Florida. The completion of the testing marks another step forward toward Orion's uncrewed December flight that will put to the test the spacecraft that will send astronauts to an asteroid and eventually Mars on future missions.

"It was a great accomplishment for the test team in preparation for the Exploration Flight Test-1 later this year," said Rafael Garcia, the Orion Program Test and Verification lead at NASA's Johnson Space Center in Houston. "Following months of preparations and pretest analysis, the multi-point random vibration test was conducted without any major issues and was completed two days ahead of schedule."

To prepare for the vibration tests, which were conducted April 17-24, a team of NASA and Lockheed Martin engineers and technicians transferred Orion from the crew module assembly station to a special vibration stand in a portable test chamber. The spacecraft was isolated from the floor and stand on special footing. Orion's thrusters were cantilevered out so they were isolated from the test, and its windows, parachutes and drogue chutes were covered for protection.

Accelerometers and strain gages were placed around the crew module in various locations. These were used to measure simulated acceleration and strain levels on Orion's structure.

Two electromagnetic shakers, each capable of up to 4,000 pounds of force, were attached to Orion on opposite sides. Baseline vibration tests began at five megahertz and gradually were increased up to about 500 megahertz. After each test run, the shakers were relocated to different points on Orion and systems specialists checked for any changes or abnormalities in the spacecraft's structure.

Garcia said that preliminary analysis of the test data confirmed that Orion's structure performed as predicted.

Before each thirty-second test run, Orion's avionics, batteries and electrical systems were powered up and its ammonia and helium tanks were pressurized to 200 psi.

The tests were monitored in a separate control room near the high bay, and the data after each 30-second run was analyzed to check for imperfections or defects and how the crew module performed. A flight following team in Firing Room 1 in Kennedy's Launch Control Center monitored Orion during periods of powered-up testing.

"Shut-down limits were established in case the vibrations began to exceed limits," said Trevor Kott, the Orion Crew and Service Module ground test manager at Johnson. "This kind of test can be very complicated. There's a science to finding the right balance."

During the vibration test, other instrumentation on Orion was monitored for its state of health.

"The completion of the test is a great accomplishment for the test team and NASA's Orion Program in preparation for EFT-1," Garcia said.

Orion's first flight will launch an uncrewed capsule 3,600 miles into space for a four-hour mission to test several of its most critical systems. After making two orbits, Orion will return to Earth at almost 20,000 miles per hour and endure temperatures near 4,000 degrees Fahrenheit, before its parachutes slow it down for a landing in the Pacific Ocean.

.


Related Links
Crew Vehicle and Launch System at NASA
Space Tourism, Space Transport and Space Exploration News






Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle




Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News





SPACE TRAVEL
Orion Exploration Design Challenge Winner Announced
Washington DC (SPX) Apr 29, 2014
After a year-long competition among the nation's high schools, evaluators from NASA, Lockheed Martin, and the National Institute of Aerospace (NIA) have selected Team ARES from the Governor's School for Science and Technology in Hampton, Va. as the winner of the Exploration Design Challenge. The winner was chosen from a group of five finalist teams announced in March 2014. The Challenge wa ... read more


SPACE TRAVEL
It's a "go" for Arianespace's Vega launch with Kazakhstan's first Earth observation satellite

Arianespace to launch Indonesia satellite BRIsat

Commercial liftoff for Europe's smallest launcher

Russia sends two satellites into space

SPACE TRAVEL
Mars Rover Switches to Driving Backwards Due to Elevated Wheel Currents

Mission to Mars

Traces of recent water on Mars

Drill Here? NASA's Curiosity Mars Rover Inspects Site

SPACE TRAVEL
John C. Houbolt, Unsung Hero of the Apollo Program, Dies at Age 95

NASA Completes LADEE Mission with Planned Impact on Moon's Surface

Russia plans to get a foothold in the Moon

Russian Federal Space Agency is elaborating Moon exploration program

SPACE TRAVEL
Dwarf planet 'Biden' identified in an unlikely region of our solar system

Planet X myth debunked

WISE Finds Thousands Of New Stars But No Planet X

New Horizons Reaches the Final 4 AU

SPACE TRAVEL
Alien planet's rotation speed clocked for first time

Seven Samples from the Solar System's Birth

Astronomical Forensics Uncover Planetary Disks in NASA's Hubble Archive

An Earth-sized planet that might hold liquid water

SPACE TRAVEL
Equipped with New Sensors, Morpheus Preps to Tackle Landing on its Own

No Plans to Produce Zenit Rocket in Russia

Russia Gives Green Light to Super-Heavy Rocket Project

ATK Announces Contract Award from ULA to Build Composite Launch Vehicle Structures

SPACE TRAVEL
China issues first assessment on space activities

China launches experimental satellite

Tiangong's New Mission

"Space Odyssey": China's aspiration in future space exploration

SPACE TRAVEL
Asteroids as Seen From Mars; A Curiosity Rover First

Curiosity spots asteroids from the surface of Mars

Construction to Begin on NASA Spacecraft Set to Visit Asteroid in 2018

Dawn draws ever closer to dwarf planet Ceres




The content herein, unless otherwise known to be public domain, are Copyright 1995-2014 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement All images and articles appearing on Space Media Network have been edited or digitally altered in some way. Any requests to remove copyright material will be acted upon in a timely and appropriate manner. Any attempt to extort money from Space Media Network will be ignored and reported to Australian Law Enforcement Agencies as a potential case of financial fraud involving the use of a telephonic carriage device or postal service.