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Electric Six Degree of Freedom Installation Timelapse (Six Degree of Freedom Dynamic Test System)The Six-degree-of-freedom Dynamic Test System (SDTS) is a short-range real-time motion based testing platform. Its primary use at NASA/JSC has been for development and qualification testing of docking systems, robotic assisted berthing mechanisms, and dynamic attachment systems. The SDTS is a closed-loop force feedback system that can simulate on-orbit contact dynamics between two vehicles utilizing the actual mechanical interfaces for testing. The facility is controlled by interconnected computers running real-time simulation software that takes measured contact forces, integrates the equations of motion in real time, and provide those states back into the motion table. This infrastructure can also be used for non-mating applications such as relative position sensor testing/evaluations. The SDTS facility provides a superstructure for mounting test articles, multiple test sensors, an intercom network for voice communications, and a synchronized timing system for data acquisition that includes HD video. This time-lapse video shows the buildup and testing of a modern electric actuation system created by Mikrolar, Inc. at the Johnson Space Center. This motion base will replace the current hydraulic actuator system, which is been in use since the 1970s, for all-future NASA testing. Once the system goes through customization to provide JSC’s unique closed-loop environment, the facility will help certify docking system and attach mechanisms on the ground before we send the first woman and the next man to the lunar surface
Document ID
20205008864
Acquisition Source
Johnson Space Center
Document Type
Video
Authors
Susan Ruth Winnitoy
(CACI NSS, INC )
Date Acquired
October 19, 2020
Publication Date
October 6, 2020
Publication Information
Publication: JSC Engineering Youtube Channel
Publisher: Youtube
Subject Category
Engineering (General)
Funding Number(s)
WBS: 954879.14.72
CONTRACT_GRANT: NNJ14HA04B
Distribution Limits
Public
Copyright
Public Use Permitted.
Technical Review
Single Expert
Keywords
hexapod
six degrees of freedom
docking test system
Six Degree of Freedom Dynamic Test System
Johnson Space Center
Closed Loop
NASA
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