UNIQUE FEATURES AND CAPABILITIES OF THE NADS MOTION SYSTEM 2001-06-0246
Developed by the U.S. National Highway Traffic Safety Administration, the National Advanced Driving Simulator (NADS) has many unique capabilities, including a large excursion envelope motion system with high performance. MTS Systems Corporation was responsible for the manufacture of the thirteen degree of freedom motion system driven by forty-five actuation channels. The motion system features a redundantly actuated ± 10 meter X and Y longitudinal and lateral steel belt drive for high stiffness and smoothness. A Stewart platform hexapod designed for taking advantage of the large X-Y travel rides on top the translation system. The hexapod supports a redundantly actuated ± 330-degree yaw turntable for more effective maneuver simulation and washout coordination. Finally, four high frequency vibration actuators beneath the cab feature self-reaction to minimize vibration to the graphics display dome and the projector support structure. This paper discusses the real-time control and mechanical design solutions that support the high motion envelope capacity of the NADS, including representative performance data.
Author(s):
Allen J. Clark, Hugh V. Sparks, Judy A. Carmein
Affiliated:
MTS Systems Corporation, 14000 Technology Drive, Eden Prairie, Minnesota (MN) 55344/2290, USA
Pages: 10
Event:
International Technical Conference on Enhanced Safety of Vehicles
Related Topics:
Steel
Simulators
Vibration
Yaw
Sensors and actuators
Simulation and modeling
Roads and highways
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