TY - GEN
T1 - SIMULATION ANALYSIS ON STEERING CHARACTERISTICS FOR VEHICLE DESIGN OF MANNED PRESSURIZED LUNAR ROVER
AU - Yashiro, Naho
AU - Ishigami, Genya
N1 - Publisher Copyright:
© ISTVS 2021. All rights reserved.
PY - 2021
Y1 - 2021
N2 - A manned pressurized lunar rover is expected to expand the range and the duration of the manned lunar exploration. The dynamic motion of the rover may be different from that on the Earth because such a heavy rover (several tons) travels on loose soil under the low gravity of the moon. Therefore, the main scope of this study is to analyze the dynamic motion of the pressurized rover using a multibody dynamic simulator. In particular, we focus on the steering maneuverability of the rover with regard to vehicle design parameters such as the vehicle tread, wheelbase, and position of the center of gravity. The steering maneuverability of the rover is evaluated based on the wheel slip angle and vehicle rollover stability. The simulation study clarified that the wider tread and lower position of the center of gravity improve the steering maneuverability. Based on the simulation results with different vehicle design parameters and steering input, we summarize allowable vehicle design parameters for improving the steering maneuverability.
AB - A manned pressurized lunar rover is expected to expand the range and the duration of the manned lunar exploration. The dynamic motion of the rover may be different from that on the Earth because such a heavy rover (several tons) travels on loose soil under the low gravity of the moon. Therefore, the main scope of this study is to analyze the dynamic motion of the pressurized rover using a multibody dynamic simulator. In particular, we focus on the steering maneuverability of the rover with regard to vehicle design parameters such as the vehicle tread, wheelbase, and position of the center of gravity. The steering maneuverability of the rover is evaluated based on the wheel slip angle and vehicle rollover stability. The simulation study clarified that the wider tread and lower position of the center of gravity improve the steering maneuverability. Based on the simulation results with different vehicle design parameters and steering input, we summarize allowable vehicle design parameters for improving the steering maneuverability.
KW - Lunar surface exploration
KW - Pressurized rover
KW - Steering maneuverability
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M3 - Conference contribution
AN - SCOPUS:85124510537
T3 - Proceedings of the 20th International and 9th Americas Conference of the International Society for Terrain-Vehicle Systems, ISTVS 2021
BT - Proceedings of the 20th International and 9th Americas Conference of the International Society for Terrain-Vehicle Systems, ISTVS 2021
A2 - Martelli, Massimo
A2 - Kovecses, Jozsef
A2 - Shenvi, Mohit
A2 - Dixon, Jenna
PB - International Society for Terrain-Vehicle Systems
T2 - 20th International and 9th Americas Conference of the International Society for Terrain-Vehicle Systems, ISTVS 2021
Y2 - 27 September 2021 through 29 September 2021
ER -