Designand Verification of Integrated Suspension for Landing and Moving of Manned Lunar Mobility System

Aiming at the requirement of the manned lunar surface mobile system to cushion the landing directly on the lunar surface and complete large-range moving tasks, an integrated landing and traveling mobile system consisting of a double-arm attitude-adjustable metal spring suspension system has been designed. The core component, suspension unit, consists of a double-arm suspension structure and a variable damping friction shock absorber, which can be adjusted by the attitude adjustment component to change the suspension configuration and damping parameters. While meeting the requirements for large-range smooth movement, it is also able to adapt to the large-impact landing buffering. Based on the principle of dual-mass vibration, a suspension parameter analysis model and a driving smoothness dynamics simulation model are constructed, and landing and driving simulations are analyzed and prototype landing buffering tests are conducted. The analysis and test results indicate that the proposed mobile system design can meet the requirements for large impact landing buffering and driving smoothness during lunar landing. © 2023 China Spaceflight Society. All rights reserved.