Dynamic Impact Force on a Special Drilling Mechanism for Planetary Exploration
作者： Luis J. Vila , Ramesh B. Malla
DOI: 10.1061/(ASCE)AS.1943-5525.0000601
关键词: Drill 、 Jet propulsion 、 Spacecraft 、 Aerospace engineering 、 Contact mechanics 、 Engineering 、 Ultrasonic horn 、 Contact force 、 Mechanical engineering 、 Vibration 、 Impact
摘要: AbstractSpecial percussive mechanisms have been used to explore the lunar, Martian, and other planetary subsurface extract soil (regolith)/rock samples for further study. The special type of investigated in this study, Auto-Gopher Ultrasonic/Sonic Driller/Corer (USDC) developed by National Aeronautics Space Administration (NASA) Jet Propulsion Laboratory Honeybee Robotics Spacecraft Mechanisms Corporation, consists an ultrasonic horn, a free mass (hammer), drill rod. This paper presents general methodology perform dynamic contact analysis longitudinal impact on rod including effects structural vibration damping force caused is obtained using Hertz force-indentation relation coupled with mode superposition method finite-element technique. Numerical solution, equilibrium iterations, equations motio...
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