Horizontal sliding model tests for soft landing mechanisms were conducted to measure the slip characteristic for lunar lander after landing impact occurring in touchdown process. The model test facility, formed by transmission control system, towing cylinder and limiting displacement system, measuring system, model box system, was used to research the slip characteristic under different landing velocities, footpad angles and landing points. The drive control system achieves any requirement horizontal sliding velocity|the cylinder and displacement restrictor system realizes the requirement pressure and depth|measuring system measures the sliding force, axial force, sliding velocity, displacement and footpad angle|and model box system compoundes the requirement test foundation bed. A series of tests were carried out under footpad level, depth 10 mm. The results show that linear relationship between sliding force and axial force is excellent, and their distribution is similar to National Aeronautics and Space Administration (NASA) results. So the horizontal sliding model tests device is reliable.
ZHONG Shi-ying, WU Xiao-jun, CAI Wu-jun, LING Dao-sheng. Development of horizontal sliding model test facility
for footpad’s lunar soft landing. J4, 2013, 47(3): 465-471.
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