380
11 Landing Gear Technology of Lunar Lander
Fig. 11.9 Inverted-tripod landing gear
Fig. 11.10 Potential energy variation of the lunar lander in turn over process
(1) Key geometric parameters. There were several key geometric parameters
including initial height from the lowest point of lander structure to bottom
face of footpad L h , and the shortest distance between the line connecting
the bottom center of two adjacent footpads and the central axis of the
lunar lander structure L v (as shown in Fig. 11.10), which had significant
effect on landing stability and system mass.
(2) Determination of parameters. In order to minimize system mass, value
of L h and L v should be minimized as far as possible on condition the
requirements of mass, strength and stiffness are satisfied. The minimal
value of L h is:
L h min ≈ S + S 0 + T + H
(11.5)
11 Landing Gear Technology of Lunar Lander
Fig. 11.9 Inverted-tripod landing gear
Fig. 11.10 Potential energy variation of the lunar lander in turn over process
(1) Key geometric parameters. There were several key geometric parameters
including initial height from the lowest point of lander structure to bottom
face of footpad L h , and the shortest distance between the line connecting
the bottom center of two adjacent footpads and the central axis of the
lunar lander structure L v (as shown in Fig. 11.10), which had significant
effect on landing stability and system mass.
(2) Determination of parameters. In order to minimize system mass, value
of L h and L v should be minimized as far as possible on condition the
requirements of mass, strength and stiffness are satisfied. The minimal
value of L h is:
L h min ≈ S + S 0 + T + H
(11.5)