The deceleration and the descent of a planetary entry probe with a parachute system is investigated. The aerodynamic coefficients of the probe are estimated, including wake effects. Technical data concerning the parachute deceleration system of three planetary landers (Viking, Pioneer, and Galileo) are used as a guide for a basic layout of the Titan parachute system. Descent profiles with different deceleration systems are determined including density variations as well as zonal shear winds. Statistical weight data of conical ribbon parachutes, component weights of the Titan parachute system, and decelerator pack densities are presented. Probe spinning during descent is investigated for different spin vane dimensions and incidences. The descent simulation shows the damping characteristics of the probe due to a disturbance of the angle of attack at various points of the descent trajectory. Criteria for parachute material selection and parachute material characteristics are proposed.
Parachute Characteristics of Titan Descent Modules
1986
109 pages
Report
Keine Angabe
Englisch
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