Accession Number:
AD0806838
Title:
INVESTIGATION OF SPACE PACKAGE ALIGHTMENT DYNAMIC LOAD DESIGN CRITERIA.
Descriptive Note:
Technical rept. Jul 64-Mar 66,
Corporate Author:
GENERAL DYNAMICS CORP POMONA CA POMONA DIV
Personal Author(s):
Report Date:
1966-10-01
Pagination or Media Count:
362.0
Abstract:
This report presents the results of a limited parametric study of ten space package alightment systems. A state-of-the-art review in alightment dynamics was conducted prior to beginning the parametric study. Two three-dimensional digital simulations were developed for use in the parametric study. Each of these simulates a basic design concept of an alightment system. Two types of alightment systems were examined. One for a 300 pound capsule with electronic cargo and one for a 3000 pound capsule with human cargo. An experimental program was performed to permit a comparison of predicted and measured acceleration time histories during alightment. Generally, excellent correlation was shown. Energy absorbing material or techniques are shown to be a secondary consideration in determining the efficiency of an alightment system. A three-dimensional digital simulation of alightment dynamics is concluded to be mandatory in the development of an alightment system. The feasibility of an alightment system, weighing 6 percent of the total capsule weight, to alight successfully on a 35 degree slope with a 12 degree capsule inclination is shown. Such a system is capable of handling a vertical velocity of 35 feet per second and a horizontal velocity of 15 feet per second. Author
Descriptors:
- *LANDING GEAR
- *SPACECRAFT
- MANNED SPACECRAFT
- SPACE CAPSULES
- SIMULATION
- MATHEMATICAL PREDICTION
- FEASIBILITY STUDIES
- EFFICIENCY
- ACCELERATION
- THERMAL INSULATION
- ENERGY
- SPACECRAFT COMPONENTS
- DIGITAL COMPUTERS
- LANDING IMPACT
- PAYLOAD
- SUPPORTS
- RECOVERY
- STABILITY
- SHOCK ABSORBERS
- PITCH(MOTION)
- ROLL
- EQUATIONS OF MOTION
- FORCE(MECHANICS)
Subject Categories:
- Manned Spacecraft