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):

• York, K. C.
• Ingels, C. R.
• Maloney, J. G.

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

Distribution Statement:

APPROVED FOR PUBLIC RELEASE