Title

Air Cushion Landing System Stability Study

Index Abstract

Not Available

Photo Quality

Not Needed

Report Number

AFWAL TR 80-3150

Index Price

$0.00

Report Availability

Full text available

Date

1980

Date Issued

1980-11-01

Extent

66

Corporate Author

Washington State University, Department of Mechanical Engineering

Laboratory

Flight Dynamics Laboratory

Identifier

ADA097744

ADA097744

Contract

F33615-80-K-3409

DoD Project

2402

DoD Task

240201

Distribution Conflict

No

Access Rights

This report has been reviewed by the Information Office (OI) and is releasable to the National Technical Information Service (NTIS). At NTIS, it will be available to the general public, including foreign nations.

Distribution Classification

1

Abstract

An analysis of an inelastic ACLS plunge mode dynamic model ACLS is presented. The ACLS has unrestrained side elements and frozen end elements. The model exhibits unstable behavior at certain operating conditions for which the side elements are in contact with the ground. A linear analysis showed this instability to be due mainly to the altitude sensitivities of the cushion to atmosphere airflows and the attendant influence on the dynamic pressure forces on the vehicle. the model instability can be alleviated by isolating side and end elements so that they are all unrestrained and by simultaneously venting the air cushion directly to atmosphere.

Date Modified

Scanned by request 2/22/2018 submitted by a Private Citizen (No Known Affiliation)

AD Number

ADA097744

DTIC Record Exists

Yes

Publisher

Wright-Patterson Air Force Base, Ohio : Flight Dynamics Laboratory, Air Force Wright Aeronautical Laboratories, Air Force Systems Command

Provenance

Bombardier/Aero

Type

report

Format

1 online resource

Subject

Mathematical Models

Stability

Landing Gear

Air Cushion Vehicles

Linear Systems

Vibration

Parameters

Air Flow

Freezing

Mathematical Analysis

Dynamic Loads

Equations of State

Wave Equations

Creator

Burton, T. D.