SAE ARP 419A-2001 Automatic Pilot Installations《自动试验装置》.pdf
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1、AEROSPACE RECOMMENDED PRACTICEARP419REV.AIssued 1957-11Reaffirmed 2008-02Revised 2001-10Automatic Pilot InstallationsFOREWORDChanges in this Revision are format/editorial only.TABLE OF CONTENTS1. SCOPE .31.1 Purpose.32. REFERENCES .32.1 Glossary of Terms .33. GENERAL REQUIREMENTS.54. DETAIL REQUIREM
2、ENTS .64.1 Mechanical64.1.1 Control Surface Actuators (Servos) 64.1.2 Engaging Systems 74.1.3 Follow-up Controls 74.1.4 Control Valves and Piping.84.1.5 Reference Components and Amplifiers 84.1.6 Controller and Function Selector Panel 84.1.7 General .84.2 Electrical .94.2.1 Power Supplies .94.2.2 Wi
3、ring94.2.3 Shielding and Grounding 94.2.4 Switches, Signal Devices and Interlocks 94.2.5 Engaging System94.2.6 Cockpit Control .9SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is en
4、tirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefrom, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE inv
5、ites your written comments and suggestions. Copyright 2008 SAE International All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior
6、written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: 724-776-4970 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE ARP419 Revision A- 2 -TABLE OF CONTENTS (Continued)4.3 Maintenance .104.3.1 Accessibi
7、lity 104.3.2 Clearances104.3.3 Replaceability104.3.4 Interchangeability104.3.5 Field Tester Provisions115. TESTS.115.1 Ground Tests.115.1.1 Mechanical Installation115.1.2 Electrical Installation .125.1.3 System Adjustments .125.1.4 System Operation .135.2 Flight Test145.2.1 Interlocks.145.2.2 Servo
8、Engage and Disengage 155.2.3 Servo Overpowering and Recovery 155.2.4 Stability - Normal Flight .155.2.5 Command Control.155.2.6 Altitude Control .165.2.7 Magnetic Heading Control 165.2.8 Throttle Control .165.2.9 Airspeed Control .165.2.10 Electrical Power Variation .165.2.11 Servo Force Limits 165.
9、2.12 Automatic Trim165.2.13 Radio - Automatic Pilot Coupler175.3 Post Flight .185.3.1 Mechanical185.3.2 Electrical .18APPENDIX A INSTALLATION SURVEY FORM19SAE ARP419 Revision A- 3 -1. SCOPE:These recommendations cover the mechanical and electrical installation and installation test procedures for au
10、tomatic pilots of the type normally used in transport type aircraft. The material in this ARP does not supercede any airworthiness requirement in the Civil Air Regulations.1.1 Purpose:This Aeronautical Recommended Practice is intended to outline Automatic Pilot installation design, performance, and
11、test recommendations for use as a guide by the aircraft industry.2. REFERENCES:“Design Manual on Aircraft Electrical Installations - Available from: Aircraft Industries Assn., 610 Shoreham Building, Washington 5, D.C.Specification MIL-W-5088B (ASG) “Installation of Aircraft Wiring“ - Available from:
12、 Commanding Officer, U.S. Naval Air Station, Johnsville, PennsylvaniaSpecification MIL-E-7894A (ASG) “Characteristics of Aircraft Electric Power“ - Available from: Commanding Officer, U.S. Naval Air Station, Johnsville, Pennsylvania, Attention: Technical Records DivisionCivil Aeronautics Manual 4 “A
13、ircraft Airworthiness“ - Available from: The Superintendent of Documents, U.S. Government Printing Office, Washington 25, D.C.Specification ANC-5 “Strength of Metal Aircraft Elements“ - Available from: The Superintendent of Documents, U.S. Government Printing Office, Washington 25, D.C.SAE Aeronauti
14、cal Standard AS402A “Automatic Pilots“ - Available from: Society of Automotive Engineers, Inc., 400 Commonwealth Drive, Warrendale, PA 15096-0001.SAE Aeronautical Recommended Practice ARP268A “Location and Actuation of Cockpit Controls for Commercial Transport type Aircraft“ - Available from: Societ
15、y of Automotive Engineers, Inc., 400 Commonwealth Drive, Warrendale, PA 15096-0001.RTCA Paper 151-56/DO-74 “Automatic Flight“ - Available from: Radio Technical Commission for Aeronautics., Room 2036, Building T-5, 16th in a hydraulic system, a pressure. A signal may be generated by a sensor, control
16、ler or selector or other such reference device.THROTTLE CONTROL: A function or mode of operation which provides power or throttle control in response to pitch attitude, glide slope, or airspeed signals.TRANSIENT: A temporary deviation of the aircraft from its normal attitude produced by momentarily
17、overpowering the automatic controls or by momentarily injecting a signal to cause a deviation.TRIM INDICATOR: An instrument used to indicate the relative amount of servo effort being used to maintain the aircraft trim.UNDERSHOOT: Movement of the aircraft whereby it stops short of the commanded refer
18、ence altitude, attitude or flight path, before settling out.3. GENERAL REQUIREMENTS:3.1 Equipment:The automatic pilots referred to herein should conform to Aeronautical Standard AS402A.3.2 Materials:Materials should be of a quality which experience and/or tests have demonstrated to be suitable and d
19、ependable for aircraft use.3.3 Workmanship:Workmanship should be consistent with high grade aircraft manufacturing practice.3.4 Environmental Conditions:The design of the installation should be such that satisfactory performance may be obtained under the environmental conditions to which the aircraf
20、t may be subjected.SAE ARP419 Revision A- 6 -3.5 Installation Survey and Component Selection:In order to provide information relative to the aircraft aerodynamic and structural characteristics, an “Installation Survey“ form is included as Appendix “A“ of this ARP. The aircraft manufacturer should, t
21、o the best of his ability with respect to the aircraft design status, supply the automatic pilot manufacturer with the information called for on this form. Along with this survey the aircraft manufacturer should also specify any automatic pilot component characteristics which may be deemed necessary
22、 to provide a closer integration of the automatic pilot with the basic aircraft control system.On the basis of this information, the automatic pilot manufacturer should then design, select, and combine the necessary components into a comprehensive system which can be expected to perform the desired
23、and necessary functions in accordance with AS402A, and not induce aerodynamic or structural loads in excess of the design limits specified by the aircraft manufacturer. Final values of maximum servo forces and signal calibration should be checked and determined on the basis of flight tests of the in
24、itial installation.4. DETAIL REQUIREMENTS:4.1 Mechanical:4.1.1 Control Surface Actuators (Servos):4.1.1.1 Location and Mounting: The location and mounting of the servo should be carefully considered from the standpoint of control system friction, preloads, lost motion, and other such characteristics
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