SAE ARP 5526D-2015 Aircraft Seat Design Guidance and Clarifications.pdf

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1、_ SAE 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 entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising there

2、from, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2015 SAE International All rights reserved. No part of this p

3、ublication 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 written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-497

4、0 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/ARP5526D AEROSPACE RECOMMENDED PRACTICE ARP5526 REV. D Issued 2003-01 Revised 201

5、5-07Superseding ARP5526C Aircraft Seat Design Guidance and Clarifications RATIONALE The changes in this revision represent the latest agreement obtained by the SAE SEAT Committee to adapt the content with the revised TSO-C127b and AS8049 and to reflect the latest industry needs. TABLE OF CONTENTS 1.

6、 SCOPE 5 2. REFERENCES 5 2.1 SAE Publications . 5 2.2 NAS Publications 5 2.3 CFR Publications 5 2.4 FAA Publications . 5 2.5 Civil Aerospace Medical Institute 6 2.6 NASA Publications 6 2.7 UL Publications . 6 3. RECOMMENDED PRACTICES . 6 3.1 Seat Back Handhold in Turbulence 6 3.1.1 Applicable Policy

7、 and Regulations 6 3.1.2 Recommended Practice 7 3.2 Seat Belt Misalignment/Disengagement . 7 3.2.1 Applicable Policy and Regulations 7 3.2.2 Recommended Practice 7 3.2.3 Examples 8 3.2.4 Y-belts . 12 3.3 Life Vest/Lifejacket Retrieval . 13 3.3.1 Applicable Policy and Regulations 13 3.3.2 Recommended

8、 Practice 13 3.3.3 Life Vests in Legrests Considerations . 14 3.4 Friction Fit Components 14 3.4.1 Applicable Policy and Regulations 14 3.4.2 Recommended Practice 14 3.5 Fire Containment - Cavity Fully Enclosed/Open . 15 3.5.1 Applicable Policy and Regulations 15 3.5.2 Recommended Practice 15 3.6 Hi

9、nged Aisle Armrests - Discreet Latch 15 3.6.1 Applicable Policy and Regulations 15 3.6.2 Recommended Practice 16 SAE INTERNATIONAL ARP5526D Page 2 of 57 3.7 Baggage Bar Loading and Retention of Items under the Seat . 16 3.7.1 Applicable Policy and Regulations 16 3.7.2 Recommended Practice 16 3.8 Sea

10、t Safety Placards . 20 3.8.1 Applicable Policy and Regulations 20 3.8.2 Recommended Practice 20 3.9 Literature Pocket Stowage Capacity . 20 3.9.1 Applicable Policy and Regulations 20 3.9.2 Recommended Practice 21 3.10 Tray Table Latch Retention . 22 3.10.1 Applicable Policy and Regulations 22 3.10.2

11、 Recommended Practice 23 3.11 Pinch Hazards . 24 3.11.1 Applicable Policy and Regulations 24 3.11.2 Recommended Practice 24 3.12 Sharp Edges . 29 3.12.1 Applicable Policy and Regulations 29 3.12.2 Recommended Practice 29 3.13 Delethalization of Seat Features . 29 3.13.1 Applicable Policy and Regulat

12、ions 29 3.13.2 Recommended Practice 30 3.14 Seat Features Adjusted With/Without Tools . 31 3.14.1 Applicable Policy and Regulations 31 3.14.2 Recommended Practice 32 3.15 Legrest and Footbar Retention . 32 3.15.1 Applicable Policy and Regulations 32 3.15.2 Recommended Practice 33 3.16 Emergency Esca

13、pe Path Marking . 33 3.16.1 Applicable Policy and Regulations 33 3.16.2 Recommended Practice 33 3.17 Rotating and Translating Armrests . 33 3.17.1 Applicable Policy and Regulations 33 3.17.2 Recommended Practice 33 3.18 Electrically Actuated Features 34 3.18.1 Applicable Policy and Regulations 34 3.

14、18.2 Recommended Practice 35 3.18.3 Further Information 44 3.19 Crew Size 45 3.19.1 Applicable Policy and Regulations 45 3.19.2 Recommended Practice 46 3.20 Occupant Size . 46 3.20.1 Applicable Policy and Regulations 46 3.20.2 Recommended Practice 46 3.21 Attendant Step 46 3.21.1 Applicable Policy a

15、nd Regulations 46 3.21.2 Recommended Practice 46 3.22 Wear and Deterioration . 48 3.22.1 Applicable Policy and Regulations 48 3.22.2 Recommended Practice 48 3.23 Fire Protection Requirements . 48 3.23.1 Applicable Policy and Regulations 48 3.23.2 Recommended Practice 48 3.24 Anti-Rattle Device . 49

16、3.24.1 Applicable Policy and Regulations 49 3.24.2 Recommended Practice 49 3.25 Recline Egress 50 3.25.1 Applicable Policy and Regulations 50 3.25.2 Recommended Practice 50 3.26 Abuse Loads for Secondary Structures 50 3.26.1 Applicable Policy and Regulations 50 3.26.2 Recommended Practice 50 SAE INT

17、ERNATIONAL ARP5526D Page 3 of 57 3.27 Fatigue Life Criteria . 51 3.27.1 Applicable Policy and Regulations 51 3.27.2 Recommended Practice 51 3.28 Reserved . 51 3.29 Reserved . 51 3.30 Reserved . 51 3.31 Legrest and Footrest Definition . 51 3.31.1 Applicable Policy and Regulations 51 3.31.2 Recommende

18、d Practice 51 3.32 SRP . 53 3.32.1 Applicable Policy and Regulations 53 3.32.2 Recommended Practice 53 3.33 Reserved . 55 3.34 Reserved . 55 3.35 Reserved . 55 3.36 Reserved . 55 3.37 Reserved . 55 3.38 Reserved . 55 3.39 Manual Override for TTL position of electrically operated seats 56 3.39.1 Appl

19、icable Policy and Regulations 56 3.39.2 Recommended Practice 56 3.40 Environmentally Preferable Material . 56 3.40.1 Applicable Policy and Regulations 56 3.40.2 Recommended Practice 56 4. NOTES 57 Figure 1 Seat belt misalignment 8 Figure 2 Seat belt misalignment 9 Figure 3 An example of a design to

20、avoid . 10 Figure 4 An example of a design to avoid . 10 Figure 5 An example of a design to avoid . 11 Figure 6 An example of a design to avoid . 11 Figure 7 Seat Y-belt misalignment 12 Figure 8 Belt cover non-permanent attachment 12 Figure 9 Economy seat - planes defining the boundaries of undersea

21、t stowage . 17 Figure 10 All other seats - planes defining the boundaries of underseat stowage . 17 Figure 11A Acceptable angle for upper surface of underseat stowage volume 19 Figure 11B Acceptable complex shape for upper surface of underseat stowage volume 19 Figure 12 Literature pocket size recom

22、mendations 21 Figure 13 External pockets 22 Figure 14 This is the hinge for an in-arm video display. It is an example of a type 1A Score from the injury potential analysis table. . 25 Figure 15 This is the arm cap for an in-arm tray table seat. It is an example of a type 1A score from the injury pot

23、ential analysis table. . 26 Figure 16 This is a hinge for an in-arm tray table. It is an example of a type 1A score from the injury potential analysis table. . 26 Figure 17 This is a spring mounted stowage box door. It is an example of a type 4A Score from the injury potential analysis table based o

24、n spring force potential. 27 Figure 18 This is an aft mounted food tray table. It is an example of a type 1A score from the injury potential analysis table. . 27 Figure 19 This is the hinge point for a rotating armrest. It is an example of a type 2B score from the injury potential analysis table. .

25、28 Figure 20 Head strike arc - side view 30 Figure 21 Head strike arc - top view 30 Figure 22 Hazard determination chart . 37 Figure 23 Legrest measurement points for moving parts . 38 Figure 24 Armrest measurement points for moving parts . 39 Figure 25 Seat back measurement points for moving parts

26、. 39 Figure 26 Force measurement example . 40 Figure 27 Acceptable foot insertion into stirrup type step . 47 SAE INTERNATIONAL ARP5526D Page 4 of 57 Figure 28 Typical economy class step 47 Figure 29 Typical first/business class step 47 Figure 30 Seat description 52 Figure 31 53 Table 1 Minimum pass

27、enger aisle width 15 Table 2 Injury potential analysis . 24 Table 3 Maximum force values 38 Table 4 Hazard level evaluation lbf (N = Newtons) . 41 Table 5 Examples of hazard modifying factor values 43 Table 6 Hazard value and recommended actions . 43 Table 7 CAESAR anthropometric database sitting an

28、d standing height . 46 Table 8 Typical small parts 49 Table 9 Seat secondary structure abuse loads 50 Table 10 Seat secondary structure fatigue life . 51 SAE INTERNATIONAL ARP5526D Page 5 of 57 1. SCOPE This SAE Aerospace Recommended Practice (ARP) documents a common understanding of terms, complian

29、ce issues and design criteria to facilitate certification of seat installations specific to Part 25 aircraft. This ARP provides general guidance for seats to be installed in Part 23 aircraft and Parts 27 and 29 rotorcraft and does not specify specific designs or design methods for such certification

30、. 2. REFERENCES The following publications form a part of this document to the extent specified herein. The latest issue of SAE publications shall apply. The applicable issue of other publications shall be the issue in effect on the date of the purchase order. In the event of conflict between the te

31、xt of this document and references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 2.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, War

32、rendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or +1 724-776-4970 (outside USA), www.sae.org. AFRL-HE-WP-TR-2002-0170 CAESAR: Summary Statistics for the Adult Population (ages 18-65) of the United States of America AS8049B Performance Standard for Seats in Civil Rotorcraft, Transp

33、ort Aircraft, and General Aviation Aircraft 2.2 NAS Publications Available from Aerospace Industries Association, 1000 Wilson Boulevard, Suite 1700, Arlington, VA 22209-3928, Tel: 703-358-1000, www.aia-aerospace.org. NAS 809 Specification - Aircraft Seats and Berths 2.3 CFR Publications Available fr

34、om the United States Government Printing Office, 732 North Capitol Street, NW, Washington, DC 20401, Tel: 202-512-1800, www.gpo.gov. Code of Federal Regulations Title 14 Part 23 (14 CFR Part 23) Airworthiness Standards: Normal, Utility, and Acrobatic Category Airplanes Code of Federal Regulations Ti

35、tle 14 Part 25 (14 CFR Part 25) Airworthiness Standards: Transport Category Airplanes Code of Federal Regulations Title 14 Part 27 (14 CFR Part 27) Airworthiness Standards: Normal Category Rotorcraft Code of Federal Regulations Title 14 Part 29 (14 CFR Part 29) Airworthiness Standards: Transport Cat

36、egory Rotorcraft Code of Federal Regulations Title 14 part 121 (14 CFR 121) Certification and Operations: Domestic, Flag, and Supplemental Air Carriers and Commercial Operators of Large Aircraft 2.4 FAA Publications Available from Federal Aviation Administration, 800 Independence Avenue, SW, Washing

37、ton, DC 20591, Tel: 866-835-5322, www.faa.gov. AC 25-17A Transport Airplane Cabin Interiors Crashworthiness Handbook AC 25.785-1B Flight Attendant Seat and Torso Restraint System Installations SAE INTERNATIONAL ARP5526D Page 6 of 57 PS-ANM100-2003-10019 Subject: Policy Statement on Evaluating a Seat

38、 Armrest Cavity for a Potential Fire Hazard PS-ANM-25.853-01-R2 Subject: Flammability Testing of Interior Materials ANM-04-115-28 Subject: Policy Statement on an Unreliable Design of Seat Belt Attachment, Fittings on Passengers Seats and Compliance with 25.601 ANM-03-115-31 Policy Statement on Condu

39、cting Component Level Tests to Demonstrate Compliance with 25.785(b) and (d) Special Airworthiness Information Bulletin (SAIB) NM-04-37, issued December 22, 2003, recommends that a specific design of seat belt attachment fitting be replaced with an improved design fitting. 2.5 Civil Aerospace Medica

40、l Institute Available from the United States Government Printing Office, 732 North Capitol Street, NW, Washington, DC 20401, Tel: 202-512-1800, www.gpo.gov. DOT/FAA/AM-03/9 Human Factors Associated With the Certification of Airplane Passenger Seats: Life Preserver Retrieval 2.6 NASA Publications Ava

41、ilable from NASA, Documentation, Marshall Space Flight Center, AL 35812, www.nas.nasa.gov. NASA-STD-3000 Vol. I Man Systems Integration Standards Rev. B, NASA Johnson Space Center, Houston, TX, 1995. 2.7 UL Publications Available from UL, 333 Pfingsten Road, Northbrook, IL 60062-2096, Tel: 847-272-8

42、800, . UL 1439 Tests for Sharpness of Edges on Equipment 3. RECOMMENDED PRACTICES FAR references can be considered valid across aircraft categories: 14 Code of Federal Regulations Parts 23, 25, 27, and 29. 3.1 Seat Back Handhold in Turbulence 3.1.1 Applicable Policy and Regulations 14 CFR Part 25.78

43、5 (j) Amendment 25-88 If the seat backs do not provide a firm handhold, there must be a handgrip or rail along each aisle to enable persons to steady themselves while using aisles in moderately rough air. AC 25-17A par. 81.b (6) Crashworthiness Handbook The seat back may serve as a firm handhold. Si

44、nce many seats are capable of breaking over, the breakover load must be adequate to be considered firm. A load of 25 pounds (111 N) minimum, acting horizontally, is considered adequate when applied at the top center of the seat back. SAE INTERNATIONAL ARP5526D Page 7 of 57 3.1.2 Recommended Practice

45、 A handhold is defined as a means of providing a hand hold support for a person standing upright in an aisle during flight. If an adequate supplemental rail or handgrip is not provided in the interior, seat backs may be used as the handhold so long as they are spaced sufficiently close together to b

46、e within reach for an occupant using the aisle. For that purpose, a seat pitch of 65 inches (165 cm) or less is considered adequate in a typical commercial transport aircraft configured with forward or rearward facing passenger seats positioned along an aisle. Due to the unique and customized interi

47、or arrangement of forward, sideward or rearward facing passenger seats in business/private transport aircraft (not for hire) these configurations should be assessed individually. Divan seating and side facing seats do not normally place the seat back where it can be effectively used as a handhold. T

48、o act as a handhold, the upper aisle-side corner of the seat back should provide either a surface to grip or push against. A seat back used as a handhold should not break over when a force of 25 pounds (111 N) in a direction perpendicular to the seat back is applied at the top center of the seat bac

49、k. Seat backs with head rests that telescope more than 3 inches above the seat back may be used for a handhold if, in addition to all other requirements, no portion of the head rest, e.g., bendable ears and/or tilting head rest, can be moved more than 7 inches (17.8 cm) before a 25 pound (111 N) resistive force is met. The seat back handhold should be at least 33 inches (84 cm) above the floor, even if the seat back is reclined