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 2013 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.orgSAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/ARP1210DAEROSPACERECOMMENDED PRACTICEARP1210 REV. DIssued 1971-07 Revised 2002-12
5、Reaffirmed 2013-10 Superseding ARP1210C Gas Turbine Engine Interface Test Data Reduction Computer Programs RATIONALE ARP1210D has been reaffirmed to comply with the SAE five-year review policy. TABLE OF CONTENTS1. SCOPE .32. REFERENCES .32.1 Applicable Documents 32.1.1 SAE Publications 32.1.2 ISO Pu
6、blications .32.1.3 Other Documents43. GENERAL REQUIREMENTS.43.1 Engine Description43.2 Instrumentation Description 43.3 Modes of Program Operation43.4 Users Manual.43.5 Program Scope .53.6 Error Analysis64. PROGRAMMING PRACTICES 64.1 Equipment Capabilities .64.2 Program Language .64.3 Station Identi
7、fication and Nomenclature .64.4 Standard Atmosphere .64.5 Program Thermodynamics64.5.1 Standard Dry Air64.5.2 Fuel .64.5.3 Thermochemical Data.74.6 Programming Standards .7Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without
8、license from IHS-,-,-TABLE OF CONTENTS (Continued)5. PROGRAM CAPABILITIES 75.1 Installed Performance Effects .75.2 Program Logic.76. INPUT/OUTPUT .76.1 Program Interface Definition .76.2 Units86.3 Numerical Status Indicators 87. PROGRAM IDENTIFICATION 88. PROGRAM CHECKOUT 89. PROGRAM REVISIONS.9APPE
9、NDIX A U.S. CUSTOMARY UNITS10APPENDIX B SI (METRIC) UNITS11SAE INTERNATIONAL ARP1210D Page 2 of 11_ Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1. SCOPE:This SAE Aerospace Recommended Practice (A
10、RP) describes a class of digital computer programs for use by organizations other than the engine supplier for reduction of engine test data relating to the interface of the engine in the airframe or test facility. This ARP also is intended as a guide for the preparation of such computer programs.2.
11、 REFERENCES:2.1 Applicable Documents: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 co
12、nflict between the text 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.2.1.1 SAE Publications: Available from SAE, 400 Commonwealth D
13、rive, Warrendale, PA 15096-0001.AS681 Gas Turbine Engine Steady State and Transient Performance Presentation for Digital Computer ProgramsAS755 Gas Turbine Engine Performance Station Identification and NomenclatureARP4191 Gas Turbine Engine Performance Presentation for Digital Computer Programs Usin
14、g FORTRAN 772.1.2 International Organization for Standardization (ISO): Available from National Institute of Standards and Technology, Public Inquiries, Administration Building A903, NIST, Gaithersburg, MD 20899-0001.ISO 1000 SI units and recommendations for the use of their multiples and of certain
15、 other unitsISO 2533 Standard AtmosphereISO 2955 Representations for SI and other units to be used in systems with limited character setsSAE INTERNATIONAL ARP1210D Page 3 of 11_ Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted wi
16、thout license from IHS-,-,-2.1.3 Other Documents:NIST-JANAF Thermochemical Tables, Fourth Edition, Parts I and II, Malcolm W. Chase, Jr., Editor, August 1998, ISBN: 1-56396-831-23. GENERAL REQUIREMENTS:3.1 Engine Description:A description of the engine will be provided. This description will include
17、 the type of engine, the general arrangement of components, and such general characteristics as are necessary to understand the data reduction procedure.3.2 Instrumentation Description:A list of the instrumentation needed to obtain data for this program will be included. Calibration for engine suppl
18、ied instrumentation will be provided or included in the computer program.3.3 Modes of Program Operation:The program will have the capability of functioning both as a subroutine and as an independent program. The latter may incorporate additional procedures and input data supplied by the responsible
19、organization and required for propulsion system performance calculation (e.g., inlet, environmental control, and exhaust system analysis), and will consist of a MAIN program containing a CALL statement to the subroutine. Where unprocessed data are to be input, correction procedures and instrument ca
20、libration will also be supplied by the responsible organization.3.4 Users Manual:The program supplier will deliver the Users Manual with the program.The following format and content shares common sections with AS681 and is recommended for the Users Manual:1. Introduction.2. Table of Contents.3. Engi
21、ne Description. This section will enable the user to identify the engine and its general characteristics.4. Program Description. This section will enable the user to identify the computer equipment and programming practices upon which the program relies.SAE INTERNATIONAL ARP1210D Page 4 of 11_ Copyr
22、ight SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.4 (Continued):5. Nomenclature. This section will include program variable names, station identification, and other information required to understand the
23、Users Manual.6. Program Set-Up. This section will include instructions and information to enable the program users computer staff to set up the program.7. Program Capabilities. This section will describe the interfaces, logic options, limits, and other program features that enable the user to unders
24、tand fully the capability of the program.8. Input/Output. This section will describe in detail the input required to use the features described in Item 7 of this section, the output the program produces, and will list the units of all input and output parameters.9. Program Messages. This section wil
25、l explain the messages produced during program operation that identify output status, program logic paths, and, if applicable, data reject and substitution procedures that were used and will identify the numerical status indicator codes.10. Listings. This section will list the computer code statemen
26、ts comprising the subroutines that are supplied in source form.11. Test Cases. This section will describe the test cases that the supplier provides for program checkout by the user.12. Identification and Revision Procedures.13. Instrumentation. This section will list the instrumentation and its char
27、acteristics.14. Error Analysis. This section will describe the computer program test data reduction error analysis procedures and the results of error analysis, when requested by the customer.15. References.3.5 Program Scope:3.5.1 Categories of Programs to be Considered: Engine test data reduction p
28、rograms may range from programs that are limited to calculation of external performance, e.g., thrust, fuel flow, and airflow, to those that include an analysis of component performance for consistency checks.3.5.2 Limits: All known limits will be defined in the Users Manual, e.g., range of input pr
29、essure and temperature limits for which calibration curves are supplied, range of component performance which is supplied, or range of thermodynamic data for which calculations are valid. When the input data calls for an operating point outside limits, the program will proceed to complete its calcul
30、ation, if possible, and output the appropriate status indicator. The status indicators will clearly define the validity of the data. The program will always be capable of continuing with the next case provided the users subroutines and/or computer operating system do not override this capability.SAE
31、 INTERNATIONAL ARP1210D Page 5 of 11_ Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.6 Error Analysis:Upon request by the customer, an error analysis will be conducted by the participating organiz
32、ations to determine the accuracy of significant output parameters.4. PROGRAMMING PRACTICES:4.1 Equipment Capabilities:The users measurement system and computer capabilities may limit the program. Program development must be preceded by user/supplier coordination.4.2 Program Language:Any computer lan
33、guage (e.g., C, ADA, FORTRAN 77) may be used for engine computer programs if the language has been coordinated between the user and the supplier. If not otherwise coordinated, engine computer programs will use as a minimum language FORTRAN 66 level: full FORTRAN (Number 1) as originally defined in A
34、NSI X3.9, 1966a. This language may be augmented by features found in the commonly used FORTRAN languages of industry when these features are known to be acceptable to the program users. ARP4191 contains additional information for FORTRAN 77 applications.4.3 Station Identification and Nomenclature:St
35、ation identification and nomenclature will be consistent with AS755. Supplements to the system of AS755 that are necessary will be detailed in the Users Manual.Nomenclature symbols are not required to be used for variable names within the program. While the use of the same nomenclature within the pr
36、ogram may have merit in certain instances, such use will unduly restrict the program supplier and thus will be left to the discretion of the program supplier or to coordination between program user and supplier.4.4 Standard Atmosphere:Ambient temperature and pressure will be consistent with the geop
37、otential pressure altitude of ISO 2533.4.5 Program Thermodynamics:4.5.1 Standard Dry Air: The composition of standard dry air is to be based on that used for ISO 2533, but with the number of molecular species reduced by the reallocation of trace elements. The composition will be defined in the Users
38、 Manual upon request by the customer.4.5.2 Fuel: Fuel heating value assumed by the computer program will be specified in the Users Manual. Fuel specific gravity will also be specified if it is used in the performance calculation or its associated control model. Other fuel characteristics used in the
39、 program will be provided in an appendix to the Users Manual, upon request by the customer.SAE INTERNATIONAL ARP1210D Page 6 of 11_ Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4.5.3 Thermochemica
40、l Data: Thermochemical data used in the computer program will be defined in the Users Manual upon request by the customer. Thermochemical data for the purpose of gas turbine engine performance calculations will be consistent with data presented in the NIST-JANAF Thermochemical Tables, Fourth Edition
41、, Parts I and II, within the limitations of physical representation (e.g., reaction rates, heat transfer), engineering accuracy, and computational efficiency requirements. Upon request by the customer, the supplier will supply a comparison of the thermodynamic process calculations based on his/her t
42、hermochemical data and that given by the NIST-JANAF Thermochemical Tables within the range of applicable engine operating conditions.4.6 Programming Standards:The level of compiler optimization requires coordination between user and supplier.The program supplier will provide automatic preventive act
43、ion for the following illegal arithmetic operations or processes: the square root of a negative number, illegal arguments to exponential, logarithmic and inverse trigonometric subroutines. The numerical status indicator will clearly define the validity of the output. The program will always be capab
44、le of continuing with the next case provided the users subroutines and/or computer operating system do not override this capability.5. PROGRAM CAPABILITIES:5.1 Installed Performance Effects:The program will be capable of processing applicable installed performance and variable geometry position data
45、.5.2 Program Logic:Where practical, the program will supply the logic for a course of action:a. When a data element is missingb. When the data element is present but is rejected based on instrumentation evaluationc. When bad data are recognized through program consistency checksd. When bad data are
46、recognized to be present on the basis of the test historyThese items may require special input signals to the program. The program will indicate which logic paths have been rejected, which input data values have been rejected, and what alternate assumptions have been made to complete the analysis.6. INPUT/OUTPUT:6.1 Program Interface Definition:The communication between the calling program (written by either the program supplier or user) and the remainder of the reduction program will be coordinated individually between user and supplier.SAE INTERNATIONAL ARP1210D Page 7 of 11_
