NAVY MIL-D-23222 A (1)-1983 DEMONSTRATION REQUIREMENTS FOR HELICOPTERS《直升机演示需求》.pdf
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1、KILITARY SPECIFICATION DEMONSTRATION REQUIREMENTS FOR HELICOPTERS This amendment forms a part of Military Specification MIL-D-23222A, dated 18 March 1971, and is approved for use by the Naval Air Systems Command, Department of the Navy and is available for use by all Departments and Agencies of the
2、Department of Defense. PAGE i Under paragraph requirements: Delete “moving picture 3.1.6.1 and substitute “moving picture coverage 3.1.6.1.“ PAGE viii Delete “demonstration instrumentation report 3.19.2.1“ and substitute: “Instrument Reports 3.19.2.1 Demonstration Instrumentation Report 3.19.2.1.1 S
3、pecial Flight Test Instrumentation (SFTI) 3.19.2.1.2 Special Flight Test Instrumentation (SFTI) 3,19.2.1.3 Special Flight Test Instrumentation (SFTI) 3.19.2.1.4 Inventory and Status Report Excess Equipment Report Requisition and Technical Data Report“ PAGE 5 After paragraph 2.1,2, subparagraph NAVAI
4、R Instruction: delete “13900.1A Special Flight-Test Instrumentation of the Naval Air Test Center; Accountability and Handling Procedures for.“ PAGE 14 Paragraph 3.1.9.1, delete paragraph in its entirety and substitute: “3.1.9.1 General, The kind and amount of Special Flight Test Instrumentation (SFT
5、I), method of data acquisition and the information required by 3.19.2.1.1 necessary to comply with the demonstration.require- ments of this specification, shall be proposed by the contractor for Naval Air Systems Command (NAVAIR) approval and subsequent inclusion as an Appendix to the addendum to th
6、is specification. The Naval Air Test Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Center (NAVAIRTESTCEN) participation in review and verification of suitability of the proposed instrumentation will be required. By conferring with representatives o
7、f NAVAIKTESTCEN, the contractor shall make maximum utilization of Government-furnished SFTI as is available fron the NAVAIR Special Flight Test Instrumentation Pool (SETIP) at NAVAIRTESTCEN. All other required instrumentation shall be acquired by the contractor as contractor-acquired Government-owne
8、d SFTI. The contractor shall maintain repair, report, and administer Government-owned SFTI and when directed by COMNAVTESTCEN acting through the cognizant Contracting Officer, ship or release by incorporating “SF“ as the,last two characters of the items model number. All old equipment, where practic
9、al, will be clearly mavked with “SF“. PAGES 14 AND 15 Paragraph 3.1.9.2, delete paragraph in its entirety and substitute: “3.1.9.2 Installation, calibration and maintenance. The contractor shall install and calibra-te all aircraft instrumentation used in performing the demonstrations. All instrument
10、s and instrument systems shall be installed in accordance with the highest standards of mechanical and electrical installation practices. All transducers and strain-gage installations shall be properly located, shall be properly damped, shall have flat frequency response characteristics commensurate
11、 with the frequencies of excitation of the variable to be measured, and shall be properly mounted to assure valid measurements and freedom from extraneous excitations. The flat frequency response shall be not less than 60 Hz for all strain gages, pressure transducers, acceleration, velocity and disp
12、lacement measuring instrunents unless lower response characteristics, if proposed by the contractor, are concurred with by NAVAIR. Instrumentation recording systems including magnetic tape recorders and telemetry equipment, if installed and used on demonstration aircraft of NAVAIRTESTCEN, shall be c
13、ompatible with the existing ground station equipment at NAVAIRTESTCEN, To the maximum extent possible, end-to-end calibrations of all parameters shall be made through the aircraft instrumentation system to at least the maximum range of excitation expected during the course of the demonstration. The
14、calibration may be performed by a transducer substitution techniques for those transducers for which an accurate substitution model exists; however, this method is preferred only when an actual end-to-end calibration is not practical, Transferred laboratory calibrations shall be unacceptable, except
15、 in those cases in which the actual end-to-end calibration or transducer substitution methods are determined to be impossible or iruprac- tical. Calibration methods for all parameters shall be proposed to the Test Authority for approval. Calibration test data shall be obtained and recorded during bo
16、th increasing and decreasing values of the pertinent parameter which the instrument is intended to measure, to insure repeat- ability and freedom from hysteresis, 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-D-23222A (1) I5 W 3377706 0428723
17、 I m p: “u MIL-D-23222A(AS) Amendment 1 Il All strain gage installations on simple and complex structures shall be installed to minimize interactions or cross-talk during combined loadings; such interactions as do exist shall be properly accounted for during the calibration. Installation of strain g
18、ages which a.re impossible or impractical to calibrate shall be resorted to only if it can be shown, prior to such installation, that the computed loads from such installations are meaningful and useful, and provided further, that the methods of gage applications and load calculations from strain ga
19、ge output, gage factor, and physical constants of the member are acceptable to the Test Authority. The instrumentation shall be operated and maintained by the contractor during the demonstration, If, during the course of the demonstration, it becomes apparent to the Test Authority that there is a ch
20、ange in the calibration of certain instruments, such instruments shall be recalibrated and their recalibrations shall be witnessed and accepted in accordance with 3.1.9.4 and 3.1.9.5. Sufficient data (as a part of the report required by 3.19.2.1.1) shall be submitted by the contractor to the Test Au
21、thority for approval on the total airborne instrumentation system to insure (1) that no significant degradation of performance results from extraneous noise, vibration, shock or temperature, (2) that each channel has flat frequency response commensurate with the parameter to be measured, and (3) tha
22、t errors resulting from time delays or phase shifts between measured parameters are commensurate with the accuracy requirements of the test program. A detailed description of all instruments and recording devices, methods of calibration, location of instruments, and calibration data for each demonst
23、ration aircraft shall be submitted as separate appendices to the report required by 3.19.2.1.1. Such appendices shall be submitted at least three weeks prior to the time the aircraft is sc.heduled to arrive at the test site.“ PAGES 15 AND 16 Paragraph 3.1.9.3, delete paragraph ir. its entirety and s
24、ubstitute: “3.1.9.3 Check-calibrations. Check-calibrations of all contractor installed instrumentation shall be performed or witnessed by a representative of the Test Authority before commencing a demonstration: Instrumentation system static and dynamic response checks shall be made through the reco
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