NAVY MIL-R-23452 A-1982 ROCKET MOTOR MARK 25 MODS 0 1 2 AND 3《MARK 25 MODS 0 1 2 及 3型火箭发动机》.pdf

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1、19 July 1982 S!ELRWUE MIL-R-23452( WEP) 7 November 1962 MILITARY SPECIFICATION :RQCKET MOTOR MARK 25 MODS O, 1 , AND 2 This specification is ppproved for use by the Naval Air Systems Command Department of the Navy, and is available for use by all Departments and Agencies of the Department of Defense

2、. 1. SCOPE 1.1 Scope, This specification establishes the requirements for the 1.2 Classification. The Rocket Motor Mark 25 will consist of the Rocket Motor .Mark 25 Mods O, 1 , and 2 (see 6.1). following Mods: Mod Q - 30“ Canted nozzle Mod 1 - 15“ Canted nozzle Mod 2 - O“ Canted nozzle 2. APPLICABLE

3、 DOCUMENTS 2.1 Government documents. 2.1.1 Specifications, standards, and handbooks. Unless otherwise specified, the following specifications, standards, and handbooks of the issue listed in that issueof the Department of Defense Index of Speci- fications and Standards (DoDISS) specified-in the soli

4、citation form a part of this specification to the extent specified herein. SPEC1 FICATIONS MILITARY MIL-1-23453 Igniter, Rocket Motor, Mk 188 Mod O MI L-6-23454 Grain, Propellant, Rocket Motor, Mk 66 Mod O Beneficial comments (recommendations, additions, deletions) and any pertinent l for 24 hours a

5、t a nominal acceleration of 5 g. After completion of endurance vibration, each motor in Group III shall be radiographic inspected in accordance wti h MIL-STD-453. ature cycled from -4OO to 150F for three complete cycles. The motors shall be maintained at each successive temperature for a minimum of

6、48 hours. The time of transfer between temperatures shall not exceed 10 minutes. After completion of temperature cycling, each motor in Group III shall be radio- graphic inspected in accordance with MIL-STD-453. 4.4.2.2.3 Shock. Each unit shall be conditioned to -40F for 48 hours minimum. to the axi

7、s and 30 g along the axis. Each acceleration shall consist of one-half sine wave form with a duration of 15 -+ 5 milliseconds. After completion of shock tests, each motor in Group III shall be radiographic inspected in accordance with MIL-STD-453. 4.4.2.2.2. Temperature cycling. Each unit in Group I

8、II shall be temper- - Each unit shall then be subjected to accelerations of 12 g mormal 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. MIL-R-23LI52A 13 797770b O303383 2 TIGHTENED PLAN LARGER OF 6% OR 6 MOTORS PER LOT - START h b - - NORMAL PLAN

9、 LARGER OF 3% or 3 MOTORS PER LOT NOTE: The term “Accepted Lot“ shall apply to a lot thet meets all requirements of Tsble I and dm not apply to loa which fail one or more ballistic pameten but are subsequently eccaptad on a nmiver. FIGURE 1. Ballistic test sampling plan. 8 Provided by IHSNot for Res

10、aleNo reproduction or networking permitted without license from IHS-,-,- MIL-R-23452A 13 m 7979706 O303382 4 m 4.4.2.2.4 Temperature gradient firing. Each unit shall be conditioned in a chamber controlled at -40F for 48 hours minimum, then transferred to a chamber controlled at 150F for 2 hours. The

11、 unit shall then be fired in accordance with 4.3 within 20 minutes from the time of removal from the temperature .conditioning chamber. 4.4.2.3 Group IV. 4.4.2.3.1 Endurance vjbration. Each unit in Group IV shal-1 be conditioned at 105F and vibrated at 150F with a nominal frequency of 30 cps and a n

12、ominal acceleration of 1 g for 24 hours. Each unit shall then be condi- tioned at -40F and vibrated at -4OOF at the most significant resonant frequency as determined in 4.4.2.1 for 24 hours at a nominal acceleration of 5 g. After completion of endurance vibratiori each motor in Group IV shall be rad

13、iographic inspected in accordance with MIL-STD-453. 4.4.2.3.2 Temperature cycling, Each unit in Group III shall be temper- ature cycled from 150“ to -40F for three complete cycles. The motors shall be maintained in each successive temperature environment for a minimum of 48 hours. After completion o

14、f temperature cycling, each motor in Group IV shall be radiographic inspected in accordance with MIL-STD-453. The time of transfer between temperature conditioning rooms shall not exceed 10 mi nutes. 4.4.2.3.3 Shock. Each unit shall be conditioned to 150F for 48 hours minimum, Each unit shall then b

15、e subjected to accelerations of 12 g normal tothe axis and 30 g along the axis. Each acceleration shall consist of one-half sine wave form with a duration of 15 k 5 milliseconds. After completion of shock tests, each motor in Group IV shall be radiographic inspected in accordance with MIL-STD-453. 4

16、.42.3.4 Temperature gradient firing. Each unit shall be conditioned in a chamber cotitrolled at 150F for 48 hours minimum, then transferred to a chamber controlled at -40F for 2 hours. The unit shall then be fired in accordance with 4.3 within 20 minutes from the time of removai from the temperature

17、 conditioning chamber. 4.4;3 Accelerated aging tests. Eight units shall be selected at random from the preproduction lot and divided into two groups of four motors each, designated Group V and Group VI. T.he units in Group V shall be stored at -90F for 30 days. inspected in-accordance with MIL-STD-4

18、53. Each unit shall then be condi- tioned for a minimum of 48 hours at -40F and fired in accordance with 4,3 within 20 minutes after removal, from the conditioning environment. The units in-Group-VI shall be stored at 150F for 30 days, Each unit shall then be radiographic inspected in accordance wit

19、h MIL-STD-453, Each unit chal 1 then be conditioned- for a minimum of 48 hours at.150F and fired in accordance with 4.3 within 20 minutes after removal from the conditioning temperature. Each unit shall then be radiographic 9 Provided by IHSNot for ResaleNo reproduction or networking permitted witho

20、ut license from IHS-,-,-t MIL-R-23452A(AS) 1 4.4.4 Acceleration tests. Four units shall be selected at random from the preproduction lot and divided-into two groups of two motors each, designated Group VI1 and Group VIII. The units in Group VI1 shall be conditioned for 48 hours minimum in a temperat

21、ure environment of -4OOF. Following temperature conditioning, each unit shall be placed on a dynamic facility (track, centrifuge, or catapult), accelerated to 10 g along the longitudinal axis of the unit, and fired. specfied in Table I shall. be obtained, The units in Group VI11 shall be conditioned

22、 for 48 hours minimum in a teperature environment of 15OOF. Following temperature conditioning, each unit shall be placed on a dynamic facility (track, centrifuge, or catapult), accelerated to i0 G along the longitudinal axis of the unit, and fired. Pressure-time data for parameters specified-in Tab

23、le I shall be obtained. Pressure-time data for parameters 5. PACKAGING 5.1 Preservation and packaging. 5.1.1 Level A, In addition to the following, Level A packaging shall be in accordance Mith the Code of Federal Regulations 49 CFR 171-178, 5.1.1 .1 Unit packaging. Unit packaging of the rocket moto

24、rs shall be in accordance with LD 537844 and Drawing 2185549. The unit pallet shall contain nine rocket motors, 5.2 Packing. 5.2.1 Level A, In addition to the following, Level A packing shall be in accordance with the Code of Federal Regulations 49 CFR 171-178. 5.2.1.1 Exterior containers. Nine rock

25、et motors packaged as specified in 5.1.1.1 shall be packed in accordance with packaging drawings of LD 537844. 5.3 Marking, 5.3.1 Special markings. Marking of exterior containers.shal1 accordance wtih the Code of Federal Regulations 49 CFR 171-178. 5.3.2 .Nomahl markings. In addition to the markings

26、 required or order, unit packages and shipping containers shall be marked dance with Drawing 2202762 and MIL-STD-129. be in y convrac n actor- 5.4 Storage. Rocket motors shall be capable of storage in any position for a period of 3 years in a storage temperature range of -40“ to 14OOF w thout deteri

27、oration. 10 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I MI L-R-23452A( AS) 6. NOTES 6.1 specification is intended for jet assisted takeoff use on piloted aircraft. 6.2 Ordering data. Procurement ocuments should specify the following: Intended u

28、se. The solid rocket propellant motor covered by this a. Title, number, and date of this specification b. Full name of item including Mark and Mod numbers c, Preproduction lot size, when required d. Maximum lot size, when required e. Drawing numbers and other applicable documents f. That the safety

29、precaution requirements of the “Contractors Safety Manual for Ammuni tion, Explosives, and Re1 ated Dangerous Material ,I DOD 4145,26M, are applicable. NOTE: When this specification is used as part of.the description of work to be accomplished by a Government activity, the safety precaution requirem

30、ents of “Amnunition and Explosives Ashore,“ OP 5, are applicable. 6.3 Definition of terms. 6.3.1 Ignition interval time. The ignition interval time shall be defined as the time interval from the application of current to the 75 percent of maximum thrust on the ascending portion of the thrust-time cu

31、rve. thrust recorded on the thrust-time twace. 6.3.2 Maximum thrust, Maximum thrust shall be defined as the highest 6.3.3 Action time. Action time shall be defined as the time interval on the thrust-time record (pressure for acceleration firings) from 10 percent of maximum thrust (pressure) on the i

32、nitial rise of the record to the corresponding 10 percent of maximum thrust (pressure) on the final declining portion of the record. under the thrust-time curve between the limits of the action time. 6.3.4 Total impulse. The total impulse shall be defined as the area 6.3.5 Avera e thrust. The averag

33、e thrust shall be defined as the action time total -+- impulse see 6.3.4) divided by the action time (see 6.3.3). 6.3.6 Average pressure. Average pressure shall be defined as the value obtained by dividing pressure-time integral (see 6.3.7) by action time (see 6.3.3). 6.3.7 Pressure time integral. P

34、ressure-time integral shall be defined as the integral of the pressure-time record between the limits of action time (see 6.3.3). 11 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-R-23452A 13 7777706 0303385 T 6.4 First article. When a first ar

35、ticle is required, the item will be tested and should be a first article sample. The first article should consist of 30 units. The contracting officer should include specific instructions in acquisition documents regarding arrangements for exami- nation, test, and approval of the first article. Prepar i ng Act iv i ty : Navy - AS (Project 1340-N627) *us. GOVERNMENT PRINTING oleiicra im-sos-oaa/4sa7 12 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-