1、From: To: From: To : From: To: MIL-P-BZW (2) 13 rn qqwoh owzoq T m /zht I $-.,$il ,: 5 ( *$y* -A-* 1-82534( OS) Amendment -2 2 May 1969 Superseding Amendment-1 26 November 1968 MILITARY SPECIFICATION PROGRAMMER, RANGE AND A1KFRAM.E SEPARATION MARK 3 MOD 1 This amendment forms a part of Military Spec
2、ification MIL-P-(os) of 18 April 1968 and has been approved by the Naval Ordnance Systems Command, Department of the Navy Wherever it appears in specification delete “Bureau of Naval Weapons“ and substitute “Naval Ordnance Systems Command“; also delete “BuWeps“ and substitute ttt. Page 10, Table III
3、 Make the following changes: Humidity 4.5.1.2 Quality Confomnance Inspection 4,6 Humidity Quality Conformance Inspection Vibration, Standby Condition Quality Conformance Inspection Vibration, Standby Condition Quality Conformance Inspection High Extreme Quality Conformance Inspection Operation Qual
4、ity Conformance Inspection High Extreme Quality Conformance Inspection Operation Quality Conformance Inspection 4.5.1,2 4.6 4 , 5.1.4 4.6 4.5.1.4 4.6- 4,5.1.6.2 4.6 4.6.1.4 4.6* 4.5.1.6.2 4.6.1.4 4.6* * 4,6. Add the following note below table: *All tests of paragraph 4.6 shall be conducted except th
5、e enclosure test (4.6.1.5), Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-_-_I_ MIL-P-82534 (2) 33 m 9999906 0432230 b m a MEL-P- 82534 (OS) Amendment -2 Page 12, paragraph 4.4.2( c) , under “Ca-pabilitf . “Automatically control displacement/accele
6、ration amplitude of fundamental Delete and substitute vibration input to RASP at 0.10-inch double amplitude or log, whichever is less, over the frequency range of 20 to 2000 cps. Monitor cross-axis motion of RASP in two directions.“ Pages i3 and 15, paragraph 4.5.1.5. “4.5 1.5 Vibration, operating c
7、ondition. The programmer shall be subjected to sinusoidal vibration over the frequency range of 20 plus or minus 3, to 2000 plus or minus 40 cps, and at a double displacement amplitude of 0.100 plus or minus 0.015inch or a zero-to-peak acceleration of 10 plus or minus i.5g, whichever is less, in eac
8、h of the three axes shown in Figure 1. The frequency range shall be traversed at a logarith- mic rate in not less than 2.5 minutes, once in each axis. system used shall meet the performance requirements specified in 4.5.1.5.1 through 4.5.1.5.3. and 4.6.1.4.5 at room mbient temperature only, not less
9、 than twice in each axis. Readings shall be taken at approximately equal time intervals over the entire frequency range. individual reading shall be plus or minus 0.05 second for channel one and plus or minus 0.80 second for channel two. Delete and substitute: The vibration Perform tests a, b, and c
10、 as specified in 4.6.1.4.4 The readback time tolerance of each 4.5.1,5.1 Programmer support requirements. For tests specified in 4.5.1.5, the programmer shall be supported only in the area shown in Figure 2 except that the free ends of the programmer payload cable and test cable may be supported. 4
11、5.1.5.2 Vibration system requirements. The Vibration system used to conduct tests of 4.5.1.5 shall have a continuous duty force rating of at least 125 percent of the calculated force rating required to vibrate the programmer and supporting fixturesat specified levels. Total harmnic distortion in th
12、e acceleration waveform over the test range shall not exceed 10 percent. The acceleration system noise level at the unloaded vibration machine exciter shall be less than 0.4g rms with exciter power supply and field energized, and oscillator gain control set for maximum attenuation. level under the f
13、oregoing conditions shall not exceed 0.005-inch double amplitude. The displacement system noise -c . _- 4.5.1.5.3 Vibration control and monitor requirements 4.5.1. $. 3.1 Vibration machine output. Output of vibration machine shall be controlled by an automatic amplitude servo system and shall be mai
14、ntalied at the levels of displacement or acceleration specified in 4.5.1.5 by controlling the amplitude of the fundamental frequency. 2 cs Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-2534 (2) 13 777770b 0432211 W - 4 mL-8253k( OS) Amendment
15、 -2 Any distortion of the fundamental signal, remLes-s of cQurcej_ shakL -5 -e n& be allowed to affect the measurement of Wsplaoement or-acceleratFon i amplitude of the fundamental input frequency to the vibration machine. Such-distortion shall be eliminated from *he input control signal by use of a
16、 tracking band pass filter between the input control circuit and the amplitude cervo system. 4.5.1.5.3.2 Vibration pickups. During tests specified in 4.5.1.5 the output of the vibration machine shall be controlled and monitored by three piezoelectric accelerometers mounted in the vicinity of the pro
17、grammer so as to indicate the greatest motion of the supporting fixture on which the programmer is d.irectly mounted. meters shall be positioned in three mutually orthogonal axes. One accelerometer, mounted with iks axis parallel to the axis of motion, shall be used to control power to the vibration
18、 machine. ing two accelerometers, mounted parallel and perpendicular to the vibration machine trunnion axis, shall be used to monitor cross-axis motion. meter shall not exceed the filtered input to the vibration machine. Motion transducers other than piezoelectric accelerometers shal not be used for
19、 input control or monitoring. The accelero- The remain- Unfiltered cross-axis motion as indicated by either accelero- 4.5.1.5.3.3 Control and monitor circuits. Circuits used to control and monitor the vibration system for tests specified in 4.5.1.5 shall meet the following requirements: (8) Displace
20、ment circuits shall indicate amplitude of input displacement to the programer over the range of 0.010-inch double amplitude to the upper limit of the equipment to an accuracy of plus or minus 10 percent from 10 to 100 cps. (b) Acceleration circuits shall indtcate amplitude of input ac- The circuits
21、shall be capable celeration to the programmer to an accuracy of plus or minus 10 per- cent over the range of 17 to 2040 cps. of indicating the amplitude of both the fundamental and unfiltered signal, simultaneously. Ir It shall not be necessary, however, to indicate these signals - Page. 15, paragraph 4.6.1.1, last sentence: Delete “an indicated“ and.-.-.-. substitute “as indicated“. Project No. L340-N268 U. C. GOVERNMENT PRINTING OFFICE 1969-393-063/513 3 . .- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
