1、MIGS-22820B - 28 November 1990 SUPERSEDING MIIr-S-2282OA 3 March 1966 MILIITARY SPmnoN S- -R4Am GE“R, AC; GENERATJ SPIXXFICATION FOR niis specification is rriandatory for use Ily all Departmentc and Agencies of the Deparhnent of Defense. 1. SOOPE 1.1 Same. This specification covers the general requi
2、rements for servamtor-ta distrhtion is unlimited. Licensed by Information Handling ServicesProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL -2282 OB bL MIGS-2 282 OB 1.2.1.1 Illustration. if the coWCRnntlir-tachomter generator illustrated in Table
3、 i was a unit whose senamtor require a rated iriput voltage of 26 volts, the namenclature would became 26V-15SHlG4A. unit would be a size 15 sesvcnnotor-aanrping tachomter generator *we sew(3motor is mmily excited with a rated voltage of 26 volts, 400 Hz and would also bs the basic issue of the unit
4、. Tkis 1.2.1.2 Size. nie first two digits designate the nmxhnum diameter in tenths of an inch of the servamixr section of the servomotor-tachmeter generator. if me diameter is not exactly a whole nimiber of tenths, the next higher tenth is used. 1.2.1.3 Function. hyphen designates the function of th
5、e servamotor and the tachmter generator sections, respectively, in accordance with the follming code: nie sucoeeding two groups of letters separated by a SM second two-letter qrm DG RG M IN Servomotor Function Damping Tacheter Generator Rate Tachmeter Generator Integrating Tacheter Generator, Heater
6、 campencated integrating Tachameter Generator, Network ccanpencated 1.2.1.4 Sum IV frequency . The succeedhg digit indicatec the design frequency of the servamotor section of the serwmotor-tachaneter generator in accordance with the following code: mfxluenq code 60 -6 4 400 1.2.1.5 DeciSn modif icat
7、isn. An upper cace letter (in the illustration) following the frequency digit imiicates the basic issue of a standard servmtor-tachcmeter generator. significantly affects the le with the applicable specification sheets. in the event of conflict between the requirements of this specification and thos
8、e of the specification sheet, the latter shall govern. (see 6.3), a sample shall be subjected to first article inspection (see 3.2 First article. When specified in the contract or purchase order 4.5). construction and physical diniencions specified (see 3.1) . rotation of the shaft is counterclda?is
9、e when the servamotor-tachomter generator is viewed from the shaft extension end. 3.3 Decicm and construction. Swvmtors shall be of the design, 3.3.1 Direction of rotation. The standard (positive) direction of 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license fro
10、m IHS-,-,-HI -S- MIGS-2 282 OB 3.3.2 Parts, materials and mmceses. Parts, materials and procescec 3.3.2.1 Bearinsc. Bearings shall conform to the stipulations of shall conform to the specifications of Milis-81963. MIL-S-81963 an3, when require by the cpecification sheet, shall be barrier coated in a
11、ccordanc3e with MIGSID-1334. 3.3.2.2 H0ur;hs. Finish of the housing may be black in accordance with MIGSID-13924, if required. terminals are designated, the ternuna 1s shall conform to the specifications of MIGS-81963. When wire leads are usette3ed 3.3.6 Storacre. Servomtor-tachcmeter generators sha
12、ll be capable of storage rang- in arnbknt temperatures fran -62O k 2OC to 100C f 2OC. 3.3.7 siwr ear data. Spur gws shall be designed in acoordance with Tooth form shall be AGMA 207.06 an tested in accordance with AGMA 2000-A. full depth involute. 3.4 l?erformnce remirementS. 3.4.1 Visual and mechan
13、ical inspect ion, - Visual and mecham Cal inspection shall be Perf0;rnied bn accordance with 4.7.1 and shall meet the requirements of 4.8.1 of BL-S-81963. 3.4.2 Shaft radial and end play. Radial play and end play shall not exceed the values cpecified in the specification sheet when measurmocpheyic p
14、ressure, and relative humidity limits. 4.2.2 Ambient test conditions. unless otherwise cpecified herein, all Tanperature - 23O k 5OC Pressure - 28 to 32 inches EQ Wdity - NO greaw than 55 perCent 4.2.3 - ture, stabilized non- ting. The stabilized mn- operating temperature of the semmotor-tachomter g
15、enerator shall be as specified in MIL-S-81963. to the refererice and control windings of the servomtor portion and the applicable standard test voltage applied to the energizing winding of the tachwter generator section during the test. use for the periodic resistance measurements. teirrperature of
16、a semmmtor-tachamter generator shall be as specified in MIGS-81963, after the applicable rated standard test voltages have been applied to the reference winding, the energizing winding, and any heater windings for a period of one hour. The Output voltage winding shall be loaded with the standard loa
17、d specified on the applicable specification sheet. resistance lneasurements. test voltage sources shall possess the characteristics delineated in 4.2.5.1, 4.2.5.2, 4.2.5.3, and 4.2.5.4. Ihe rated standard test voltages shall be applied The control winding shall be 4.2.4 JBnDer ature, stabilized 013e
18、ra tinq. The stabilized operating The control winding shall be used for the periodic 4.2.5 standard test voltacres. Unless otherwise specified, the standard 11 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-22820B hl m 7999906 0465403 6 9 MIGS
19、-2282 OB 4.2.5.1 IUD litude. 4.2.5.1.1 servantor section. me anplitude of the standard test voltages for the servomotor section shall be the rated or specified voltages for exarrp3le, if the no-load speed is accepted at 98 percent of the specifiedminirmmivalue follming vibration, it shall not be les
20、s than 98 percent of the specified n then one of the follawing stall toque tests shall be performed. operated under ctandard test conditions. determined by applying a gradually im=reaChg torque loading to a value that will just permit the rotor to turn (shaft speed less than 1 rpm)* stall torque may
21、 be deternun tachometer generator shall be maunted on the standard test fixture and brought to the stabilized operating temprature of 4.2.4. then be coupied to a suitable dyamameter an the control winding eneqized with the rated standar test voltage of 4.2.5. half the measured stall torque shall be
22、applied; the speed shall be measured (in rpm) and shall meet the requirements of 3.4.17. be nmnted on the staridard test fkimre and the output winding loaded with the standard load specified on the applicable specification sheet. The servomtor-tachrnter generator shall then be brought to the stabili
23、zed operating tempratwe of 4.2.4. in- and the quarature-phase axis error voltages, as required by the the requirements of 3.4.18. (See Figure 6) The shaft shall A load equivalent to one- 4.7.18 Axis error voltaqes. n-ie servomotor-tachcmrahire environment, the units shall meet the requirements of 3.
24、5.4.2. With the output voltage winding loaded with the standard when the shaft has attained its Ms test shall be performed for The test sequerice shall then be repeated with If the shaft continues to rotate If the shaft continues to rotate for longer than 4.8.5 Ehdurm. The sermmotor-tachmekr generat
25、or shall be mounted The servcmtor-tachmeter generator shall be tested to 1000 in the standard test fixture and the output winding loaded with the standard load. hours in accordance with the cambination of speed conditions, ambient temperatures and shaft pitions indicated in Table M. For approxhately
26、 23 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-22820B b1 m 7777906 0465415 2 = MIL and should also specify if a black finish is required on the houcing. 6.3 Fht article ion, Informtion pertaining to first article inspection of servomtor-ta
27、chometer generators should be obtained as specified in MIGS-81963. supplies are f 10 percent on voltage and frequency and f 5 percent on harmonic content. in the applicable cpecification sheets for sewomtor-tachmeter generators are based upon t0le.r- of f 1 percent on voltage and frequency and f 3 p
28、ercent on harmonic content (see 4.2.5) unless otherwise noted in the specification sheet. characteristics may be degraded under normal field per cupply tolerances. 6.4 Rated voltaqe and freuuency . Normal toler- for field per It shdd be understood that the characteristics required merefore, servonot
29、or-tachometer generator perfonnance 6.5 Definitions. 6.5.1 Swd ranqe. The speed range of a servomtor-tachometer generator is the specified band of speeds within which perfonmnce characteristics are applicable. 6.5.2 Calibration weed . Tfie calibration speed of a servomotor- tachmeter generator is a
30、specified speed within the specified speed range used for staridardi zation and reference purpocec. Tfie calibration speed is usually fivesixths of the maxirmmi speed in the speed range. 6.5.3 IXmD ins coefficient. me damping coefficient of a servomtor- tachmeter generator is the siope of the speed-
31、torque me. the average damping constant, is approximately equal to: Tfie value, TS NO D = - x 6.74 x lo5 dpe-centhter-seconds per radian where: Ts = the stall torque in ounce-inches No = the no-load speed in revolutions per minute (rp?n) 25 Provided by IHSNot for ResaleNo reproduction or networking
32、permitted without license from IHS-,-,-MIL-S-22820B bL 779770b OYbCYL7 b MIGS-2282 OB 6.5.4 Th constant. The th constant (TC) of a servomotor- tachmeter generator is the time required for the mtor to reach 63.2 percent of the no-load speed after both windingc have been energized with rated voltages.
33、 It is equal to: . Jr TC= -seconds D where: Jr = rotor mament of inertia in gram-centhters2 D = damp- constant 6.5.5 Reversh the. The reversing th (Ki) of a cervamotor- tackaneter generator is the time required for the mtor to rea and a torque load necessary to reduce the shaft speed to one-half the
34、 measure no-load speed is applied to the shaft. 6.5.8 Ouimut voltaae. The output voltage of a servarotor-tachomter generator is the voltage across the output winding. 26 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIGS-22820B .r 6.5.8.1 si3ed -se
35、nsitive outm t voltaqe. The speed-sensitive output voltage is that portion of the output voltage of the fundaniental frequency that is a function of sped only (see Figure 6). one-half the sum of the furdamental output voltages measured at the same speed and test conditions in both directions of rota
36、tion as follows: It is numerically equal to vm + vcw 2 where: V is the mgnitude of the fundamenta coqornt of the output voltage. 6.5.8.1.1 I3-W- speed -sensitive outmtvoltaqe. The in-phase speed-sensitive voltage is that wrnponent of the cpsed-sensitive output voltage that has a phase which is the s
37、ame or 180 from the refer- phace. phase speed-sensitive output voltages meacured at the same speed and test conditions in both directions of rotation as foiuws: It is equal to one-half the algebraic difference between the in- vicm - Vicw 2 where: vi is the in-phase speed-sensitive output voltage. 6.
38、5.8.1.2 drature-dnse meed -sensitive outsut votaqe. ke guadrature-phace speed-sensitive output voltage is that -nent of the speed-sensitive output voltage that has a phase which is 90 or 270 froan the reference phase. between the quadrature-nse speed-sensitive output voltages meacured at the came sp
39、eed an test conditions ;in both directions of rotation as follaws: it is equal to one-half the algebraic differ- vaccw - vacw 2 where: Vq is the quadraturephase speed-sensitive output voltage. 6.5.8.2 Zero-meed output voltaqe. ?he zero-speed oirtput voltage of a swvamtor-tachmter generator is the vo
40、ltage present across the output winduig that is a function of rotor pition only. The total nns null voltage of a servanotor-tachamter generator is the magnitude of the total m zero- speed output voltage at that rotor position which producec a maximum value. 6.5.8.2.1 Total mic null voltacle. 27 Prov
41、ided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-22820B bL W MLGS-2282 OB 6.5.8.2.2 Fundamental rms null voltaqe. The fundamental mr; null voltage of a semumotor-tach-e generator is the magnitude of the rms zero-speed output voltage of fundamental f
42、requency at the rotor position which produces a maxinami value. 6.5.8.2.3 In-* null voltaae. The in-phase null voltage of a servmotor-tachcaneter generator is the magnitude of that component of mis zero-speed output voltage that has a phase which is the same or 180 fram the reference phase and is me
43、acured at a rotor position which producec a maximum value for the in-phase null Voltage. 6.5.8.2.4 Qua drature-w null voltaqe. The quadrature-phase null voltage of a servmtor-tachorneter gemrator is the magnitude of that camponent of nns zero-sped output voltage that has a phase which is goo or 270
44、fram the refer- phase and is measured at a rotor position which produces a maximum value for the quarature-phase null voltage. 6.5.8.3 Position error voltaqe. Te position error voltage of a servomotor-tach-W generator is onehalf the differ- between the fundamental nns null voltage and the magnib.de
45、of the nns zer- output voltage of fundamental frequency at that rotor position which produces a minimm value. 6.5.8.3.1 In-phase DOS ition error voltaqe. me in-phase position error voltage of a semornotor-tachcmter generator is one-half the algebraic difference between the in-phase null voltage and
46、the magnitude of that ccmp?onent of the rms zero-sped output voltage of fundamental frequency that has a phase Wch is 180 from the phase of the in-phase null voltage at that rotor position which producec a maximum value, if it exists. if it doec not exist, the in-phase position error voltage is one-
47、half the algebraic differ- between the in-phase position error voltage and the magnitude of that camponent of the nns zero-speed output voltage of fundamental frequency that has a phase which is the cae as the phase of the in-phase null voltage at a rotor position which produces a minimum value. (Se
48、e Figure 7) 6.5.8.3.2 Qua drature-rhase DOS ition error voltaqe. Tfie quadrature- phase position error voltage of a servomotor-tachawter generator is one- half the algebraic difference between the quadrature-phase null voltage and the magnitude of that ccenponent of the nns zero-sped output voltage
49、of fundamental frequency that has a phase which is 180 fran the phase of the quadrature-phase null voltage at that rotor position which producec a maxhm value, if it dsts. position error voltage is one-half the algebraic difference between the quadrature-phase null voltage and the magnitude of the caponent of the mis zero-speed output voltage of fundamental frequency that has a phace which is the same as
