NGHIEN CU'U - TRAO DCI
NGHIEN CU'U ANH HUdNG COA MOT SO THONG S6 K i T CAU Di.H UY LU'C XUYEN THEP CUA DAN SUNG XUYEN Du'di C&
Kieu LU-U TUYEN
RESEARCH EFFECTS OF SOME STRUCTURAL PARAMETERS TO ABILITY STEEL PIERCING OF THE ARMOR PIERCING COMPOSITE RIGID (APCR)
ThS. Nguyin Due Tiin\ TS. Tran Van Doanh^ KS. Biii Thi Loc^
'Tdng cue Ky thuat
^Hpc vien Ky thuat Quan su 'Tdng cue Cdng nghiep Quoc phdng
Dan xuyen duoi ca kiiu luu tuyen duac phdt trien nhdm tdng uy luc xuyen thep cua dan tnd vdn ddm bdo duac cdc tinh ndng thudt phong ca bdn tuang tu nhu dan trong trang bi. Uy luc xuyen cua dan tdng len do su dung vat lieu co mat dp cao hem thep. Sic thay doi ndy ddn den dgc tnmg hinh hpc vd khd ndng xuyen thep cua dgn bi dnh hu&ng. Dua tren casaddm bdo khd ndng sit dung tren VM khi co trong trang bi, bdi bdo xdy dung mo hinh tinh todn khdo sdt uy luc xuyen thep cm dan sung xuyen duai ca kieu lim tuyen theo mpt so thong so dgc trung cua dgn ndy.
Tir khoa: Dgn; Dgn xuyen du&i ca kieu luu tuyen; Xuyen thep; On dinh con quay.
ABSTRACT
Armor Piercing Composite Rigid (APCR) are developed to increase the penetration power of bullets while ensuring basic launch features similar to those same calibers in equipment. The penetration force of the bullet increased due to the use of materials with higher density than steel.
This change leads to effect on the geometry characters and piercing ability of the bullet. Based on the ensuring the ability to use weapons on the equipment, the paper will be built a model of computational and powerful survey of steel bullets through the Armor Piercing Composite Rigid (APCR).
Keywords: Ammunition, Armor Piercing Composite Rigid (APCR), armor piercing, gyroscopic stability.
ISSN 0866 - 7056
TAP CHi CO KHi VIET NAM, Sd 1+2 nam 2019 www.cokhivietnam.vn
NGHIEN CU'U-TRAO D 6 |
1. DAT VAN DE
Hien nay, cdng nghe vat lieu phat trign da tang cudng kha nang bao ve cho bd binh cung nhu cac trang thiet bi quan sir trong quan dpi ciia cac nude tren the gidi. Ao giap chdng dan cd miic bao ve III+ tbeo tidu chuSn NIJOlOl .06 cua My (chdng dupe dan 7,62x39mm Idi thep) da trd len phd bien. Do vay, viec tang cudng uy luc xuygn cho dan siing la mpt nbu c4u tit ygu trong phat trien ky thuat trang bi cua quan doi.
De giai quygt dupe yeu cau nay, cac hudng giai quyet ve uy luc xuyen thep da duoc neu trong bai bao [4]. Tuy nhign, chua cd digu kien thuc nghiem chiing minh nhimg luan giai nay. Ngoai ra, can phai bd sung vao md hinh tinh toan de hoan thien viec danh gia uy luc
xuyen thep ciia dan xuyen nhd hem cd kieu luu tuydn d cu ly khac nhau va so sanh vdi dan xuygn ldi thep thdng thudng trong trang bi.
2. NOI DUNG
Dan xuygn dudi cd kieu luu tuyen duac thigt kg ban tren siing hien cd thudng cd khdi lupng dau dan nhd han khdi lupng dau dan thdng thudng nen phai dam bao cac dieu kien c a ban: Dieu kien ben ndng va dieu kien dn dinh chuyen ddng cua dau dan trgn dudng bay.
2.1. M6 hinh v § t l y
Cau tao chung cua dan sung xuyen thep cd cau tao co ban nhu hinh 1.
Hinh 1. Cdc kich thu&c ca bdn cua ddu dgn vd sa do xuyin vdo bdn thep cua dgn xuyen thip:
1) Vd ddu dan; 2) Loi xuyin; 3) Cdc chua loi xuyen; 4) Bdn thep; b) Bi ddy bdn thep.
l.t. Cac gia thiet 2.3. Mo hinh tinh toan
- Cac thdng sd khi tuong d a. Dieu kien ben ndng cua vii khi hien co:
digu kien chuan.
So tdc ldn nhat cua dau dan tinh toan theo digu kien Vat lieu ddng nhat trgn b i n ndng [2] tren ca sd dan cd sin trong trang bi vidt theo gia moi chi tidt cua dan. tri tuong ddi cd dang:
Chieu sau xuyen thep ciia dan tinh theo cdng thiic Gia cdp d o ma [7], bd qua anh hudng cua cdc chiia loi xuydn va vd dau dan.
Ta cd: Vn,
. <p„.c„
2 . C ,(1)
Trong do: C^ n, - C „ ,j.Vj,,,- Dpng nang mieng n o n g * "
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i
NGHIEN CIJU - TRAO DOI
NGHIEN c u u ANH HUdNG CLIA MOT S6 THONG S6 KET CAU DEN UY LUC XUYEN THEP CUA DAN SUNG XUYEN DUOI CO
KIEU LUU TUYEN
RESEARCH EFFECTS OF SOME STRUCTURAL PARAMETERS TO ABILITY STEEL PIERCING OF THE ARMOR PIERCING COMPOSITE RIGID (APCR)
ThS. Nguyen Dire Tijn', TS. Tran Van Doanh', KS. Biii Thi Lgc' 'Tong cue Ky thuat
'Hoc vien Ky thuat Quan sir 'Tdng cue Cong nghiep Quoc phong
TOM TAT
Ban xuyen du&i ca kieu lim tuyen duac phdt trien nhdm tdng uy luc xuyen thep cua dan ma vdn ddm bdo duac cdc tinh ndng thudt phong ca bdn tuang tir nhu dan trong trang hi. Uy luc xuyen cua dan tdng len do sit dung vat lieu co mat do cao han thep. Su thay ddi ndy ddn den ddc trung hinh hqc vd khd ndng xuyen thep cua dan bi dnh huomg. Dica tren casaddm bdo khd ndng su dung tren vii khi co trong trang hi, hdi bdo xdy dimg mo hinh tinh todn khdo sdt uy luc xuyen thep cm dan sung xuyen dual ca kieu lieu tuyen theo mot so thong so ddc trung cua dan ndy.
Tir lihoa; Dan; Ban xuyen duoi ca kieu luu tuyen; Xuyen thep; On dinh con quay.
ABSTRACT
Armor Piercing Composite Rigid (APCR) are developed to increase the penetration power of bullets while ensuring basic launch features similar to those same calibers in equipment. The penetration force of the bullet increased due to the use of materials with higher density than steel
This change leads to effect on the geometry characters and piercing ability of the bullet. Based on the ensuring the ability to use weapons on the equipment, the paper will be built a model 0/
computational and powerful survey of steel bullets through Ihe Armor Piercing Composite Rigid (APCR).
Keywords: Ammunition, Armor Piercing Composite Rigid (APCR), armor piercing, gyroscopic stability.
ISSN 0866 - 7056
TAP CHf CO KHi V I £ T NAM, S5 1+2 nam 2019
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NGHIEN CU'U-TRAO DOI
1. DAT VAN DE
Hien nay, cdng nghe vat lieu phat tridn da tang cudng kha nang bao ve cho bd binh ciing nhu cac trang tbiet bi quan su trong quan dpi ciia cac nude tren the gidi. Ao giap chdng dan cd miic bao ve III+ theo tieu chuan NIJOlOl .06 cua My (chdng dupe dan 7,62x39mm Idi thep) da trd ldn phd bign. Do vay, viec tang cudng uy luc xuyen cho dan siing la mpt nhu cau tat yeu trong phat trien ky thuat trang bi ciia quan dpi.
De giai quygt duac yeu cau nay, cac hudng giai quygt ve uy luc xuygn thep da dupe neu trong bai bao [4]. Tuy nhign, chua cd dieu kien thuc nghiem chiing minh nhiing luan giai nay. Ngoai ra, can pbai bd sung vao md hinh tinh toan de hoan tbien viec danh gia uy luc
xuyen thep ciia dan xuyen nhd hon ca kigu luu tuygn d cu ly khac nhau va so sanh vdi dan xuygn ldi thep thdng thudng trong trang bi.
2. NQI DUNG
Dan xuygn dudi cd kieu luu tuygn duoc thigt kd ban trgn siing hien cd thudng cd Ididi lupng 6ikn dan nhd hem khdi lugng diu dan thdng thudng ngn phai dam bao cac dieu kien ca ban: Digu kien ben ndng va digu kien dn dinh chuygn dpng ciia dau dan trgn dudng bay.
2.1. Mo hinh vat ly
Cau tao chung cua dan siing xuyen thep cd cau tao ca ban nhu hinh 1.
Hinh 1 Cdc kich thu&c ca bdn cua ddu dan vd so do xuyen vdo bdn thep cua dan xuyin thep:
1) Vo dau dan; 2) Loi xuyen; 3) Cdc chua loi xuyin; 4) Bdn thep; b) Be ddy bdn thep.
12. Cac gia thiet 2.3. Mo hinh tinh toan
- Cac thdng sd khi tupng d a. Dieu ki§n ben nong cua vu khi hien cd:
digu kien chuan.
So tdc Idn nhat ciia dau dan tinh toan theo digu kien ben ndng [2] trdn ca sd dan cd san trong trang bi viet theo gia tri tuang ddi cd dang:
- Vat lieu ddng nhat tren mdi chi tigt cua dan.
- Chi^u sau xuyen thep ciia dan tinh theo cong thilc Gia c6p da ma [7], bo qua anh hucmg cua c6c chiia loi xuyen va vo dau dan.
Tac6:v^,„„^'P->^^°-^-''°->=-^:g^ (1)
Trong do: C^,,, =C„,|,.Vjn_Bpngnangmiengn6ng
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NGHIEN CLfU-TRAOD5I
. I l l
tuong doi cua dan co trong trang By,C^=—^', C = — la khdi luong tucmg d6i cua dau dan va thu6c phong theo cd dan; "tk" - Chi so dan duac t h i a k6; "tb" - Chi s6 dan co trong trang bi;
1 c„
(p - He so tang nang dau dan, (p = (Pi + ~ ~ • m - IChdi luong d i u dan, kg; cp, = 1,03+1,10 tuy thuoc vao loai vii khi sir dung [5].
Cong thiic (1) biSu thi van toe lan nhit ciia d4u dan thoa man dieu kien ben nong khi thay d6i khdi lugng tuong doi cua dau dan.
b. DiSu Iden 6n dmh dSu dan tren duong bay Bi^u thiic tinh toan dieu kien on dinh cua dan xuyen dudi ca kieu luu tuyen da duac xay dung theo tai lieu [3]:
(B....T.,+B..y.+B,^.T,) _ ^^
(A,vd.y„j+Avc.y,+Avk.y^j ^ .^M-i« (2) i^j^n,.i^,-n,. 1,1-0,343H + 0,042.H
Trong^d: a - He sd dn dinh con quay cua dau dan; Bv vd - Md men quan tinh xich_dao tucmg ddi cua chi tiet theo cd dan, kg/m^; Av vd - Md men quan tinh cue tuong ddi cua chi tidt theo cd dan, kg/m'; r[ - Budc xoan ranh ndng phao, d (cd dan); KM - He sd dac trung cho luc can khdng khi Ign dau dan [7], kg/m-*; y - Khdi luprng rieng ciia chi tiet, kg/m'; i^^ - He sd hinh dang dan theo dinh luat luc can 1943; i , - He sd hinh dang dan theo dinh luat luc can Si-a-si;
n^ - He sd chuyen ddi he sd hinh dang dan theo van tdc dau dan [7].
Cac chi sd dudi: ''J' - vd d a n ; " " - cdc chiia ldi xuyen; "j^" - ldi xuygn.
c. Uy luc xuyen thep cua dan.
Su dung cdng thiic Gia-cdp-da-ma chua hieu chinh tinh toan cho mdt vien dan xuygn dupe ban thep cd be day b phai cd van tdc cham vc, gdc cham 9^ ^ 0":
J 0,75 v,0,75 n«.>V.75
K.d°' Thuc t i , vien dan xuyen thep chi co phJn loi xuyen co khdi lu(;mg mix, kich thuoc d|_, xuyen vao muc tieu, do vay, cdng thiic (2) viit theo gia tri tuang ddi:
Trong dd: v^ Van tdc cham ciia dau dan, (m/s); b - Bd day ban thep Idn nhit bi xuygn thung, dm; d - Co dan, dm; m,^ - Khoi lupng cua loi xuygn, kg; d^^ - Dudng kinh loi xuyen, dm; K - He sd dac trung cho digu kien va cham giiia dau dan va cua ban thep [7]; C^,^
- Khdi lupng tuang ddi ciia Idi xuygn theo co dan, kg/m^; d - Dudng kinh Urong ddi cua loi xuyen theo co dan, d^^ / d .
Dan Sling tieu diet muc tieu d cu ly gan, dp cao dudng dan nhd, dieu kien khi tuong lay theo tieu chuan tai mat dat nen cd the coi phuang trinh vi phan xac dinh van tdc ciia dan theo cu Iy x theo tai lieu [8] vidt lai dudi dang gia tri tuong ddi:
dv ^.10'.F(vJ d x C^
Khi dd, dao ham van tdc v ciia dan theo
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NGHIEN CU'U-TRAO D 6 |
quang dudng x phu thudc vao ham luc can F(vJ, khdi luong tuang ddi ciia dan theo cd dan Cm va he sd hinh dang i^^ theo dinh luat siic can khdng khi 1943.
Giai lan luot cac phuang trinh (1), (2), (4), (3), xac dinb duac uy luc xuyen thep cua mpt loai dan xuyen dudi cd kidu luu tuydn trgn CO sd nang lucmg mieng ndng ban Sku lua chpn.
2.4. Anh hu-dng m§t so thong so ket can ciia dan xuy@n thoat vo dn dinh con quay den uy luc cua nd
2.4.1. Cdc thong so ddu vao, thong so khdo sdt a. Cac thdng so dau vao.
- Chpn nang lupng mieng ndng tuang ddi cd gia tri khi ban dan 7,62mmx54R ruot thep tren siing dai Hen PKMS: C^,, - 9,76.10^ J.
- Budc xoan ranh ndng: q ^ 31,5 (siing PKMS);
- Cac thdng so ciia dau dan [6]: Khdi lupng rieng vd dan: y^^ ^ 7900 kg/m^; Khdi luong rieng ldi xuyen: y,^ = 14700 kg/m^; Khdi luang rieng cdc chiia loi xuyen: y^ ^ 2700 kg/m^;
Chigu dai miii dau dan: H = 2;
- Ban thep muc tigu la thep CT3, he sd K trong cdng thiic Gia-cdp-da- ma duac xac dinh tli thuc nghiem bdn dan K56 ldi hop kim Cling cd y^ •- 14700 kg/m\ dudng kinh ldi xuyen 0,67.d, khdi lupng ldi xuyen dat 5,25g, sa tdc tai mieng ndng 733 m/s, he sd dn dinh con quay dat 0,70 [6]. Tinh duac he sd phu hpp Kia 1620.
- Thdng sd khao sat: Kich thudc dudng kinh tuong ddi cua ldi xuyen so vdi cd dan va khdi luong tuang ddi C^ ciia dan.
Pham vi khao sat: d=0,4-0,8;
C^= 12000^27000 kg/m' (tuong duong 5,31-11,94.10-^ kg ddi vdi dan 7,62 mm).
- Cac kdt qua nhan dupe: Khdi lupng tuong ddi cua dka dan C^ (thda man digu kien dn dinh) tuong iing vdi so tdc v^ thda man dieu kien bdn ndng, dudng kinh loi xuyen d, he sd dn dinh con quay cua dan va uy luc xuyen thep cua dan d cac cu ly.
c. Dieu kien khao sat.
- Sa tdc v^ duac chpn ldn nhat theo khdi lugng dan thda man dieu kien ben ndng;
- Uy lire xuyen thep cua dan duac tinh toan trdn co sd thda man digu kien ben ndng va he sd dn dinh con quay ciia dan ldn ban 0.
2.4.2. Cdc ket qua vd binh luan.
Cac tinh toan vdi md hinh toan da xay dung d tren cho ket qua the hien trgn cac hinh 3^6,
b. Thong so khao sdt
0 0 0 17000 22000 2 7 0 0 0
Hinh 3 Moi quan he giiia khdi luang tuang doi
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NGHIEN CU'U-TRAODOI
:;. /'
/ f
/ /
\ / / / /
' 7
Cm= 12000 C m - 1 5 0 0 0 1 ,„=!BO00 Cin=21000 Cin=24000 Cm=2"000
Hinh 4. Moi quan hi giUa dudng kinh phdn tich cue vd he sd dn dinh con quay theo khoi lupng
tuang doi cita dan
Tren co sd bao dam dieu kien ben ndng, khdi lupng tuong ddi cua dau dan giam din tdi so toe cua dan tang (hinh 3). Tren ciing mdt dudng kinh Idi xuyen tuong ddi , he sd dn dinb con quay cua dan bi suy giam khi tang khdi luang tuang ddi ciia dan (hinh 4).
Ci Cling mdt Ididi luong tuong ddi, de tang uy lire xuyen thep, can phai thu nhd kich thudc dudng kinh Idi xuyen (binb 5). Mat khac, he sd on dinh cua cac loai dan xuyen yeu cau kha Idn. Do vay, khdi lupng tuang ddi cua dau dan ldn khdng phii hop vdi dan xuygn dudi cd kieu luu tuyen.
Tir do thi hinh 6, xem xet d ciing mdt he sd dn dinh con quay o ^ 0,6 d cu ly 0-39369.d (0-300m ddi vdi dan 7,62mm):
Dau dan cd khdi lupng tucmg ddi C^ nhd se cd so tdc ldn nhung suy giam tdc dp tren dudng bay rat nhanh, dudng cong bieu dien uy luc xuyen thep ciia dan co dp ddc ldn. Khdi lupng tuong ddi cua dau dan C^ ldn hon cd dp ddc thap hon. 0 cu ly 2,5.I0''.d (khoang 200m ddi vdi dan 7,62mm) uy luc xuygn thep cua dan cd khdi lupng tuong ddi C^ khac nhau chenh lech khdng ldn, d cac cu ly khac cd su phan biet rd rang han.
4.0
3.5
3.0
2.5 b,„n
^^^</-->~:-;.t-7
i _\^-s.';-->-4^>^^
Cm^lfOOO ^ " " ^ ^ ""•'"
Cm=lS00O ^ ^ ^ . s ^
- • - C m=;4UU0
Cm=2:ooo d
Hinh 5 Moi quan hi giiia uy luc xuyen thep d cu ly 100m vd kich thu&c du&ng kinh phdn tich cifc
theo khoi luang tuang ddi cua dgn khi a>0
0 10000 20000 30000
Hinh 6. Moi quan he giiia uy luc xuyen thip vd qudng du&ng chuyen dpng X theo khdi luang
tuang ddi cua dgn khi o=0,6.
Dan Sling cd tam b i n hieu qua d cu ly 52.10^-78.lO^d (400-600m ddi vdi dan 7,62mm), kgt qua tinh toan cho thay khdi luang tuong ddi C^ cua dau dan nhd khdng mang lai hieu qua vg uy luc xuygn tdt nhit khi tam ban tang Ign.
Theo ket qua tren dd thi hinh 5, d cu ly 100m uy luc xuyen thep cua dan cd khdi luong
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NGHIEN CU'U-TRAO 0 6 l
tuong ddi C^ - 18000 kg/m^ (7,96g ddi vdi dan 7,62mm) khi uy luc xuyen thep dat 3,6.d ddi vdi muc tieu ban thep CT3, tucmg duong 27 mm, he sd dn dinh con quay tinh toan dat 0,73. Dan xuyen ldi thep khdi lugng 9,6g (C^^ = 21697 kg/m^) ban thu nghiem uy luc xuyen dat 16mm d cu ly 100m [1], uy luc xuydn thep cua dan xuyen luu tuyen tang len 68,7%.
3. KET LUAN
Bai bao da xay dung md hinh ddng dang tinh toan uy luc xuyen thep cua dan xuyen dudi cd kidu luu tuyen thda man digu kien ben ndng, dieu kien dn dinh tren dudng bay tren co sd mpt nang lupng mieng ndng tuong ddi cua dan cd trong trang bi.
Tu ket qua tinh toan cho mot nang lupng mieng ndng ddng dang vdi dan 7,62mmx54R ruot thep khi ban trgn siing dai Uen PKMS ed the thay, cac tbam sd kdt cau C^, d anh hudng rat Idn dgn digu kien dn dinh va uy luc xuyen thep cua dan. Ban xuydn luu tuygn sir dung ldi xuygn cd ty trpng Idn ngn sii dung khdi lugng tuong ddi C^ nhd va dudng kinh tuong ddi d - 0,60 -^ 0,75 de dam bao digu kien dn dinh con quay va uy lire xuydn thep dugc tdt nhat.
Ket qua nay cd thg su dung trong so sanh uy luc xuygn thep cua cac loai dan xuyen Ihep dn dinh con quay cd trong trang bi va xu hudng thigt ke, cai tien via khi mdi hien nay. •
Ngay nhan bai: 08/01/2019 Ngay phan bien: 11/01/2019 Tai lidu tham khao:
[1]. Biin bdn kiem tra, nghiem thu dgn xuyin 7.62mm - K56 vd dgn xuyen 7,62mm - K53 sdn xudt logt "0"ndm 2013, t^ha may Z\13, Tdng cue Cong nghiep Quoc phong
[2], Tran Van Dinh; Ca s& ly thuyit thiet ke ddu dgn phao, NXB. Hpc vien Ky thuat Quan sir, 2013.
[3]. Tran Van Doanh va Nguyen Diic Tien; Anh hu&ng cua mpt sd thdng sd ket cdu cua dgn xuyen duai ca kiiu luu tuyen vd sung din dn dinh cua nd tren quy dgo. Tap chi Co Idii Viet Nam, so 6/2016.
[4]. Tran Van Doanh, Nguygn Diic Tien va Nguyen Quang Diing; Nghiin CUTA dinh huang phdt trien vd gidi phdp ndng cao uy iuc xuyen cho Sling bp binh theo yeu cdu m&i. Tap chi Khoa hpc va Ky thuat, s6 55, 2013.
[5]. Nguyen Ngoc Du, D6 Van Tho; Thugt phdng trong cua sungphdo, NXB. Hpc vien Ky thuat Quansu, 1976.
[6]. Bui Thi Loc; Nghien cmt, thiit ki, chi tgo dgn 7,62 - K56xuyen do giap (KC.NQ.06.02), Nha may Z113, Tong cue Cong nghiep Quoc phdng, 2015.
[7]. Nguyen Van Thiiy, Tran Van Dinh va Tran Dinh Thanh; Ca s& thiit ke dan sung bp binh, NXB. Hoc vien Ky thuat Quan sir, 2007.
[ 8 ] . A . J I . ^ M H X p H e B C K H H , BHeiUHHfl SaUHHCTHKa, MocKBa «ManiHHOCTpoeHHe», 1972.
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