a!i!* NGHIEN CUU-TRAODOI VT6| U'U THAM S6 K^T CAU V6 KHOANG TEN LI>A CHju D O N G T H Q I R A N G BUOC D O B ^ N V A ON D I N H PARAMETER OPTIMIZATION OF MISSILES FUSELAGE SUBJECTED TO STRENGTH AND STABILITY CONSTRAINTS Vu Tung L3m, TVan Ngpc Thanh, Nguyen Van Chuc Vien Khoa hpc va Cdng nghd Quan su TOM TAT Bdi bdo de c^ tdi vdn de thiet lap va gidi bdi toan toi tru tham so kit cdu vo khoang ten lira Id nfiirng kit cdu vo gia cudng chiu rdng bupc ben vd on dinh Bai todn dugc thiet lap theo mo hinh thong fee Phuang phdp sir dung de gidi bdi todn Id phuang phdp tien hoa vi phdn ket hgp vai phuangphdp hdm phgt Gidi thugt va chuang trinh bdng Matlab da dugc xdy dung vd dp dung gidi quyet vdn de toi uu tham so kit cdu cho vo khoang K2 tin lira Kh-35E Tit khoa: Toi mt tham so kit cdu, vo gia cuang, da rdng buoc phuangphdp tiin hoa viphdn ABSTRACT This report refers to formulate and solve structure parameter optimization for missilesJuselages, which are stiffened shell, subjected to strength and stability constraints Mathematical model is formulated by using statistical model Algorithm based on the combination differential method and penalty implemented method is proposed for for solving this problem evolution This algorithm was in Matlab code and applied to solve some examples Keywords: Structure parameter optimization, stiffened shell Multi-constraints, differential evolution method '^ ISSN 0866 - 7056 TAP CHf CO KHf VIET NAM, Sd 10 nam 2015 www.coldiivietnam.vn NGHIEN cufu - TRAO Ddi l.DATVANDE 2.1 Bien thi^t ke KSt cau vo gia cuong dugc img dung rpng rai ky thu^t hang khong de che tao cac ket cau vo khoang may bay, ten lufa Chung CO kha nang thoa man hau het cac yeu cau co ban nhu: ben, nhe, don gian Trong thiet ke ket cau dang can phai xac dinh dugc cac tham so cua cac phan tu ket cau nhu: day cua vo, hinh dang, kich thuoc dac trung eua gan de ket cau dam bao kha nang lam viec voi kh6i lugng nho nhat Cong viec co the coi la mot qua trinh t6i uu tham so ket cau Trong thoi gian g4n day, da CO nhieu nha khoa hgc tap trung giai quyit bai toan thiet ke toi uu k8t ciu hang khong Trong cac cong trinh da cong b6, cac tac gia chii y8u su d\mg each tiSp can true tijp voi cac biSn thife ki la kich thuoc ciia cac phjn hi kk cku ti thife lap bai toan D8 giai bai toan napa(J)ecb [9], naHKCBHi [8] su dimg phuong phap gradient, Barski [3], Bagheri [2], Hernandez [5], su dung phuong phap thuat giai di truySn Tuy vay, cac nghien ciiu kk tren co hjn ch6 sau: Chi co kha narig giai quyfe cho mgt 16p hep cac kfe c4u; khoi lugng tinh toan rit Ion nen kho ap diing cho cac bai toan phuc tap De CO the xay dung dugc miSn thife ki bao quit toan bg cac phuong an kha di t6t hon ca la sir dyng mo hinh thdng ke Trong m6 hinh nay, hinh djng va dac trung cua cac phin tir kit cau dugc dua vao mgt bang co thii tu Mgt bp gia tri cdc chi so thii tu cho phep xac dinh cac tham s6 dac tnmg ciia cac phan tii ciu nen ket cSu Nhu v$y, bien thiet ke la thu tu bang tham so va nhan cac gia tri nguyen: {x} = {x xV ,X^GN (1) Trong dd: n la sd lupng cac phin tii kdt cau cac rang budc cua bien thiet kd cho dudi dang sau; lHKaMHH H onTHMHsauHH MocKBa: MAHHPHHT, 2008 ISSN 0866 - 7056 TAP CHl CO KHl VlfiT NAM, Sd 10 nam 2015 www.cokhivietnam.vn ... chfu life khoang K2 Bdng Gid tri cdc tham sd tdi trong, vgt lieu vd gi&i hgn ,j^»°e TT Hinh Sa dd gidi thugt cho bdi todn tdi uu tham 1sd ket cdu vo gia cu&ng T I iTU THAM SO KET CAU KHOANG K2TENLtrAKH-3SE... bien dugc cai tiin nhu sau: 4.2 Sb lifu diu vao cua bai to^n toi mi tham so k@t cau vo khoang K2 [17, ,;>J:,- Sa dd kdt ciu cua khoang K2 ^ liia Kh-35E cd dang vd tru dupc gia cudng vanh mat dau,... im tham so kfe ciu vo gia cuong chiu da rang bupc sii dung mo hinh thSng ke, sii dung phuong phap tiSn hoa vi phan kfe hgp voi phuomg phap ham phat d8 giai bai toan THIET LAP BAI TOAN TOI UtJ THAM