Xây dựng mô hình tính toán độ mất cân bằng của đầu đạn súng bộ binh

NGHIEN COU-TRAODOI

XAY DUNG MO HINH TINH TOAN Op MAT CAN BANG

CUA DAU DAN SUNG BO BINH

A NUMERICAL MODEL OF BULLET-HEAD UNBALANCE

Nguyen Thanh Dien

Hge vien Ky thuat Quan su

TOM TAT

Bdi bdo dua ra mo hinh tinh todn do mdt cdn bdng eUa ddu dan siing bg binh dua tren

phuang phdp md phdng Monte Carlo. Ap dung mo hinh vira xdc lap de khdo sdt dnh huong cua cdc

sai sd gia cong cung nhu quy trinh cong nghe sdn xudt ddu dgn din do mdt cdn bdng cua no. Tinh

todn CM thi duac dp dung cho ddu dgn 7,62x39mm.

Tir kh6a: Mdt cdn bdng, cdn bdng dgng, ddu dgn, ngdu nhien.

ABSTRACT

The paper presents a numerical model for simulating the unbalance of bullet head. The

model is based on the Monte — Carlo method and applied to investigate the influences of manufacture

errors and technological factors on the bullet unbalance. The analyzing results for 7,62x39mm bullets

is shown as an example

Keywords: Unbalance; Dynamic balance, equilibrium, bullet head, randomness.

1. DAT VAN DE va anh hudng Idn den do can bing cua dau dan.

Den luat minh, dd mat can bing cua diu dan lai

Khi thilt kl va san xuit diu d^n, ngudi |^ ^^i trong nh&ng nguyen nhan quan trong gay

ta ludn mong mudn cac phan tu ciia dau dan la „ i,;s„-. .• -* ^ • .* • •

, , ^ ... ra men tuong tan mat duone dan va cang quan

cac v^t CO cung true quay, hue doi xung hmh , .;.,., ,

!,«„ .,A .4R 1,.. T u-" ^ ' <_• L • trgng hon doi vai cac sung bo binh do chung CO

hoc va dgng hoc, Tuy nhien, trong qua trinh gia . . * • ,

cdng, chi tao luon ludn tdn tai sai sd giira kich "^oi Jugng tuong ddi giua dan va sung Idn. Dieu

thudc thilt kl so vdi kich thudc thue tl (hay ^^ ^^^ ^^^ su can thilt phai xay dung md hinh

cdn ggi la dung sai). Sai s6 gia cdng eae phin tinh toan do mat can bang cua dau dan, trong do

tir ciia dau dan la dai lugng ngau nhien sinh ra md ta dugc moi quan he giiia dung sai chi tao

mdt each khach quan trong qua trinh san xuit diu dan va do mit can bing cua nd.

ISSN 0866 - 7056

TAP CHf CO KHf VIET NAM, Sd 3 nam 2015

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