引信系统与工程

Redundancy in Fuze System （冗余设计）
Safety and Arming devices arranged in series for safety （冗余保险） A B S: Safety A B
System
Detonators and Target Sensors arranged in parallel for reliability（并联发火） A B A B
Active Semi-Active Passive
Time Fuzes（use Setter） Point Detonating Fuzes Delay Fuzes Command Detonate Fuzes

Proximity Fuzes（近炸种类）
Active
Semi-Active

定义：利用环境信息和目标信息，或按指令信息
，在相对于目标最佳位置或时刻起爆或引燃战斗 部装药的控制系统。引信还可以具有控制续航发 动机点火、修正弹道或弹体定位等功能。
Functions of the Fuze
Keep weapon safe （保险） Arming weapon（解除保险） Detect or recognize target（目标探测、识 别） Initiate detonation（点火、引爆） Determine direction of detonation（定向起 爆） Corrective trajectory （弹道修正） (special fuzes)
Impact
Safety & Arming Reliability (安全措施)
Safety
& Arming Sensor:
Barrier between the TDD and the warhead（隔爆机构）
Safety
- Devices placed in series in firing path for safety. （保险件） Reliability - Components placed in parallel in firing path for arming & firing reliability.（冗余设计）
隔爆原理图
Baidu Nhomakorabea保险件
隔爆机构
Activation Forces
(To arm and/or detonate)
Setback
=> Fuze sets back with great force when weapon is launched/fired. Centrifugal => Fuze is thrown to outside of casing as bullet spins. Creep => Fuze “creeps” slowly forward as weapon slows due to air friction. Impact => Fuze moves forward with great force when weapon impacts target.
Introduction

What’s the main purpose of a fuze?
Trigger explosive reaction（起爆） Keep weapon safe when not needed（安全）
Must be reliable and dependable（可靠性） Must be safety（安全性）
or Contact（触发） Timer（定时） Proximity - Fuzes ability to detect the physical presence of the target （近炸） Instruction- Command(指令) Ambient - Environmental factor（周炸）

Missile Fuzes:
Air-to-Air Air-to-Surface Surface-to-Air Surface-to-Surface
Rocket Fuzes Bomb Fuzes Mine Fuzes (Exploders)


Torpedo Fuzes (Exploders)
System
F: Fire
S F F F S F F F F
S S S
S F S
F S S
F F F
S S S
Fuze Classification (by weapon application)

Gun Projectile Fuzes:
Rotating Ammo Non Rotating Ammo
弹药与引信
AMMUNITION AND FUZE
子母弹
子弹及引信
迫击炮、炮弹、引信
小口径弹药引信
激光近炸引信
反坦克装甲弹药
多选择引信
电子时间引信
鱼雷引信
空炸引信
导弹引信
弹道修正引信
Fuze Classification (by fuze operation)

Proximity Fuzes:
Brief Introduction on Modern Fuzes
By Li Haojie Mechanical School of NJUST
Learning Objectives

The basic functions of a fuze system in a warhead.（基本功能） The functions of the three basic fuze components: target sensors, safety and arming devices, and detonating trains.（构成） The concepts of reliability and redundancy as they apply to safety and arming device.（安全性、可靠性与冗 余设计） The basic types of fuzes.（种类）
Target
Passive
Emitter
Target
Example :
Thanks !

Basic Fuzing System（结构）
Fuze
Detonator
TDD (sensor)
Target Detecting Device
Safety And Arming Device
Explosive Output Lead
Warhead Warhead
Target Detection and Recognition （目标探测方式）