• 中国科技核心期刊
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2015 Vol. 23, No. 5

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Influences of Surface Characteristics of Underwater Vehicle on Its Hydrodynamic Properties
WANG Zai-duo, WANG Wei, ZHANG Xiao-shi
2015, 23(5): 321-325. doi: 10.11993/j.issn.1673-1948.2015.05.001
[Abstract](1464) [PDF 675KB](437)
Abstract:
To optimize the headform design of an underwater vehicle, water tunnel experiment was conducted to analyze the influences of different surface characteristics of the headform on hydrodynamic properties of the vehicle. The headform includes grooved surface, concave surface and smooth surface. The nat...
Optimization Method of Overall Performance Parameters of Torpedo via Simulation Based on Neural Network Response Surface
FAN Ruo-nan, ZENG Jing, REN Qing-sheng, LI Bin
2015, 23(5): 326-331. doi: 10.11993/j.issn.1673-1948.2015.05.002
[Abstract](1163) [PDF 332KB](422)
Abstract:
Underwater acoustic homing simulation can exhibit operational effectiveness of a torpedo in a real environment, however a large number of sample data is needed in the simulation for the overall performance parameters optimization of the torpedo, thus optimization time becomes the bottleneck. Based o...
Compensation Scheme of Amplitude-Phase Error for Multi-Channel Sonar Receiver
CHEN Fa, LI Yong-sheng, LÜ Lin-xia
2015, 23(5): 332-337. doi: 10.11993/j.issn.1673-1948.2015.05.003
[Abstract](852) [PDF 607KB](443)
Abstract:
The inconsistency of pretreatment circuit components of a multi-channel sonar receiver may bring fixed deviation of amplitude-phase consistency to the signal processing at backend. Inspired by the amplitude-phase equilibrium of a multi-channel radar, the authors analyze the measurement methods of si...
Optimization of Searching Beam for Acoustic Homing Torpedo
LEI Ming, ZHANG Jing-yuan, RAO Zhe
2015, 23(5): 338-342. doi: 10.11993/j.issn.1673-1948.2015.05.004
[Abstract](1186) [PDF 302KB](463)
Abstract:
To understand the influence of acoustic homing torpedo searching beam on searching efficiency, the relation between torpedo searching beam width and homing range is derived based on the active sonar equation and the solid angle formula. According to the characteristics of snake trajectory, a model o...
Design and Implementation of Micro Underwater Acoustic Signal Acquisition and Storage System
SHANG Fan, HAO Dong-xu
2015, 23(5): 343-347. doi: 10.11993/j.issn.1673-1948.2015.05.005
[Abstract](822) [PDF 450KB](382)
Abstract:
Based on the advanced RISC machines(ARM) microcontroller and TF card, a micro underwater acoustic signal acquisition and storage system was designed to solve the problem that the underwater acoustic information in test cannot be collected and stored with high fidelity for a long time. High integrati...
Experimental Investigation on Heat Transfer Characteristic of Shell Condenser
HAN Yong-jun, BAI Chao, YANG Cheng-shi, PENG Bo, GUO Zhao-yuan, LU Jun, MA Wei-feng
2015, 23(5): 348-352. doi: 10.11993/j.issn.1673-1948.2015.05.006
[Abstract](734) [PDF 474KB](374)
Abstract:
To reveal the heat transfer characteristic in the shell condenser of a closed-loop thermal propulsion system, experimental research was conducted on a shell condenser with multi-groups helical rectangular channels. The effects of flow rate and temperature of inlet steam on the heat transfer performa...
A Design Approach of Micro Partial Admission Impusle Turbine
JIANG Bin, LUO Kai, GAO Ai-jun, FENG Qi-xi, YI Jin-bao
2015, 23(5): 353-358. doi: 10.11993/j.issn.1673-1948.2015.05.007
[Abstract](1207) [PDF 529KB](500)
Abstract:
For improving the current design method of micro partial admission impulse turbine, a design approach of the micro partial admission turbine is proposed by analyzing the micro turbine’s loss characteristics. In addition, the rationality of the design approach is examined numerically, the variable wo...
Loss and Temperature Analysis of a Coreless Disc Permanent Magnet Synchronous Motor
WANG Jun-jie, MA En-lin
2015, 23(5): 359-366. doi: 10.11993/j.issn.1673-1948.2015.05.008
[Abstract](1008) [PDF 2017KB](566)
Abstract:
Loss and temperature field analysis is important to ensure safe operation of the missile coreless disc permanent magnet synchronous motor (PMSM). According to the performance of the missile actuator, this paper designs a basic structure of coreless disc PMSM, and analyzes the Joule loss, iron loss a...
Numerical Simulation of Combined Liner Formation in Water
FU Lei, WANG Wei-li, LI Yong-sheng, JIANG Ying-zi
2015, 23(5): 367-373. doi: 10.11993/j.issn.1673-1948.2015.05.009
[Abstract](991) [PDF 2007KB](416)
Abstract:
To enhance damage effect of torpedo warhead on large warship, a combined liner with annular-spherical segment/large cone angle structure is taken as the front charging chamber of the torpedo tandem warhead. The combined liner is composed of an annular liner around and a spherical segment liner or a ...
Feasibility Analysis of Underwater Submunition Group Defense Against Torpedo
JIANG Wen-lu, MA Feng, WANG Shu-shan
2015, 23(5): 374-378. doi: 10.11993/j.issn.1673-1948.2015.05.010
[Abstract](1076) [PDF 388KB](376)
Abstract:
Traditional anti-torpedo weapons are difficult to achieve expected interception effect due to the errors of sonar detection and location. To compensate these errors, a method for deploying submunition group is put forward to intercept a torpedo by the cargo projectiles usually used in the ground gun...
Influence of Vessel Evasion on the Dispersion Law of Torpedo Trajectory in Tracking Section
LU Meng-wei, MA Feng, WEI Ji-feng, WANG Shu-shan
2015, 23(5): 379-383. doi: 10.11993/j.issn.1673-1948.2015.05.011
[Abstract](892) [PDF 363KB](457)
Abstract:
Evasive maneuver is the foundation and prerequisite of a vessel defense against a torpedo. By analyzing the battlefield situation in homing tracking section of an acoustic homing torpedo, this paper establishes a mathematical model of a vessel defending against an acoustic homing torpedo, and select...
Conceptual Study on Tactics of Torpedo in Underwater Network Centric Warfare
NIE Wei-dong, WANG Lan, MA Ling
2015, 23(5): 384-387. doi: 10.11993/j.issn.1673-1948.2015.05.012
[Abstract](863) [PDF 1188KB](735)
Abstract:
Information- and network-based torpedo is the critical weapon in underwater network centric warfare(UNCW). It is a type of intelligent weapon for future war. The principal difference between such torpedo and the traditional one lies in the way of obtaining and dealing with information. In this paper...
Numerical Simulation of Torpedo Receiving Tube of False Sea Test Facility Based on CFD
WANG Xian-ming, DUAN Hao, WANG Yun
2015, 23(5): 388-393. doi: 10.11993/j.issn.1673-1948.2015.05.013
[Abstract](739) [PDF 1081KB](374)
Abstract:
Receiving tube is an important component of false sea test facility. Its main function is to receive the launched torpedo coming along guide pipe, and to make the torpedo slow down and stop in it. In this study, the motion processes of a torpedo into the receiving tube are simulated with a series of...
Simulation on Interior Ballistics of Push-Pull Cylinder Type Torpedo Launcher
GUO Yu, LI Zong-ji, REN Lei, LIAN Yong-qing
2015, 23(5): 394-400. doi: 10.11993/j.issn.1673-1948.2015.05.015
[Abstract](1236) [PDF 458KB](358)
Abstract:
To make an underwater unmanned vehicle(UUV), which is small in volume and light in weight, has the ability of launching a torpedo, a scheme of push-pull cylinder type torpedo launcher for an UUV is proposed on the basis of traditional torpedo launcher. And a mathematic model of interior ballistics i...
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