Abstract: To design a new grid fin for an underwater unmanned vehicle, a test was carried out to investigate the influ-ences of the frame profile of grid fin and the number of grid plate on the hydrodynamic characteristics of grid fin. Four kinds of grid fins were tested to obtain their hydrodynamic character...
Abstract: Successful recovery of a torpedo in sea trial is closely related to its floating attitude at running end. This paper proposes an intuitive and simple engineering calculation method of torpedo floating attitude at running end by analyzing the factors of influencing the floating attitude and the float...
Abstract: To evaluate the reliability of torpedo storage, Bayesian theory is used to estimate the mean time between fail-ures(MTBF) of torpedo storage. A mathematical model for reliability verification of torpedo storage is established, and the corresponding plan of the reliability verification is formulated....
Abstract: This paper analyzes the bat echolocating model, biomimetically changes the parameters of the model, and uses a modified basis vector to apply the model to the underwater active systems within a high-frequency band. Simula-tion results show that the range estimator based on the biomimetic signal proc...
Abstract: One of the most important countermeasures taken by a submarine against a torpedo is using equipments of acoustic countermeasure to decoy or interfere with the torpedo. The submarine and the equipments of acoustic counter-measure coexist in special time and location, exhibiting multiple targets for t...
Abstract: The prediction and filtering of underwater acoustic signals, especially of reverberation interference and back-ground noise, lay the foundation of underwater target signal detection and processing of non-stationary, non-Gaussian and nonlinear underwater acoustic signals. In this paper, based on the ...
Abstract: The technology of magnetic coupling drive can be applied to the stern shaft seal of the torpedo for attacking at large depth. However, the optimization design and the power loss analysis of the metal-split casing in this technology are difficult. In this paper, the optimization design and parameters...
Abstract: To improve the comprehensive evaluation of a torpedo thermal power system and compare different evalua-tion plans for same system, a performance evaluation index system is proposed based on the experience from related industries in China. The performance evaluation index system is established by usi...
Abstract: An equivalent loading method for laboratory simulation is put forward to solve the problems in existing ex-perimental studies of underwater explosion impact response. In the new method, flyer impact is adopted to achieve the equivalent load of underwater explosion. An equivalent theoretical model is...
Abstract: The trigger sensitivity simulation of anti-torpedo torpedo(ATT) warhead is the key technology for an ATT to detonate warhead by triggering fuze. We establish an incoming torpedo model and an ATT model with the finite element analysis(FEA) software ANSYS LS-DYNA, simulate the ATT hitting the incoming...
Abstract: It is difficult to evaluate the effect of underwater continuous explosion countermeasure against torpedo sonar due to the complexity of tactical application and operational situation in acoustic countermeasure. This paper analyzes the principle of underwater continuous explosion countermeasure again...
Abstract: To overcome the difficulties in application of printed technical manual to torpedo′s usage, storage, and up-dating, the interactive electronic technical manual(IETM)-based usage and maintenance of a torpedo are explored. First, the current development status and key technology of the IETM are analyz...
Abstract: By analyzing the minimum range and shooting distance of a torpedo, it is concluded that the minimum range of a sub-launched torpedo is the unique parameter to describe its minimum shooting area in certain shooting conditions, according to the meeting principle of a sub-launched torpedo. The factors ...
Abstract: Before torpedo attack, the fire control system needs to calculate maximum hitting probability(MHP) at certain firing position based on certain mathematical model for commander′s attack decision. For the purposes of simplification of the model and conveniently embedding the model into the system, the...
Abstract: To meet the requirement of battle and training, the conventional wire-guided torpedo simulator was improved. The improvement is based on complex programmable logic device (CPLD) and C++ Builder, and adopts the structure of “industrial personal computer(IPC)+ISA bus+ CPLD+ personal computer(PC) softw...
Abstract: To improve the antisubmarine ability of a high speed auxiliary ship, two basic structure schemes of elastic rubber launcher for a torpedo are put forward according to the characteristics of the auxiliary ship. Based on the schemes, a mathematic model of torpedo interior trajectory is built by using ...
Abstract: Externally hung torpedo on an underwater unmanned vehicle(UUV) is of great tactical significance in warfare. Because UUV is small in volume and light in weight, its movement state will change when a torpedo swims out from it. In this paper, to analyze quantitatively the parameter change for verifyin...
1993 bimonthly
ISSN: 2096-3920
CN: 61-1509/TJ
Editor-in-chief:Chunpeng DONG
Executive Chief Editor:Weijun CAI
Sponsor:China State Shipbuilding Corporation Limited
Sponsored by:Xi’an Precision Machinery Research Institute The Chinese Society of Naval Architects and Marine Engineers