Ordinance Engineering College

Shijiazhuang, China

Ordinance Engineering College

Shijiazhuang, China
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Chen W.,Academy of Armored force Engineering | Chen C.,Academy of Armored force Engineering | Shi X.,Ordinance Engineering College | Gao H.,Nanjing Artillery Academy
Xi Tong Gong Cheng Yu Dian Zi Ji Shu/Systems Engineering and Electronics | Year: 2017

In the offensive operation, equipment is constantly being damaged, but the battlefield rush-repair time and power are limited. Therefore, a real military problem is put forward as follows. In order to get more fighting time for damaged vehicles to participate in operation again as much as possible, the problem is how to dynamically choose the most suitable damaged equipment for each repair group, how to divide tasks between different groups, and how to determine execution sequence in the same group. Then the dynamic battlefield-rush-repair-task scheduling problem in the offensive combat is abstracted as a new problem. Its mathematical model is established and a variant genetic algorithm is designed to solve it. A scheduling example is solved by using Matlab with 28 equipment to be repaired and 3 repair groups. Results show that the proposed model is scientific and reasonable, and the algorithm is convenient and efficient, which can dynamically track the change of the optimal solution. © 2017, Editorial Office of Systems Engineering and Electronics. All right reserved.

Shi X.-M.,Ordinance Engineering College | Chen C.-L.,Academy of Armored force Engineering | Shi W.-H.,Academy of Armored force Engineering | Zhang H.-Q.,Academy of Armored force Engineering
Xi Tong Gong Cheng Yu Dian Zi Ji Shu/Systems Engineering and Electronics | Year: 2014

With consideration of the fact that the failure rate of weapon is different in different occasions, the optimization problem that the maintenance equipment system is formed by assigning the maintenance device of weapon to the maintenance equipment, is studied, with promotion of a function programming model for maintenance equipment, whose solving model is studied by using the genetic algorithm. First the maintenance equipment function programming problem is analyzed from three aspects which include species of the maintenance equipment, failure rate difference, and the volume of the maintenance part, aimed at the maximum of the failure rate sum which can be maintained by maintenance equipment in main occasion, the maintenance equipment assignment model is built. And then, the fitness function of genetic algorithm is built based on the optimal theory of failure rate sum in main occasion of maintenance equipment, and the initial range is defined through solving the amount problem of maintenance equipment species, accompanied by the analysis of genetic algorithm operation. At last, by using Matlab software, an example of maintenance equipment programming problem with 40 maintenance parts in seven occasions is given. It is proved that the model given is scientific and reasonable, and the solving method is convenient and efficient.

Shi X.-M.,Ordinance Engineering College | Shi X.-M.,Academy of Armored force Engineering | Chen C.-L.,Academy of Armored force Engineering | Zhao M.,Ordinance Engineering College | Shi Q.,Ordinance Engineering College
Binggong Xuebao/Acta Armamentarii | Year: 2014

Function partitioning of maintenance equipment is studied based on the fact that failure rates are different in different usage conditions. With the consideration of the types, usage occasion and volume of maintenance equipment, an assigning model from maintenance device to maintenance equipment is built for the failure rate in main occasion of maintenance equipment. The maintenance devices can be initially assigned to maintenance equipment by its main usage occasion without consideration of volume limitation, and the assigning correction of maintenance devices is conducted based on the difference between occasion failure rates with the consideration of volume limitation. An assigning algorithm of two maintenance equipment is proposed, and an example is given, which proved the model and solution algorithm are scientific.

Peng L.,Ordinance Engineering College | Liu L.,PLA of 95869 | Deng A.,PLA of 95869
Advanced Materials Research | Year: 2012

In the text through analyzing the maintenance and support system of surface-to-air missile equipment is given a process model for the corrective maintenance, preventive maintenance. Spare parts supply and support equipment usage. The model can be used for the surface-to-air maintenance and support analysis and has reference to the maintenance and support simulation research for the other equipment with its good universality. © (2012) Trans Tech Publications, Switzerland.

Lian G.Y.,Ordinance Engineering College | Huang K.L.,Ordinance Engineering College | Chen J.H.,Ordinance Engineering College | Gao F.Q.,Ordinance Engineering College
International Journal of Computer Mathematics | Year: 2010

Radial basis function (RBF) networks are widely applied in function approximation, system identification, chaotic time series forecasting, etc. To use a RBF network, a training algorithm is absolutely necessary for determining the network parameters. The existing training algorithms, such as orthogonal least squares (OLS) algorithm, clustering and gradient descent algorithm, have their own shortcomings respectively. In this paper, we propose a training algorithm based on a novel population-based evolutionary technique, quantum-behaved particle swarm optimization (QPSO), to train RBF neural network. The proposed QPSO-trained RBF network was tested on non-linear system identification problem and chaotic time series forecasting problem, and the results show that it can identify the system and forecast the chaotic time series more quickly and precisely than that trained by the particle swarm algorithm.

Peng L.,Ordinance Engineering College | Jia X.,Ordinance Engineering College | Wang Y.,Ordinance Engineering College
ICQR2MSE 2011 - Proceedings of 2011 International Conference on Quality, Reliability, Risk, Maintenance, and Safety Engineering | Year: 2011

The maintenance and support system is analyzed on surface-to-air missile, and the process model is proposed on the repair maintenance process, prevention maintenance process, spare parts supply process and equipments usage process, the model can be used in the maintenance and supportability, and it has general use and reference to other equipments. © 2011 IEEE.

Shi L.-Y.,Ordinance Engineering College | Zhang Z.-B.,Ordinance Engineering College | Song W.-Y.,Ordinance Engineering College
Xitong Fangzhen Xuebao / Journal of System Simulation | Year: 2010

In geomagnetism vector detecting, blind areas will be come forth while magnetoresistive sensor is fixed on rocket body strapdown. The posture transformation matrix creates the unsolvable phenomenon in the blind spot as a result of the singularity, which may obtain trajectory information by the GPS measurement, the application of the quasi-Newton method is adopted to solve it. It shows by the data from simulation analysis that this method can obtain the convergence rate and the solution precision close to Newton method, while avoids to matrix inversion operation.

Peng L.,Ordinance Engineering College | Xiong Q.,PLA of 94907 | Zhu Z.,PLA of 94907
Advanced Materials Research | Year: 2012

The method of spare parts support ability possibility is put forward on the operational readiness, and the relation model is built on spare parts and each spare part possibility, the optimized method and arithmetic is established on the lower total expenses under the certain war preparedness request, it is guidance to store the spare parts on the surface-to-air. © (2012) Trans Tech Publications, Switzerland.

Shi L.,Ordinance Engineering College | Song W.,Ordinance Engineering College | He X.,Ordinance Engineering College | Zhang Z.,Ordinance Engineering College
Advanced Materials Research | Year: 2012

Owing to the increase in the types of battle field targets and the improvement of their velocity, flexibility and protection ability etc., the anti-air missile warhead with multiple explosive forged projectiles goes upon the stage. The warhead is based on multiple explosive forged projectiles with an alternate angled and layered structure. Thanks to its distributed explosive way and measures of safety barrier and anti-interference, all energy of this warhead can be controlled to release intensively in the dynamic damage volume, and damage the air target seriously even at a long distance. So it is used to attack the armor-protected targets in the air, and slso accomplish the task of distributing antimissile and antiaircraf ammunition etc. © (2012) Trans Tech Publications.

Li D.-W.,Ordinance engineering college | Ren G.-Q.,Ordinance engineering college | Yang Z.-S.,Ordinance engineering college | Li B.,Ordinance engineering college
Applied Mechanics and Materials | Year: 2013

In order to study the reliability of the gun contained electronic equipment, take the fire control computer as an example, establish its physical model and then based on the modal analysis theory, dynamics simulation analysis for fire control computer is done by ANSYS. For vibration and shock which cause by the gun firing is harm to the equipment and the measures for vibration resistance is put forward. Through the contrast of the natural frequency of vibration isolated before and after finding that oscillator can effectively reduce the system nature frequency, and this could make the response amplitude is less than the excitation amplitude based on vibration isolator transmissibility curves. It could provide good conditions to ensure the box and its internal printed circuit board to meet the multiplier rule. © (2013) Trans Tech Publications, Switzerland.