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In the weapon maintenance and training simulator software system development process, with the object-oriented analysis methods introduced, the software system was modeled by the Unified Modeling Language (UML), and described with case diagrams, class diagrams, sequence diagrams and activity diagrams. The results show that modeling by UML can standardize systems development process, optimize software structure, improve the efficiency of system development and enhance the readability and maintainability. Results of this study for the design and development of weapons maintenance and training simulator software system has a certain significance.

In order to better study the wear state of vital parts of the large scale equipment, and overcoming the disadvantage of small sample of vital parts, we use the least squares support vector machine (LS_SVM) algorithm to predict the wear state of vital parts. Using of quantum particle swarm optimization (QPSO) to optimize parameters least squares support vector machine, and achieved good results. Compared those with the method that use of curve fitting to predict the data development trend, show that this method is superior to the curve fitting method, and has good application value.

In order to investigate the influence of the erosion and wear on artillery ballistic performance, artillery ballistic model was founded, and graphic integration was used for providing the calculation of internal ballistic parameters. Base on this method, the influence of the erosion and wear on artillery internal ballistic performance was analyzed with the help of numerical simulation.

The expressions of voltage, stress and amount of charge of monocrystal piezoelectric generator under concentrated exterior pressure was derived in order to proving the precision and validity of numerical method applied to piezoelectric materials' distribution sensing and the study of operation mechanism ignore the influence of adhesive layer. An analytical model of the monocrystal piezoelectric generator was established by using the mechanical vibration theory. And the effects of the structural and material parameters on the output energy are analyzed.

Acoustic sensoxr array technology is the one of the key technology of passive acoustic detection technology, whether the single array has a good performance on direction will directly affect the accuracy of the locating system. In order to choose the best single array on direction, in this paper, respectively selected representative plane array and spatial array from a number of typical single arrays to analyze, find out the advantages and disadvantages of two single arrays. On this basis, around the idea of integrating the advantage of symmetric spatial array and plane cross five-element array, according to characteristics of the structure of this two kinds of arrays to design a new locating model—spatial five-element array. And compared with two kinds of single array mentioned above, the results of comparison show that the locating accuracy of spatial five-elements array is superior to both kinds of mentioned, and have high engineering value.

This article through to the modern small-bore of empty weapons destroyed fighters of the mechanism of target analysis, according to improve small arms fire destroyed target empty the effective method of probability, based on the high value MEMS sensor and passive g static detection technology, this paper expounds the MEMS sensor and electrostatic detection technology in a new small weapons development to meet the demand of the empty the application of composite fuze. At the same time, to a certain extent, describes this composite fuze work mechanism and method, the composite fuze success can effectively enhance the development of weapons of small empty combat performance.

This paper details the system of MEMS technology, focusing on analysis MEMS device processing and application status. Through the analysis of MEMS technology in the application of MEMS devices, MEMS devices described in the application of the status in modern life, while the survey data produced a MEMS device in the next few years the proportion of market share, and analyse the developments of MEMS devices and development trend.

Magnetorheological (MR) fluid is a new kind of smart materials, which can be transformed from Newtonian fluid into visco-plastic solid rapidly in the presence of magnetic field. In this paper, the material composition, characteristics and constitutive relation of this smart material were discussed. The operational principles of MR devices in flow, shear and squeeze mode were generalized in detail. The design technique of structural parameters and magnetic circuit of MR devices were investigated. Especially, some important technical points on dimension of fluid gap, magnetic core material and the direction of magnetic flux density were sumarized. All of these can give a valuable referrence for MR devices design. As an example, a MR damper in shear-valve mode was designed, and some experiments were carried on it. From the experimental result, it shown that the MR damper has an excellent damping force characteristics. This also proved the design technique put forward by author was validated.