Integrated Design And Analysis Of Embedded Information System And

Embedded muzzle vibration testing equipment is an important part of artillery in the future. This thesis took one towed howitzer as research object, the embedded information system of cannon, the part of the general circuit and the buffer structure scheme were designed. FE (finite element) models composed of projectile, rifled barrel and testing equipment were established, the stress of the test equipment under the condition of firing load was analyzed by finite element simulate. Besides, combined with the theory of buffering mechanism, an optimal design of the cushioning and protective structure was carried out. Main contents in this paper as follows:(1) Aimed at the construction of informatization artillery, the significance of research of embedded muzzle vibration testing equipment is put forwarded. Combined with the existing artillery testing technology, the various advantages and disadvantages of test device was analyzed, in order to monitor main unit of data information of the artillery, the various test schemes and each information unit system composition block diagram is made. According to the functional requirement, the overall design of embedded muzzle vibration system of information is designed.(2) According to the proposed test plan, the muzzle velocity was chosen as the object, and the part general circuit of cannon embedded type information system was designed. The angular velocity signal of gun was analyzed, and the hardware and software of embedded device was designed by PADS and IAR Embedded Workbench. By measuring the power dissipation of test device, the system power supply was chosen and the system pass the feasibility of this method by stationary test.(3) By summarizes the existing artillery test technology, the part of embedded muzzle vibration testing equipment structure was designed. According to the design requirements, some test device structure diagram was designed and elaborate the composition and function of each test device. For a range of issue of electronic devices used on artillery easily damaged, a research about buffer protection device of testing equipment used on artillery was made.(4) For the test device protection problem, a launch process of a large caliber gun was simulated by ABAQUS/explicit solver, and analyzing the damage reasons, combined with buffer protection mechanism, the buffer structure improvement method is put forward. In order to get the best combination of buffer layer materials, ABAQUS software was integrated by Isight platform, the BP neural network approximation model was made to replace a finite element mode of the artillery coupling with the projectile, and the genetic algorithm was employed in the optimization calculation about the combination of buffer layer materials.