Research On The Optimization Of Gun Barrel Bore Detecting System

The detection of the gun barrel bore is indispensable in the inspection projects of the artillery. The quality of the barrel bore is a key factor that has an influence on the performance of cannon. The detection technology of the gun barrel bore has been a vital technical problem in the field of detection. With the rapid development of computer science and optical technology, CCD imaging technology and laser scanning methods have been used to acquire cannon barrel image. However, there are still some obvious deficiencies in operation and quantities analysis in the previous detection systems. It will be a significant task to design a more reasonable structure for obtaining more accurate information of the barrel in the artillery bore detection field.In this paper, we focus on the measuring rod of the gun barrel bore detecting system. The topology optimization model of the measuring rod is set up based on the variable density continuum structural topology optimization method. In order to minimize the static flexibility and to maximize the low vibration frequency simultaneously, the compromise programming approach is employed to optimize multi-objective topology. Optimization results show that an ideal distribution of material is acquired, which enhances the natural frequency of structure and reduces the structure quality, thus a synchronized multi-objective optimization is achieved. We validate the ultimate optimized topology with statics and dynamics analysis. The results show that both global stiffness and low frequency of the optimized measuring rod have been improved significantly which verify the rationality of the design. Finally, the replication experiment based on the high speed camera is set out to prove the rationality of the optimization.In this paper, the detection precision of the gun barrel bore detecting system has been improved significantly by using the method of multi-objective optimization. With the new institutions, the structure of the device as well as its installation and debugging process have been simplified. It makes a contribution to the use of the gun barrel bore detecting device in the artillery bore detection field.