基于3S技术矿山地质灾害监控及防治研究

随着金属矿采掘规模扩大化发展,高端科技用于地质灾害监控成为主流趋势。3S技术是现代地质监控的先进科技,将其用于矿区勘查作业具有智能化特点,解决了传统人工勘查监控存在的诸多问题。据此,结合3S技术特点,对金属矿区地质灾害监控及防治问题展开研究。     

Numerical research on dynamic response of naval equipments subjected to impact loads

When subjected to underwater explosion,the anti-shock performance of naval equipment is a key factor affecting the fighting capacity and safety of a war ship. For large-scale naval equipment,it is costly to do the shock test for its huge mass and large size. Consequently,the numerical research was carried our to study the shock resistance of the equipment. Taking turbo-charger set for example,its anti-shock performance was studied using software ABAQUS based on the time-domain shock analysis method presented in BV043 /85. According to the analysis results,shock response of typical regions is obtained,some regularity curves are concluded by analyzing the Mises stress of the typical regions,and the weak regions are found out. The study can provide some references on design of turbo-charger set.     

基于机器视觉的薄膜晶点测定系统

晶点是薄膜上常见的一种过聚物缺陷,其存在对光学薄膜、电池薄膜等高端产品产生极大的危害,而人工目视检测容易导致漏检和误捡,因此,本文提出了一种基于机器视觉的薄膜晶点测定系统。该系统采用条纹背光源使晶点特征突显,在傅里叶变换后的频谱图中抑制条纹背景的频率,从而消除条纹背景得到晶点轮廓。对相机进行测量标定,用最小矩形拟合晶点轮廓,测量出晶点尺寸,测量精度可达0.017 mm。该系统实现对薄膜晶点的自动识别与测量,具有重要的工程应用价值和广阔的市场前景。