螺旋桨桨叶宽度的双目视觉测量方法(英文)

Propeller blade width measurement has been extensively studied in the past using direct and indirect methods, and it plays a great role in determining the quality of the finished products. It has surveyed that previous techniques are usually time-consuming and erroneous due to a large number of points to be processed in blade width measurement. This paper proposes a new method of measuring blade width using two images acquired from different viewpoints of the same blade. And a new feature points matching approach for propeller blade image is proposed in stereo vision measurement. Based on these, pixel coordinates of contour points of the blade in two images are extracted and converted to real world coordinates by image algorithm and binocular stereo machine vision theory. Then, from the real world coordinates, the blade width at any position can be determined by simple geometrical method.     

地铁制动能量分析及再生技术研究

针对目前国内城市轨道交通采用电阻吸收方式存在的浪费能量及需加装散热设备的缺点,提出了采用电容吸收的方案,该方案充分利用了制动能量,减小了环境污染。该方案利用Simulink工具建立了地铁制动动态模型,通过仿真得到了地铁在不同初速度下产生的制动能量,仿真结果表明对制动能量进行回收利用将带来巨大的经济效益。     

弯管夹具设计新方法

该项技术具有广泛的推广价值，在弯管夹具领域中，可以达到高效率高质量。     

货物半载加固不良危及行车安全的预防对策

利用系统管理方法，根据事故案例和实际情况，分析了货车装载加固不良危及行车安全的主要原因，提出了相应的尚为可行的对策建议。