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71.
本文介绍了用AutoCAD完成机床主传动系统三维实体造型,用VisualC 、Visual LISP等工具完成主轴箱轴承、齿轮、轴等部位在运行中出现故障时的立体动画。经压电晶体加速度传感器实时检测机床的振动信号,对这些信号进行分析(统计处理、频谱分析等)提取出故障特征,经人工神经网络、模糊决策及专家系统等手段进行决策,判定故障部位和程度,可在微机上直观地观察主轴箱在运行过程中,各故障具体部位及损伤程度的虚拟现实情况。 相似文献
72.
为避免二维波方程中的大量计算,使用二维波动方程的中心差分近似来模拟流体运动.在该方法上实现了基于物理的浮力和阻力模型,模拟物体在流体表面的漂浮.在OpenGL上实现上述方法,实验证明该方法实现简单,大大降低了运算代价. 相似文献
73.
We present a digital laboratory safety training platform called AALTOLAB which we have developed to address the need for more flexible and engaging ways to teach laboratory safety for chemical engineers. AALTOLAB consists of an interactive, web-based 360° virtual laboratory, integrated with a Moodle-based digital exam with automatic assessment. The modular platform offers different modules from general comprehensive laboratory training to more specialised modules. Students and staff can freely navigate in the laboratory rooms at any time and interact with different action points including interactive videos, slideshows, and minigames. Our technical solution allows teachers even with limited technological skills to easily modify the training materials in real time. The relationship of students’ learning experiences and level of learning is also discussed. We believe that our safety training concept facilitates deep learning and students’ engagement, thus improving safety culture in our laboratories. 相似文献
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液压系统设计与试验的虚拟样机技术 总被引:4,自引:0,他引:4
本文在介绍了虚拟样机技术的基础上,分析和阐述了开发具有虚拟样机功能的液压系统设计与试验软件的模型。 相似文献
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《Expert systems with applications》2014,41(5):2174-2185
Mobile augmented reality has gained popularity in recent years due to the technological advances of smartphones and other mobile devices. One particular area in which mobile augmented reality is being used is library management. However, current mobile augmented reality solutions in this domain are lacking in context-awareness. It has been suggested in the literature that agent programming may be suitable at overcoming this problem, but little research has been conducted using modern mobile augmented reality applications with agents. This paper aims to bridge this gap through the development of an agent-based, mobile augmented reality prototype, titled Libagent. Libagent was subjected to five experiments to determine its suitability, efficiency, and accuracy for library management. The results of these experiments indicate that agent-based mobile augmented reality is a promising tool for context-aware library management. 相似文献
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《Journal of Manufacturing Systems》2014,33(4):498-507
Virtual manufacturing systems can provide useful means for products to be manufactured without the need of physical testing on the shop floor. As a result, the time and cost of part production can be decreased. There are different error sources in machine tools such as tool deflection, geometrical deviations of moving axis and thermal distortions of machine tool structures. Some of these errors can be decreased by controlling the machining process and environmental parameters. However other errors like tool deflection and geometrical errors which have a big portion of the total error, need more attention. This paper presents a virtual machining system in order to enforce dimensional, geometrical and tool deflection errors in three-axis milling operations. The system receives 21 dimensional and geometrical errors of a machine tool and machining codes of a specific part as input. The output of the system is the modified codes which will produce actual machined part in the virtual environment. 相似文献