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Collaborative Research: Constraint-based Compliant Mechanism Design Using Virtual Reality as a Design Interface

机译:协作研究:使用虚拟现实作为设计接口的基于约束的顺应性机制设计

摘要

The objective of this research is to develop an immersive interface and a design algorithm to facilitate the synthesis of compliant mechanisms from a user-centered design perspective. Compliant mechanisms are mechanical devices which produce motion or force through deflection or flexibility of their parts. Using the constraint-based method of design, the design process relies on the designer to identify the appropriate constraint sets to match the desired motion. Currently this ability requires considerable prior knowledge of how non-linear flexible members produce motion. As a result, the design process is based primarily on the designer’s previous experience and intuition. A user centered methodology towards the design of compliant mechanisms is suggested where the interface guides the designer throughout the design process. This research proposes an algorithm which places an abstract layer between the designer and the design process thereby hiding the complex mathematical calculations and providing an immersive virtual environment for user interaction. A virtual reality (VR) immersive interface lets the user interact with the problem at hand in a natural way with hand gestures, head motion, etc. This enables the designer to input the intended motion path by simply grabbing and moving the object and letting the system decide which constraint spaces apply. The user-centered paradigm supports an approach that focuses on the designer defining the motion and the system generating the constraint sets, instead of the current method which relies heavily on the designer’s intuition to place constraints. The input from the user drives the design process and the system produces a set of possible solutions. This research results in an intelligent design framework that will allow a broader group of engineers to design complex compliant mechanisms, giving them new options to draw upon when searching for design solutions to critical problems
机译:这项研究的目的是开发一种沉浸式界面和一种设计算法,以从用户为中心的设计角度促进顺应性机制的综合。顺应性机构是通过其零件的挠曲或挠性产生运动或力的机械装置。使用基于约束的设计方法,设计过程依赖于设计者来标识适当的约束集以匹配所需的运动。当前,该能力需要关于非线性柔性构件如何产生运动的大量先验知识。因此,设计过程主要基于设计师以前的经验和直觉。建议采用以用户为中心的方法来设计顺应性机制,其中该界面在整个设计过程中指导设计师。这项研究提出了一种算法,该算法在设计者和设计过程之间放置了一个抽象层,从而隐藏了复杂的数学计算并为用户交互提供了一个身临其境的虚拟环境。虚拟现实(VR)身临其境的界面使用户可以通过手势,头部动作等以自然的方式与手头的问题进行互动。这使设计人员可以通过简单地抓住并移动对象并让其进入目标位置来输入预期的运动路径。系统决定哪些约束空间适用。以用户为中心的范例支持一种方法,该方法专注于设计人员定义运动并生成约束集的系统,而不是当前的方法,该方法严重依赖于设计人员的直觉来放置约束。用户的输入驱动了设计过程,系统产生了一组可能的解决方案。这项研究产生了一个智能的设计框架,该框架将使更多的工程师可以设计复杂的合规机制,从而为他们寻找关键问题的设计解决方案时可以借鉴的新选择

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