Topology Optimization on the Cloud: A Confluence of Technologies
Topology Optimization on the Cloud: A Confluence of Technologies
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DOI：
10.1115/detc2015-46137
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发表时间：
2015-08
期刊：
影响因子：
--
通讯作者：
K. Suresh
中科院分区：
文献类型：
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作者：
K. Suresh
拓扑优化是一种生成设计以满足特定工程要求的系统方法。如今，它在包括飞机、汽车和机械在内的多个行业中得到了利用，并有力地补充了新兴的增材制造领域。然而，广泛使用的拓扑优化已被阻止，由于高计算成本和显着的软件/硬件投资。在本文中，我们提出了一个基于云的拓扑优化（CTO）框架，以克服这些挑战，从而促进更广泛的使用拓扑优化。CTO需要多种方法和技术的融合，本文讨论了每一种方法和技术。首先，CTO需要一种快速的3D拓扑优化方法，可以快速响应多个客户端。在这里，帕累托，拓扑灵敏度为基础的方法被用作骨干的框架。PareTO依赖于有限内存的有限元分析和一个缩小的线性求解器，旨在利用多核和众核架构。在客户端，该框架依赖于基于JavaScript的WebGL和ThreeJS技术来显示3D几何形状，并在浏览器中制定结构问题。最后，利用Ajax、PHP和HTML5技术实现异步和健壮的用户体验。此框架的实现可在www.cloudtopopt.com上获得;要使用此免费服务，必须在浏览器中启用JavaScript。Copyright © 2015 by ASME
Topology optimization is a systematic method of generating designs to meet specific engineering requirements. It is exploited today in several industries including aircraft, automobile, and machinery, and it strongly complements the emerging field of additive manufacturing. Yet, the wide-spread use of topology optimization has been deterred due to high computational cost and significant software/hardware investment.In this paper, we propose a cloud based topology optimization (CTO) framework to overcome these challenges, thereby promoting the wider use of topology optimization. CTO requires a confluence of several methods and technologies, each of which is discussed in this paper.First and foremost, CTO requires a fast 3D topology optimization method that can respond rapidly to multiple clients. Here, PareTO, a topological sensitivity based method is used as the backbone of the framework. PareTO relies on limited-memory finite element analysis with a deflated linear solver that is designed to exploit multi-core and many-core architectures. At the client-end, the framework relies on JavaScript based WebGL and ThreeJS technologies to display 3D geometry and formulate structural problems within a browser. Finally, Ajax, php and HTML5 technologies are exploited to achieve asynchronous and robust user experience. An implementation of this framework is available at www.cloudtopopt.com; to use this free service, JavaScript must be enabled within the browser.Copyright © 2015 by ASME