LayOpt: an educational web-app for truss layout optimization
LayOpt: an educational web-app for truss layout optimization
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DOI：
10.1007/s00158-021-03009-8
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发表时间：
2021-08-07
影响因子：
3.9
通讯作者：
Gilbert, Matthew
中科院分区：
文献类型：
--
作者：
Fairclough, Helen E.;He, Linwei;Gilbert, Matthew
一个新的交互式桁架布局优化网络应用程序已开发用于教育用途。这是专为在各种设备上使用而设计的，从移动的电话到台式PC。桁架设计首先通过数值布局优化生成，然后通过几何优化进行合理化。然后，它表明，这些设计可以简化使用一个计算成本低廉的过程，允许用户控制复杂性和结构体积之间的权衡。该过程涉及使用光滑的赫维赛德表示的成员存在变量，与节点松弛力，允许不稳定的中间桁架结构。在这篇文章中提供了网络应用程序的全部细节，从底层的制定到云计算的实现。一系列的数值例子被用来证明网络应用程序的功效，并显示它如何可能被用于教育和实际的工程设置。
A new interactive truss layout optimization web-app has been developed for educational use. This has been designed to be used on a range of devices, from mobile phones to desktop PCs. Truss designs are first generated via numerical layout optimization and then rationalized via geometry optimization. It is then shown that these designs can be simplified using a computationally inexpensive process that allows the user to control the trade-off between complexity and structural volume. The process involves the use of smooth Heaviside representations of member existence variables, with nodal slack forces employed that allow unstable intermediate truss structures. Full details of the web-app are provided in this contribution, from underlying formulation to cloud computing implementation. A range of numerical examples are used to demonstrate the efficacy of the web-app, and to show how it can potentially be used in educational and practical engineering settings.