Development of new form finding approach with integrated cutting pattern optimal strategies

四十年来，国际Tentnology公司对织物张力膜结构技术进行了革新。在不列颠哥伦比亚省萨里的总部，该公司向世界各地的租赁机构和工业商业用户销售其产品。该公司使用内部开发的计算机辅助工程软件TentCAD来设计和分析其创新的织物结构。十九年前发展起来的TenCAD是基于当时使用的非线性有限元分析方法。该程序经过多年的改进，但其核心算法并没有改变，仍然是基于过时的有限元分析方法。具体地说，目前的TentCAD软件存在缺陷：用生成的数据制作的原型足尺结构往往与计算机模型不符。形状上的差异以及织物的褶皱都会发生。这些问题需要全面的测试和人工修改，这既昂贵又低效。为了满足当今竞争激烈的市场对先进、低成本、高效的复杂曲面结构的需求，提高TentCAD软件的设计和分析能力是至关重要的。

For forty years, International Tentnology Corporation has brought innovation to fabric tension membrane structure technology. From its Headquarter in Surrey, B.C., the company sells its products to rental agencies and industrial commercial users worldwide. The company uses in-house developed computer-aided engineering software, TentCAD, for design and analysis of its innovative fabric structures. TenCAD, developed nineteen years ago is based on nonlinear finite element analysis methods in use at that time. The program has been improved over the past years but its kernel algorithms have not been changed and are still based on out-dated finite element analysis methods. In details, current TentCAD software has shortcomings: prototype full-scale structures manufactured from the data generated often do not conform to the computer model. Differences in shape occur as well as fabric wrinkling. These issues require full scale testing and manual modification, which are both expensive and inefficient. To meet the demands of today's competitive market with the need for advanced, low-cost, efficient structures with complicate curved surface, it is essential to improve the design and analysis capabilities of the TentCAD software.