Second Workshop on Predictive Methods of Analysis for Complex Jointed Structures

第二届复杂节理结构分析预测方法研讨会

• 批准号: 0914917
• 负责人: Lawrence Bergman
• 金额: $ 1.5万
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-04-01 至 2010-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0914917&HistoricalAwards=false
• 关键词: Second; Workshop; Predictive; Methods; Analysis

There has been progress toward understanding dynamic behavior of complex, jointed structures. Due to slip and impact between joint elements, structures are strongly nonlinear and time-varying; yet, they can be found across the full range of manufactured components and systems. Significant understanding has been achieved principally through research programs in the US and Europe by combining analysis, computation and physical experiments over a range of scales. Still, the notion of fully predictive methods of analysis for complex, jointed structures remains elusive. A successful workshop addressing the issue of joints modeling, sponsored by the National Science Foundation and Sandia National Laboratories, was held in October, 2006, in Arlington, VA. A second workshop is proposed, in the UK, during the period April 27-29, 2009, having two major thrusts: (1) guide the development of advanced modeling allowing reliable prediction of the dynamics of joints and interfaces used in engineering structures; and (2) explore and develop new concepts for joint design using new analysis methods to achieve reduced uncertainty and variability. The benefit will be reliable structures with improved resistance to dynamic loads. Economic aspects will be addressed reflecting the belief that improved design methods will result in both economic and technical improvements. The workshop will be unique by virtue of the diversity of its participants. A subset of younger researchers, particularly those from underrepresented groups, will be encouraged to attend and participate in the development of the research road map. Broad dissemination of results will attract researchers to this challenging problem.

在理解复杂的连接结构的动态行为方面已经取得了进展。 由于关节单元之间的滑移和冲击，结构具有很强的非线性和时变性；然而，它们存在于各种制造的组件和系统中。 主要通过美国和欧洲的研究项目，通过结合各种规模的分析、计算和物理实验，取得了重要的认识。 尽管如此，复杂的连接结构的完全预测分析方法的概念仍然难以捉摸。 2006 年 10 月，由美国国家科学基金会和桑迪亚国家实验室主办的关于关节建模问题的研讨会在弗吉尼亚州阿灵顿成功举办。 第二次研讨会拟于 2009 年 4 月 27 日至 29 日在英国举行，其主要目标有两个：(1) 指导高级建模的开发，从而能够可靠地预测工程结构中使用的接头和界面的动力学； (2) 使用新的分析方法探索和开发联合设计的新概念，以减少不确定性和可变性。这样做的好处是结构可靠，具有更好的抗动态载荷能力。 将解决经济方面的问题，反映出改进的设计方法将带来经济和技术改进的信念。 由于参与者的多样性，该研讨会将是独一无二的。 将鼓励一部分年轻研究人员，特别是来自代表性不足群体的研究人员，参加并参与研究路线图的制定。 结果的广泛传播将吸引研究人员解决这个具有挑战性的问题。