Second Workshop on Predictive Methods of Analysis for Complex Jointed Structures

在理解复杂的、连接的结构的动态行为方面已经取得了进展。由于连接件之间的滑动和碰撞，结构具有强烈的非线性和时变性；然而，它们可以在所有制造的部件和系统中找到。主要是通过美国和欧洲的研究计划，结合各种尺度的分析、计算和物理实验，实现了重大的理解。尽管如此，对复杂的、连接的结构进行完全预测的分析方法的概念仍然难以捉摸。2006年10月，由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成功研讨会在弗吉尼亚州阿灵顿举行。拟于2009年4月27日至29日期间在英国举办第二期研讨会，其主要目的有两个：(1)指导高级建模的发展，从而能够可靠地预测工程结构中使用的接头和界面的动态；以及(2)使用新的分析方法来探索和开发联合设计的新概念，以实现减少不确定性和变异性。好处将是可靠的结构，提高了对动态载荷的抵抗力。将讨论经济方面的问题，反映出这样一种信念，即改进的设计方法将导致经济和技术的改进。由于参加者的多样性，讲习班将是独一无二的。将鼓励一部分较年轻的研究人员，特别是来自任职人数不足的群体的研究人员参加和参与研究路线图的制定。结果的广泛传播将吸引研究人员研究这一具有挑战性的问题。

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.