GOALI-Faculty and Students in Industry: Reduced Order Aeroelastic Dynamic Modeling of Flexible Airplanes

姓名：Satish S. NairInstitution: University of missouri - columbia项目编号：9979234题目：柔性飞机的降阶气动弹性动力学建模项目摘要：该目标是建立精确的降阶模型，用于分析和预测作用在飞机上的准稳态和动态载荷。将包含非线性气动数据库的刚性飞机模拟与包含非定常气动数据库的柔性飞机模拟相结合，建立一个基本的理论基础。将确定适当的数学技术，以允许开发新的时域降阶“集成气动弹性模型”。接下来，基于该集成模型的技术将被开发用于飞机设计的准稳态和动态载荷预测。用于预测飞机飞行路径的方程，以及作用在飞机上的载荷，本质上是非线性和复杂的。这些方程的精确简化，包括气动弹性效应，对于促进先进飞机设计周期早期预测飞行路径和动态载荷的设计工具的开发非常重要。该项目的工业合作伙伴波音公司（Boeing, Inc., St. Louis）将在行业末端为研究生提供指导，包括使用他们目前使用的结构和气动弹性模型和分析工具。所开发的技术将有助于开发可靠的集成飞机模拟器，从而缩短先进飞机的设计和开发周期。

Name: Satish S. NairInstitution: University of Missouri-ColumbiaProposal Number: 9979234Title: Reduced Order Aeroelastic Dynamic Modeling of Flexible AirplanesProject Abstract:The objective of this GOALI Graduate Student Industrial Fellowship project is to develop accurate reduced order models for analysis and prediction of both quasi-steady and dynamic loads acting on aircraft. A fundamental theoretical basis for integration of a rigid aircraft simulation that includes a nonlinear aerodynamic database with a flexible aircraft representation that includes an unsteady aerodynamic database is to be developed. Appropriate mathematical techniques will be identified to allow development of a new time domain reduced order 'integrated aeroelastic model'. Next, techniques based on this integrated model will be developed to predict both quasi-steady and dynamic loads for aircraft design. The equations used to predict flight paths of an aircraft, and the loads acting on the aircraft, are inherently nonlinear and complex. Accurate simplification of these equations, incorporating aeroelastic effects, is important to facilitate the development of design tools for predicting flight paths and dynamic loads early in the design cycle for advanced airplanes. The industrial partner for this project, Boeing, Inc., St. Louis, will provide mentoring at the industry end for the graduate student supported, including access to the structural and aeroelastic models and analytical tools presently used by them. The techniques developed will be useful to develop reliable integrated aircraft simulators, which would shorten the design and development cycle for advanced airplanes.