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Design of complex system often involves a multitude of decision variables and parameters. In order to relieve the computational burden, manage the complexity in design processes, and achieve concurrent analysis and design, a complex system can oftentimes be decomposed into several subsystems with hierarchical relation according to their functional attributes, physical structures, or scale magnitudes...
The demand of kinematic accuracy is increasing for modern mechanical systems, while elastic deformation will lead to the decline in kinematic accuracy. This paper examines the application of finite element analysis (FEA) method to kinematic error analysis of elastic mechanisms based on Kineto-Elastodynamics model. The simulation of limit state equations of link mechanisms is performed with Back Propogation...
This paper proposes a new simulation model for emergency evacuation of civil aircrafts taking into account of influences from passengers' physical attributes. The new model uses the staggered mesh discretization method to generate evacuation map and the intelligent agent-based model to simulate evacuation process. With the proposed model, artificial passengers are able to enter the same cell if they...
Quantification of Margins and Uncertainties (QMU) is a methodology for assessing the confidence in the performance of complex systems, and has been applied to general engineering areas. In this paper, the concept and process of QMU is introduced at first, and then an implementation framework of QMU is proposed for structural analysis considering uncertainty. The framework is a synthesis of several...
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