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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...
Many imperfect maintenance models have been developed to mathematically characterize the efficiency of maintenance activity from various points of view. However, the adequacy of an imperfect maintenance model must be validated before it is used in decision making. The most adequate imperfect maintenance model among the candidates to facilitate decision making is also desired.
To better describe the reality that repaired systems are neither in “as good as new” nor “as bad as old” conditions, many imperfect maintenance models have been developed in the past decades to mathematically characterize the maintenance quality from various points of view. However, without complete knowing the potential physics of failures and the mechanism of improvement from repair, but only with...
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