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Based on the structure and operation mechanism of the dual-stage lithographic system, fault tree analysis for the key subsystem, wafer stage, is performed. Since the system is very complexity, the BDD (binary decision diagram) and DFTA (dynamic fault tree analysis) technique are introduced to make up the disadvantages of the traditional static FTA (fault tree analysis) method. Event “The kinematic...
In engineering design, to achieve high reliability and safety in multidisciplinary systems, Reliability Based Multidisciplinary Design Optimization (RBMDO) has received increasing attention. In this paper, Mean-value First Order Saddlepoint Approximation (MVFOSA) is introduced and combined with the collaborative optimization (CO) method to deal with the reliability analysis under aleatory uncertainty...
Reducing emissions from deforestation and forest degradation, plus conservation of forest carbon stocks, sustainable management of forests, and enhancement of forest carbon stocks, is a set of steps designed to use market and financial incentives in order to reduce the emissions of greenhouse gases. The paper addresses the role of satellite remote sensing technologies as a tool for monitoring, assessment,...
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...
The relationships between quality characteristics and uncertain factors are unknown or complicated in most practical engineering optimal problems. To solve this problem a robust optimal model based on hybrid response face was proposed. The relationships between quality characteristics and uncertain factors were investigated; the hybrid response surface optimization strategy was set up to balance the...
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