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This paper presents accurate electromechanical analysis of piezoelectric beam-type transducers with interlayer slip, based on the Euler??Bernoulli beam theory. The closed solutions of two different kinds of piezoelectric beam-type transducers under external harmonic loads are derived. The effects of the interfacial slip parameter on the responses of the transducers are discussed. Comparisons with...
An improved Gauss-Newton-Marquardt (GNM) algorithm is proposed in the paper for displacement back analysis of casing external loads in salt stratum to optimize the solution based on traditional GNM algorithm. In the improved GNM algorithm, the direct solution method of partial derivative used in stochastic finite element method is adopted to substitute the difference method employed in traditional...
In order to address the problem of time constraints in the complex workflow system, in this paper temporal reasoning and simplification analysis of fuzzy timing Petri nets are proposed. Firstly, fuzzy temporal reasoning method of three basic workflow patterns based on fuzzy timing Petri net is presented, so that the total time delay formula for each pattern is obtained. Then, the simplification method...
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