An engineering methodology for calculating the stress-strain state and evaluating the strength of a contrast layered coating of a flat part has been developed under the action of the local load distributed along a lin...
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An engineering methodology for calculating the stress-strain state and evaluating the strength of a contrast layered coating of a flat part has been developed under the action of the local load distributed along a line. An external hard part of coating is considered as a piecewise-homogeneous plate, the internal soft layer is subjected to Winkler’s hypothesis of the stress and displacement proportionality. The stress distribution in the layered coating was studied and the safety factor was determined depending on the mechanical properties and thickness of the components. The example of simulation was considered for copper/nickel/chrome coating. In general, it was established that the limit state of a non-homogeneous coating could be determined not by the maximum equivalent stress, but by the minimum of the safety factor. .
The purpose of the paper is to justify a substantiation of the possibilities of trouble-free operation of de-axial pump based on the Rolamite mechanism with rolling bodies. The use of an electromagnet as a drive makes...
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The purpose of the paper is to justify a substantiation of the possibilities of trouble-free operation of de-axial pump based on the Rolamite mechanism with rolling bodies. The use of an electromagnet as a drive makes...
The purpose of the paper is to justify a substantiation of the possibilities of trouble-free operation of de-axial pump based on the Rolamite mechanism with rolling bodies. The use of an electromagnet as a drive makes it possible to transfer the rotation into a closed space as well as abandon bearings and seals. The flexible tape allows reducing the slip friction and getting separate cameras with the possibilities to pump two substances at a time. The structure of the strain cycle of combined stretching and bending during rotation is investigated in details for the separating tape. The thickness of the tape which provides the specified durability of operation is determined.
Application of inverse logical inference in diagnostic expert systems is considered. Diagnosis decision finding requires fuzzy logical equation system solutions. The genetic algorithm for optimization based on crossov...
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Application of inverse logical inference in diagnostic expert systems is considered. Diagnosis decision finding requires fuzzy logical equation system solutions. The genetic algorithm for optimization based on crossover, mutation and selection of the initial set of chromosomes is proposed for fuzzy logical equation system solving. Computer simulation illustrates the algorithm efficiency. The suggested genetic algorithm can find application in expert systems for technical and medical diagnosis and quality control.
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