3results about How to "Achieve structural optimization" patented technology

The invention discloses a design method of a multi-stage thermoelectric cooler adaptive to a multi-component bismuth telluride temperature zone. The design method comprises the following steps: preparing bismuth telluride materials with various components and different thermoelectric properties; testing the change relation of the thermoelectric parameters of the multiple groups of bismuth telluride materials in a near room temperature range along with the temperature; based on a test result, screening the bismuth telluride material with the highest thermoelectric figure of merit in different temperature zones, drawing a curve of thermoelectric parameters of the bismuth telluride material changing along with the temperature, and fitting to obtain a high-order term expression taking the temperature as a variable; setting an initial value of the logarithm and an initial value of the grain size of each layer of element of the multistage thermoelectric refrigerating unit, and substituting the obtained fitting expression into a heat balance equation set of the multistage thermoelectric refrigerating unit according to a temperature zone for analysis; and solving a heat balance equation set by iterating the logarithm and the grain size of each layer of element to obtain an optimal design parameter and finish the design. By means of the method, structural optimization of the multistage thermoelectric cooler can be achieved, material temperature zone adaptation and structural parameter collaborative optimization are achieved, and the refrigeration temperature difference and the refrigeration power are remarkably improved.

The utility model relates to the technical field of automobile wire harness, specifically relates to a new energy vehicle waterproof wire harness connector, including connector male, connector female seat and waterproof mechanism, waterproof mechanism includes abutting platform, plug -in ring, first sealing washer, threaded bush, protective sleeve and alignment device, and the connector male is installed on the connector female seat through alignment device cooperation when connecting, and the abutting platform carries out spacing abutment when plugging, and the first sealing washer of installation of the sleeve on the plug -in ring can slide into the sealing of the cooperation cavity on the connector female seat, further sliding the protective sleeve of wire harness outside of the connector male is prearranged and is connected with threaded bush screw thread, realizes the connection of connector male and connector female seat Anti -loose processing, the waterproof treatment of the connector male and the connector female seat plug -in after through the first sealing washer in the structure of the application, and the structure is more stable compared with the waterproof of the existing bonding structure, and the anti -drop -out effect is also better, and then can realize the structure optimization, is favorable to the promotion connector overall waterproof performance.

This invention discloses an automatic vehicle modal extraction method and related equipment. The method includes: obtaining basic order information of the first-order torsional mode and the first-order bending mode corresponding to the basic model, and basic model displacement information of the target point, respectively, through modal simulation analysis; obtaining modal calculation information corresponding to multiple parametric models through simulation analysis; calculating the similarity information between the displacement information of the parametric models corresponding to different parametric models and the displacement information of the basic model; and obtaining the torsional frequency information and torsional order information of the parametric models corresponding to the first-order torsional mode, and the bending frequency information and bending order information of the parametric models corresponding to the first-order bending mode, based on the similarity information. The method provided in this application can significantly reduce the post-processing time of simulation results, achieve automatic identification of modal information of parametric models, and improve simulation efficiency in the design phase.