4 results about "Fully coupled" patented technology

The application relates to a full-coupling MEMS tuning fork gyroscope, comprising: an anchor point structure, a suspension structure being suspended on the anchor point structure; wherein the suspension structure comprises two symmetrically arranged suspension units, each suspension unit comprising a driving mass, a Coriolis mass and a sensitive mass, the two sensitive masses being connected through a sensitive coupling structure between opposite surfaces of the two sensitive masses, and the free ends of the two driving masses being connected through a driving coupling structure. The MEMS tuning fork gyroscope designed by the application adopts a full-coupling structure, so that the response amplitudes of the driving mode and the sensitive mode of the gyroscope are closer, the frequency difference between the two modes is effectively reduced, and the sensitivity of the gyroscope is effectively enhanced.

This application provides a fully coupled electromagnetic-thermal-mechanical simulation design method and system for SiC controllers, belonging to the field of power electronic device simulation design technology. The method involves: constructing a two-way real-time coupled model of electromagnetic, thermal, and mechanical stress fields; determining the irradiation dose based on the expected operating environment of the SiC controller, introducing an irradiation damage factor to correct the SiC material parameters, and inputting this into the two-way real-time coupled model; performing multi-condition simulations by inputting different temperature and stress conditions into the two-way real-time coupled model, outputting the performance parameters of the SiC material, and establishing a quantitative relationship model between the performance parameters and temperature and stress to reveal the performance degradation law of the SiC material; and, based on the two-way real-time coupled model and the performance degradation law of the SiC material, synergistically optimizing the parameters of the SiC controller with switching losses and temperature rise as optimization targets. This application improves simulation accuracy, optimizes SiC controller performance, and enhances reliability and service life.

The invention provides a model-based design method for a digital prototype of an electric power system of an unmanned underwater vehicle, which comprises the following steps of: analyzing design requirements of the system, and designing and constructing a prototype design requirement model; carrying out functional model research on the basis of the design requirement model, and designing and constructing a prototype functional model; based on the prototype function model, carrying out structure design and simulation optimization work of a physical implementation layer, and designing and constructing a prototype performance model; fully coupling the system-level indexes with each group of component sub-models contained in the prototype performance model, and constructing a three-dimensional fused digital prototype model; performing product geometric design on each group of components in the digital prototype model, and constructing a prototype product geometric model; producing and manufacturing each group of components in the geometric model of the prototype product to obtain a physical prototype, and performing integrated joint debugging on the physical prototype; fusing the digital prototype model and the physical prototype; according to the method, the overall collaborative design efficiency of the system is improved, and the design period is shortened.

The invention relates to the technical field of offshore oil pipeline laying simulation experiments, in particular to a full coupling effect testing device for S-shaped laying of pipelines, and aims to solve the problems that an existing experimental device is poor in real-time performance and cannot effectively simulate full coupling response of a pipe laying ship-stinger-pipeline-soil body system in S-shaped laying of the pipelines. The device comprises a control mechanism, an adjusting mechanism and a monitoring assembly. The control mechanism is fixedly connected with one end of the pipeline and can control the displacement direction of the pipeline, and the other end of the pipeline is hinged to the upper portion of the soil box model. The soil box model is arranged at the bottom of the test pool; the adjusting mechanism abuts against the side wall of the pipeline and can adjust the angle between the pipeline and the horizontal plane. The monitoring assembly can collect parameters of the pipeline in real time. The ocean ground is simulated through the soil box model, the control mechanism simulates the pipe laying ship, the adjusting mechanism changes the S line shape of the pipeline and the angle between the pipeline and the horizontal plane by adjusting the heights of different parts of the pipeline, and then various parameters of the pipeline can be collected in real time through the monitoring assembly.