3results about How to "Solve molding problems" patented technology

The present application relates to a kind of high-pressure turbine guide vane, and specifically relates to a kind of preparation method of ceramic matrix composite multi-cavity structure high-pressure turbine guide vane.Solve the technical problems that ceramic matrix composite high-pressure turbine guide vane component forming is difficult, blade component size difference and pre-embedded split joint model is easy to be bonded with blade.The method of the present application comprises the following steps:1) preparing upper edge plate component preform, lower edge plate component preform and blade body preform;2) preparing boron nitride interface layer for each preform respectively;3) preparing SiC matrix for each preform respectively, during the densification process of blade body preform, new graphite tooling and graphite paper pad are used at split joint structure for each furnace deposition;4) preparing self-healing matrix for each preform respectively;5) processing each component;Installing inner core baffle and multiple spoiler columns;Online assembly of each component, deposition and processing obtain turbine guide vane.

The application provides a monocular video-based motion capture optimization method and a model training method, and relates to the technical field of computers. The monocular video-based motion capture optimization method comprises the following steps: inputting a monocular video into a touch-down detection model to obtain a touch-down detection result for indicating a touch-down probability of a portrait foot; obtaining three-dimensional motion first data of the portrait according to the monocular video, and then obtaining a foot trajectory of the portrait; performing touch-down optimization on the foot trajectory according to the touch-down probability, and performing jitter optimization on the touch-down optimized foot trajectory; and reconstructing the three-dimensional motion first data through a reverse dynamics algorithm according to the jitter optimized foot trajectory to obtain three-dimensional motion second data of the portrait. The method of the application solves the problem that the accuracy of three-dimensional motion data reconstructed through a reverse dynamics algorithm is reduced due to the possible penetration and jitter of the portrait foot in the three-dimensional reconstruction process.

The application provides an aerogel composite material for 3D printing and a preparation method thereof, and the preparation method comprises the following steps: S1, a base material is vacuum dried to obtain a pre-dried base material, the pre-dried base material is premixed with a foaming agent at a low speed for 5-15 min, and the pre-mixed material is sent into a double-screw extruder to be extruded and granulated to obtain granules one; S2, the granules one are frozen and crushed at a low temperature and sieved to obtain pre-foaming master batches; S3, the pre-foaming master batches, aerogel powder, white oil and a dispersing agent are added into a mixer, stirred at a low speed for 3 min, heated, stirred at a high speed for 15-20 min, and discharged to obtain powder mixtures; S4, the powder mixtures and a foaming agent two are sent into a double-screw extruder to be extruded and granulated to obtain granules two; S5, the granules two are added into an extruder to be melt-extruded to obtain a wire; and S6, the wire is cooled and wound in a constant-temperature environment at 25 DEG C, and vacuum packaged to obtain the aerogel composite material for 3D printing. The aerogel composite material prepared by the application has good heat insulation performance and can meet the personalized manufacturing requirements of complex shapes.