34results about How to "Accurate design results" patented technology

The invention discloses an optimal design method of an LLC resonant converter, which includes: determining the transformation ratio of the transformer according to the design index of the LLC resonant converter; core shape, preliminarily design a transformer; measure the parasitic capacitance of the transformer; deduce the relationship between conduction loss and dead time, and obtain the optimal dead time when the conduction loss is the smallest; determine the optimal dead time according to the optimal dead time Optimal magnetizing inductance; select the inductance ratio and quality factor that can satisfy the gain condition; get the resonant inductance value and resonant capacitance value from the optimal magnetizing inductance, inductance ratio and resonant frequency; change the air gap of the transformer to make the magnetizing inductance equal to the optimal magnetizing inductance . This method solves the problem that the traditional LLC resonant converter design method relies too much on experience and is not accurate enough, makes the design result more accurate, and can be extended to various applications.

A CAD and WebGl-based method for deepening the design of prefabricated structural prefabricated columns and composite beams, belonging to the field of intelligent building technology, the method includes the following steps: Step 1: Establishing a parametric digital model of longitudinal bars, stirrups, and tie bars; 2: Create a column reinforcement table; Step 3: Identify the beam-column flat method construction drawing, extract the beam location and flat method information, column location information and column reinforcement table information; Step 4: Arrange the dynamic block of the beam end reinforcement; Step 5: Draw Column longitudinal reinforcement; Step 6: Carry out avoidance design of beam-column joint reinforcement in the plan construction drawing; Step 7: Extract beam-column joint reinforcement avoidance design information, generate beam-column component database and QR code; Step 8: Batch generate CAD-based Detailed design drawings of precast columns and composite beams; Step 9: Batch generation of Web-based detailed design models of prefabricated columns and composite beams. The invention can effectively improve the quality and efficiency of the deep design of prefabricated columns and composite beams of assembled structures.

The invention discloses a boundary element analysis method based on parameters of a commercial vehicle, which is characterized in that it comprises the following steps: 1) applying a regularly changing load; 2) obtaining a damping characteristic curve; 3) segmental weighting of the damping characteristic; 4 ) to establish a segmented weighted parameter set; 5) parameter boundary element extraction; 6) global boundary element design of the vehicle. This method can reasonably and accurately design the nonlinear damping, improve the accuracy of nonlinear scaling and matching, save the development cycle and cost, reduce the tuning cycle and facilitate the formation of a standard parameter scaling database for the model, which is convenient for the reduction of the same model. Vibration design provides a reference.

The invention relates to a method for designing a color template of metallic glitter paint, comprising the steps of: obtaining a color design drawing of metallic glitter paint; collecting Lab values ​​of basic colors; making a color template of plain paint; collecting the Lab value of the color template of plain paint, Calculate the color difference value of the Lab value of the color sample of plain paint; compare the color difference value of the Lab value of the color sample of plain paint with the color difference value interval, if it does not fall in the color difference value interval, return to production The color sample of plain paint; otherwise, make the color sample of metallic flash paint; collect the color of the color sample of metallic flash paint from multiple angles; solidify the Lab value of the color sample of metallic flash paint collected each time, and then install all Import the Lab value set of the metallic glitter paint color template; output the color paste ratio, effect pigment ratio, and metallic glitter paint color template Lab value set. The invention greatly reduces the dependence on human eye recognition, greatly improves the accuracy of recognition and comparison, and makes the final design result more accurate and the error smaller.

The invention discloses an optimizing calculation method for design of a gravity anchor on calcareous rock soil. The method includes the steps that the component forces of the anchor chain load borne by the gravity anchor in the horizontal direction and the vertical direction are determined, and the saturated unit weight of undisturbed soil and an internal friction angle are determined; whether the undisturbed soil belongs to calcareous sand, calcareous gravel or calcareous rock is judged; the gravity of the gravity anchor is calculated, by means of an ABAQUS finite element tool, finite element models in which the gravity anchor and the undisturbed soil interact with each other are built for different basal areas, a horizontal bearing force-basal area relationship curve is drawn, the basal area corresponding to the largest horizontal bearing force is the optimal basal area of the gravity anchor, and then the width and the height of the bottom face of the gravity anchor are determined; and the number and the thickness of shearing force keys and the weight of the single shearing force key are determined, and therefore the structural type of the gravity anchor is determined. According to the optimizing calculation method for design of the gravity anchor on the calcareous rock soil, different friction coefficients can be selected according to different soil texture conditions of the calcareous rock soil, and influences of the friction force between the gravity anchor and the undisturbed soil and the depth of the sliding face on the horizontal bearing force of the gravity anchor are considered comprehensively.