5 results about "Element analysis" patented technology

The invention discloses an optimized design method of Gantry-type machine tool stiffness based on segmentation configuration. 3D model of Gantry-type machine is established. Parameter-driven of segmentation configuration modifies and adjust 3D parameter, then a series of 3D model as a structural template can be obtained. A sample library of Gantry-type machine tool can be formed by performance data from finite element analysis. According to the stiffness requirements of the machine tool processing, the initial plan of Gantry-type machine tool structure inputted by the design personnel is optimized based on the basic configuration and segmentation configuration. According the method, the stiffness of Gantry-type construction in early designing stage has been predicted, which provides a reference for designing high stiffness gantry-type structure and reduce the experiment cost of modification and trial production in the process of designing Gantry-type machine tool.

The invention discloses an actual load measuring method of the ultra-high-rise steel and concrete combination structure. The actual load measuring method includes the following steps that a reasonable measurement manner is adopted for carrying out load bearing entity measurement on the full process of concrete frame core cylinder structure construction; by combining with an actual measurement result, a finite element analysis SAP 2000 is used for setting up a reasonable concrete frame core cylinder structure construction stage vertically stressed and deformation analysis model which is used for numerical analysis and calculation; entity measurement and analog computation are analyzed. According to the actual load measuring method of the ultra-high-rise steel and concrete combination structure, the method combining on-spot entity measurement and numerical analysis computing is adopted, the reasonable measurement manner is used for carrying out load bearing entity measurement on the full process of the concrete frame core cylinder structure construction, the finite element analysis SAP 2000 is used for setting up a reasonable concrete frame core cylinder structure construction stage vertical stressed and deformation analysis model which is used for numerical analysis and calculation; the actual measurement results are combined for carrying out comparison and analysis. In addition, the actual load measuring method is convenient to carry out, the measurement results are accurate and good application value is achieved.

The invention discloses a design method of a near-junction cooling structure of an ultrahigh heat flow radio frequency microsystem. Firstly, carrying out discretization of a design area; setting boundary conditions according to actual working conditions; introducing reverse permeability and thermal conductivity related to the pseudo-density value to initialize a finite element model of a design area; carrying out finite element analysis according to a Stokes flow model and a convective diffusion equation; obtaining information of a flow field and a temperature field in an iterative computationmode; calculating a target function by utilizing the obtained physical field information; iterating under MMA algorithm updating according to the constraint function, the target function and the sensitivity of the constraint function to the design variable until the maximum fluid volume ratio allowed in the design process and the maximum outlet and inlet pressure difference allowed in the designprocess are met at the same time, or the number of iterations reaches the set maximum number of iterations. According to the method, the design reliability is improved, the design efficiency is higher, the design result is better, and meanwhile the design cost is reduced.