The invention concerns a method for the structural optimization of a brake caliper (10), the brake caliper (10) having a first face (24) and a second face (26) that are spaced apart from one another along a piston movement axis (A), wherein the first and second face (24, 26) are connected by a bridge section (22) of the caliper (10), wherein the method is performed based on a computer-implemented model (30) of the brake caliper (10), caliper model, the method comprising: prescribing a boundary condition according to which an orientation of the first face (24) and the second face (26) relative to one another and/or to the piston movement axis (A) remains constant even under load; performing a structural optimization of the caliper model (30) taking into account said boundary condition.

Also disclosed is a brake caliper (10).

Systems and methods for semi-discrete modeling of progressive damage and failure in composite laminate materials are disclosed. An example method includes receiving, from a user, a fibrous strip width and a fibrous strip spacing, and creating a finite-element (FE) mesh by: generating, using a structured hex meshing algorithm, a plurality of fibrous strips along a fiber direction based on the fibrous strip width and the fibrous strip spacing, and generating, using a free hex-dominated advancing front meshing algorithm, a bulk element between each of the plurality of fibrous strips. The FE mesh may define a portion of a composite laminate material. The example method includes determining a predicted mechanical response of the composite laminate material by: generating a constitutive model corresponding to the composite laminate material based on the FE mesh, and inputting a stress value or a strain value to the constitutive model to generate the predicted mechanical response.

Methods, systems, and apparatus, including medium-encoded computer program products, for computer aided design with feature thickness control, include: a three-dimensional modeling program configured to provide voxelized thinning based distance to medial surface processing that measures thicknesses in a three-dimensional model, and/or ramped scaling based thickness constraint application during shape and/or topology generation. The three-dimensional modeling program can be an architecture, engineering and/or construction program (e.g., building information management program), a product design and/or manufacturing program (e.g., a CAM program), and/or a media and/or entertainment production program (e.g., an animation production program).

An optimization analysis method for joining locations of an automotive body obtains optimal locations of additional joining points or joining portions for use in joining parts assemblies together in an automotive body model and includes: a step of obtaining a deformation form in a vibration mode occurring in the automotive body model 31 by frequency response analysis; a step of determining a load condition to be given to the automotive body model in correspondence with the deformation form in the obtained vibration mode; a step of generating an optimization analysis model in which additional joining candidates are set at locations to be candidates for joining parts assemblies together; a step of setting an optimization analysis condition; and a step of giving the determined load condition to the optimization analysis model to perform optimization analysis and obtaining the additional joining candidates satisfying the optimization analysis condition as optimized joining points.

The invention discloses a numerical simulation method for the overflowing of river channel structures based on finite volume method. The method firstly acquires plane geometric data, river section data and structure geometric sizes of the river channel. The river channel is discretized by using the one-dimensional finite volume element, and the primitive variable values are stored in the center of the element, wherein the position of the river channel structures is taken as the element special interface. The amount of water passing through the structure interface in each time step is calculated according to the structure overflowing formula. This amount of water is respectively deducted from and increased to the upstream element and the downstream element adjacent to the interface by applying the source item method. The primitive variable values at the special interface are reconstructed by adopting the non-reflection boundary conditions in order to ensure the continuity of calculation. The numerical flux at the structure interface is further calculated. According to the invention, the overflowing characteristics of each structure can be accurately reflected. Meanwhile, the calculation precision and stability of the one-dimensional river channel flow model are overall guaranteed, which provides a new solution for dealing with the overflowing of structures under the numerical framework of the one-dimensional finite volume method.

In some examples, a method of operating a circuit is described. The method may include performing a circuit function and estimating a probability of failure of the circuit based on one or more stress origination metrics, one or more stress victim events, and one or more initial state conditions.

An object of the present invention is to provide an equipment state detecting device, an equipment state detecting method, and a program that can create a 3D model of a cable based on three-dimensional coordinates acquired using a laser scanner or the like, and precisely estimate the tension for the entirety of the cable even if the entirety of the cable is not three-dimensionally modeled in the cable model. An equipment state detecting device of the present invention creates a 3D model of a cable based on three-dimensional coordinates acquired using a laser scanner or the like, acquires a sag and a straight line connecting ends of the 3D model based on the 3D model, and calculates the tension of the cable using a known cable load per unit length.

Creation and use of a digital twin instance (DTI) for a physical instance of the part. The DTI may be created by a model inversion process such that model parameters are iterated until a convergence criterion related to a physical resonance inspection result and a digital resonance inspection result is satisfied. The DTI may then be used in relation to part evaluation including through simulated use of the part. The physical instance of the part may be evaluated by way of the DTI or the DTI may be used to generate maintenance schedules specific to the physical instance of the part.

The traditional limit equilibrium slice method does not consider the distribution of the interslice normal force when analyzing the slope stability. That is, the present invention takes into consideration the distribution of the acting positions of the thrust line, and thus provides a slope stability limit equilibrium calculation method based on the distribution characteristics of the interslice normal force. For the deep concave slip surface, it is found that the improved limit equilibrium method and the traditional limit equilibrium method have a large error in the safety factor, which is as high as about 20%. The method of the present invention has the characteristics of simplicity and reliability, and will provide more accurate results for slope stability analysis.

The present invention proposes a method for solving a complete flutter termination parameter based on double mass bodies of non-fixed constraint, including the following steps: obtain model input parameters at a flutter termination moment t0, wherein the model input parameters includes the mass ratio of the double mass bodies as well as position coordinates, a speed, an acceleration speed and a restoration coefficient of each mass body, the mass ratio and the restoration coefficient are both constants; establish a first solution model to obtain a parameter at a flutter termination moment t.sup.∞; establish a second solution model to obtain position parameters of the double mass bodies at the flutter termination moment t.sup.∞; establish a third solution model to obtain speed parameters of the double mass bodies at the flutter termination moment t.sup.∞ according to the third solution model and the model input parameters. The present invention continues to complete numerical simulation directly from a certain flutter moment, can skip over a flutter process, and directly obtain the flutter termination moment and the positions and speeds of the double collision mass bodies at the flutter termination moment, thereby improving calculation accuracy and saving a lot of calculation time.