4 results about "Engineering design process" patented technology

The present disclosure relates to an engineering design process data quality evaluation method and device, and relates to the technical field of computers. The method comprises: obtaining target engineering design process data; structurally processing the target engineering design process data to determine a plurality of fields; determining a plurality of evaluation parameters according to the fields; determining evaluation information of the target engineering design process data according to the evaluation parameters; and outputting the evaluation information. The present disclosure can deeply mine and model the proofreading opinion data in the background, evaluate the quality of each process, and achieve more objective evaluation.

The invention discloses a topological optimization rapid design method for an air-cooled turbine blade, and belongs to the technical field of aero-engine and gas turbine design. According to the method, a topological optimization mathematical model considering the coupling effect of an aerodynamic load, a temperature load and a centrifugal load is established, and automatic optimization of blade inner cavity material distribution is realized through sensitivity analysis and pseudo-density updating by taking blade skin flexibility minimization as a target. On the basis, a turbine blade engineering design process based on topological optimization is provided, and a similar double-layer-wall multi-layer composite low-inertia blade structure configuration is formed. According to the method, the problems of multidisciplinary serial connection, experience dependence, stress concentration and low cooling efficiency in traditional blade design are solved, and collaborative improvement of the blade structure efficiency and the cooling performance is achieved.

The invention discloses a synchronous management method for a WBS and PBS semi-decoupling water conservancy and hydropower project based on a PPO2 algorithm. The method comprises the following steps: establishing a five-layer state space model; defining a composite action space; the hierarchical Actor-Critic decision network based on the PPO2 is constructed; designing a multi-target reward function; pPO2 training optimization is implemented; the dynamic semi-decoupling of the WBS-PBS is realized; and executing online decision making and learning. According to the method, the training stability and high efficiency of the PPO2 algorithm are utilized, intelligent management of the hydraulic engineering design process is achieved, the change propagation influence is reduced through a semi-decoupling mechanism, the adaptability of a project to uncertainty is remarkably improved, resource utilization is optimized, and the design quality and efficiency are improved.

The invention discloses a bending, twisting and buckling bearing method for duplex stainless steel cold-bent edge-rolled angle steel, and relates to the technical field of metal structure materials. The method comprises the four steps of material mechanical property parameter acquisition, bending-torsion coupling calculation model establishment, bending-torsion combination test verification and engineering design method output. Accurate parameters are acquired by testing material microstructures and mechanical properties under different cold bending processes; deriving a bending-torsion coupling equation based on an energy method, and establishing a calculation model in combination with a finite element method; designing a standardized bending torsion loading test device, and verifying and correcting the model; load conditions are classified, a design formula is simplified, and an engineering design process is formulated. According to the method, the problems of large calculation error and poor practicability in the prior art are solved, the calculation error of the bending-torsion-buckling critical load is reduced to 5% or below, the blank of design specifications is filled up, the method can be applied to the fields of buildings, oceans, chemical engineering and the like, material waste is reduced by 10%-15%, and remarkable technical, economic and social benefits are achieved.