8 results about "Performance design" patented technology

The present application belongs to the technical field of flexible robots, and relates to a structure optimization method of a fin ray effect gripper, comprising the following steps: step 1: a co-rotation modeling method is used to construct a force-deformation relationship model of the fin ray effect gripper as a fast evaluation model of the performance of the gripper; step 2: structure optimization design parameters and multi-objective performance evaluation indexes of the fin ray effect gripper are determined; step 3: based on a Bayesian optimization algorithm, the fast evaluation model is combined to construct a multi-objective structure optimization framework, global optimal sample search is performed on the design parameters, and a Pareto front is solved; and step 4: experimental verification is performed on typical optimal parameter combinations in the Pareto front, and optimal structure parameters of the gripper suitable for different gripping scenes are output. The present application can be applied to the design and optimization of flexible, rigid and rigid-flexible hybrid robot compliant mechanisms, and can be widely applied to the high-performance design and parameter tuning of gripper structures in industrial gripping, service robots, precision operation and the like.

This invention discloses a robust design method for gas turbine performance based on multi-source stochastic response coordination, relating to the field of gas turbine performance design. The method sequentially performs three types of stochastic influence analysis: design model, manufacturing, and usage process, constructing probability density functions for core performance parameters respectively. Based on the task phase, it determines the risk levels and weights of various stochastic factors, fusing them to generate a comprehensive probability density function. With the goal of minimizing the dispersion and optimizing the expected value of the comprehensive probability density function, it combines the constraints of component thermodynamic state parameters to solve the optimization model, obtaining the optimal combination of performance parameters. This invention achieves multi-source stochastic coordinated quantification and characterization, improving the robustness of gas turbine performance, solving the problems of conservative design and poor adaptability to operating conditions in traditional methods, and enhancing its operational safety and reliability.

This invention discloses a method and system for optimizing the slag discharge design of a vertical shaft cutting head slag bin, belonging to the technical field of underground coal mine transportation equipment. The method is based on a Python script framework and includes an automatic modeling module, an automatic simulation module, and a data analysis and parameter optimization module. The automatic modeling module performs model verification and efficient automatic modeling of the slag bin structure; the automatic simulation module automatically performs mesh generation and boundary configuration on the modeling results and calls simulation software to run multiphysics simulations; the data analysis and parameter optimization module captures the slag discharge indicators of interest from the simulation results and calculates the slag discharge performance of the model, introducing a Bayesian optimization model for iterative optimization, achieving convergence of the structural parameters of the slag bin structure to the optimal structural parameters with the fewest simulations. This invention features high integration and strong automation, constructs a closed-loop optimization mechanism, breaks through the bottlenecks of existing design processes, and improves the efficiency and quality of structural performance design.

The present application belongs to the technical field of badminton racket, and particularly relates to a badminton racket rod structure and a production process thereof. The present application adopts a combination scheme of a radial three-layer differentiated composite structure and an axial gradient performance design. From inside to outside in the radial direction, a reinforcing framework layer, a middle functional layer and an outer reinforcing layer are arranged, and each layer respectively undertakes the core functions of torsion resistance and shock absorption, rigid and tough balance and rigid enhancement. Different weaves and ply angle designs are matched to realize performance partition customization of different regions of the racket rod, so that the contradiction that rigidity and shock resistance cannot be considered together is solved.

This invention relates to the field of mechanical structure design technology, and in particular to a design method for a ring-shaped braking mechanism. The method includes: using the physical structure of the ring-shaped braking mechanism as a design reference, setting an initial radial clearance matching the design operating conditions, and collecting measured data of the design benchmark throughout the entire process of assembly locking, clearance elimination, and braking operation; establishing an auxiliary design verification method adapted to brake performance design verification and adapting and debugging the auxiliary design verification method; loading in stages according to the actual working sequence, collecting relevant data of the auxiliary design verification, and performing closed-loop iterative verification with the measured data of the design benchmark to finally obtain the finalized design scheme of the ring-shaped braking mechanism. This invention effectively solves the technical problems of long cycle and high cost in traditional design modes, and insufficient accuracy and large deviation in design results of conventional auxiliary design methods, achieving high-precision and efficient design, and providing reliable support for the research, development, design, and engineering verification of ring-shaped braking mechanisms.

This invention relates to a multi-performance coordinated design method for planetary roller screws, belonging to the field of planetary roller screw technology. It includes the following steps: Step 1, establishing a calculation model for the thread engagement point slip ratio and maximum von Mises stress based on the kinematics and load distribution model of the planetary roller screw; Step 2, establishing equal and unequal structural constraints based on the correct meshing, non-interference, and contact boundary conditions of the planetary roller screw; Step 3, establishing a multi-performance optimization design model for the planetary roller screw based on the optimization objective and constraints; Step 4, using a multi-objective genetic algorithm to solve the multi-performance design model of the planetary roller screw, obtaining the Pareto front and corresponding structural design parameters; Step 5, obtaining the Pareto front range that satisfies the given limit trade-off cost. Based on the Euclidean norm and minimizing the dimensionless distance, the optimal trade-off solution and corresponding structural design parameters are obtained.

This invention relates to the field of ship design technology and discloses a rudder system optimization design method based on nonprobabilistic reliability theory, comprising the following steps: S1: Determine the mechanical performance design values ​​of key components of the rudder system based on nonprobabilistic reliability indices, conduct parameter sensitivity analysis to determine the sensitive variables affecting the rudder stock torque, construct a parameterized model library, and generate a sample space through automated simulation scripts; S2: Call the parameterized model library to generate a three-dimensional model, perform finite element calculations of the rudder-propeller combination, simulate the hydrodynamic performance of the rudder system under different rudder angle conditions, and compare and analyze the results with reference data and standard calculations. By integrating nonprobabilistic reliability theory and comparing nonprobabilistic reliability indices and convex set models, parameter uncertainties are effectively handled, the reliability of the rudder system design is improved, and the optimization ideas of portal frame structures are used to reduce design constraints and improve efficiency.

The application discloses a kind of based on stirling cryogenic machine motor rotor mechanical performance design method, it is related to stirling cryogenic machine technical field, design method includes: S1, first obtain the operating frequency of stirling cryogenic machine;S2, establish rotor system axial dynamics model;S3, define as single degree of freedom mass stiffness system in axial movement of rotor system, and calculate current single degree of freedom mass stiffness system inherent frequency;S4, carry out counterweight mass design and / or waveform spring axial stiffness adjustment;S5, verify whether new single degree of freedom mass stiffness system inherent frequency avoids excitation band;S6, then determine final counterweight mass and waveform spring stiffness design value.The influence of counterweight on rotor axial movement and the resonance problem of rotor system axial movement and cryogenic machine operating frequency are comprehensively considered, and the abnormal vibration and noise caused by these factors can be effectively avoided by the design method, and the operating stability of the cryogenic machine is significantly improved.