4 results about "Full scale test" patented technology

A reliability design optimization method suitable for separating impact components of a shedding connector belongs to the technical field of engineering optimization. In order to solve the problems that traditional reliability optimization design is highly dependent on physical test, and the test cycle is long and the cost is high, the present application proposes a spatial self-adaptive sampling strategy for Kriging surrogate model, which combines model prediction uncertainty and gradient information, dynamically identifies active constraints, thereby effectively reducing misclassification and redundant sampling; in view of the different response characteristics of the objective function and the constraint function, an anisotropic sampling space is constructed for each function, guiding the sample to focus on the area with higher optimization potential; based on the maximum chord deviation criterion, the sampling points are placed in the nonlinear significant area, so as to improve the accuracy of the local surrogate model and accelerate the convergence speed, thereby realizing reliability design optimization.

The present application relates to a safety valve pilot valve debugging system based on a semi-physical real-time simulation system, a main valve virtual test system, which collects and obtains the pressure boundary conditions of the main valve inlet and back pressure cavity simulated by a physical test system to simulate the parameter state of the main valve virtual test system, a motor controller, which receives the calculated main valve opening and movement speed and drives a linear motor to drive a pneumatic cylinder to follow the simulation main valve opening in real time, and feedback the influence of the main valve opening on the back pressure cavity pressure, so as to realize the state coupling between the pilot valve physical test system and the main valve virtual test system, and achieve the purpose of testing the pilot valve debugging state based on the semi-physical real-time simulation system. The present application uses the main valve virtual test system to replace the traditional physical test system to test the pilot valve debugging state, which can greatly reduce the difficulty and cost of building a large flow gas supply system caused by using the main valve physical test system, and also improve the pilot valve debugging efficiency and batch quality stability and consistency.

The application discloses a kind of hydraulic drive foot type robot joint control experiment table, belong to foot type robot field.The application transforms self-destructive full physical test into predictive research under laboratory conditions, accurately simulates complex and changeable force or torque load spectrum.In the research, the force loading test under fixed position and the force loading test under position change are carried out using the joint control experiment table, it is proved that after the position parameter of joint control cylinder valve is added in feedforward link, the load simulation cylinder can output the expected force curve;Then step position, sinusoidal position and high-low pressure energy-saving experiment are carried out on joint control system based on servo proportional valve and based on cartridge valve respectively, it is proved that compared with single high-pressure oil source control, using high-low pressure oil source can save 25%-38% energy.