2results about How to "No complexity" patented technology

The application relates to the technical field of tunnel construction, and discloses a tunnel construction drainage device, which solves the problem that the cleaning mechanism of the existing drainage device has a complex structure, the complex matching structure is prone to faults in operation, and the cleaning of the silt is ineffective; the water flow drives the rotary drum to rotate, thereby providing power for the rotation of the filter cover; the driving mode has a circulating operation path, has no redundant components or complex interaction, has a low failure rate, is convenient for long-term stable operation in a complex underwater environment, the rotating filter cover and the non-porous part of the surface cooperate with the inclined shelf to work, the silt adsorbed on the surface of the filter cover is continuously cleaned, the filter cover keeps the water filtering efficiency, the suction assembly enables the suction cover to generate suction force to suck the cleaned silt, the silt is prevented from being active near the filter cover, and the workload of the inclined shelf for cleaning the silt is increased; the movement path of the above structure is circular, the operation process is orderly, the regularity is high, and the drainage operation is suitable for stable operation in a complex underwater environment.

The application discloses a gear NVH anchor point calibration and duty cycle switching cooperative optimization system and method, comprising: under selected torque, parameter value exhaustive combination is carried out on selected micro parameters of a gear transmission system, a plurality of micro parameter groups composed of micro parameters with different values are obtained, and a corresponding full-condition weighted peak-to-peak transmission error comprehensive evaluation value is obtained according to a peak-to-peak transmission error simulation curve and a peak-to-peak transmission error reference curve of the gear transmission system under each micro parameter combination, and the micro parameter group with the minimum full-condition weighted peak-to-peak transmission error comprehensive evaluation value is selected as the optimal anchor point reference parameter group for the gear transmission system to run; when the demand torque of the gear transmission system is in a preset optimization torque interval when the gear transmission system runs with the optimal anchor point reference parameter group, a two-point high-frequency duty cycle switching mode is executed.