4results about How to "Ease of performance evaluation" patented technology

The application discloses a chloride-based multi-parameter humidity and conductivity comprehensive calculation method, comprising the following steps: S1, collecting basic parameter information of chloride materials, and performing relevant data arrangement, and comparing after entering a system; S2, then setting an environmental humidity change range, and obtaining moisture absorption and surface water layer thickness under different relative humidity conditions; S3, establishing a relevant coupling model, and considering ion mobility, charge transmission channel number and interface polarization effect of the chloride materials under different humidity; S4, introducing a multi-parameter regulation factor, correcting environmental temperature, pressure and material surface state, and obtaining correct data; the method has high application prospect and popularization value.

This utility model relates to the field of hinge spring performance testing technology, and more particularly to a hinge spring comprehensive performance testing device. This utility model provides a hinge spring comprehensive performance testing device capable of simultaneously testing the fatigue performance and rebound performance of a hinge spring, facilitating a comprehensive performance evaluation of the hinge spring. A hinge spring comprehensive performance testing device includes a base and a sliding frame, etc., with the sliding frame slidably connected to the left side of the base. This utility model tests the hinge spring's fatigue performance by moving a lever up and down along a slide rail, causing the hinge on the other side to rotate. When the hinge rotates back to its original position, it contacts the lever. A pressure sensor monitors the pressure change between the hinge and the lever after the hinge rotates back to its original position, thus determining the hinge spring's rebound performance. This achieves the effect of simultaneously testing the fatigue performance and rebound performance of a hinge spring, facilitating a comprehensive performance evaluation of the hinge spring.

The invention relates to a micro-disturbance grouting system with a feedback function, which comprises a parameter configuration module, a grouting execution module, a monitoring module and a feedback control module, constructing a micro-perturbation geological adaptation model, and configuring initial grouting parameters and perturbation allowable threshold intervals; executing parameter stepped dynamic adjustment by adopting a hierarchical adjustment strategy, correcting the conveying rhythm by relying on a grouting uniformity compensation mechanism, and switching a grouting process; grouting parameter data are obtained through multi-channel synchronous obtaining logic, grouting parameter time sequence data are generated through processing of a dynamic noise suppression algorithm and a parameter calibration model, calibration is conducted according to a timestamp, and a grouting parameter curve is generated in a layered visualization mode; a hybrid control strategy is adopted, a disturbance-grouting parameter nonlinear mapping model is established in combination with historical data and a disturbance allowable threshold interval, and an adjusting instruction is generated through a deviation grading processing mechanism; the system improves the micro-disturbance control precision and the grouting quality, and is suitable for construction of complex stratums in near-sensitive areas.

The utility model discloses a kind of tension test equipment for metal pipe test, belong to material mechanics test technical field, including platform, the upper surface both sides of platform are symmetrically equipped with guide column, the inside of guide column is equipped with power equipment, and the output end of power equipment is fixedly installed with lifting beam, the upper surface of platform and the lower surface of lifting beam are symmetrically equipped with clamping body, the front surface of clamping body is equipped with trapezoidal groove, and trapezoidal groove is equipped with wedge plate and moves symmetrically in horizontal direction inside, the front end of wedge plate is located clamping body outside, clamping installation groove is equipped in the front end of the inner surface of wedge plate, the utility model is by being arranged on the extension wedge plate of clamping body outside with clamping structure, so that clamping point is located in front of equipment main body, so that the limitation to the overall length of metal pipe is broken through, without cutting, directly longer pipe material can be clamped and tensile test, significantly improve test efficiency, and it is convenient to evaluate the performance of pipe material different position.