10results about How to "Strong engineering practice" patented technology

The invention provides a performance testing method and application of recycled fibers of wind power blades. The performance testing method comprises the steps of preparation of an adhesive material, bending resistance testing, determination of the optimal doping proportion of the recycled fibers, durability testing and the like. According to the method, the wind power blade recycled fibers are prepared into the adhesive material, and then the fracture resistance, the aging resistance and the like of the adhesive material are tested, so that the method can be used for testing the performance of different wind power blade recycled fibers and different thermosetting composite material recycled fibers.

The invention discloses a mode-mixed marine target aircraft program-controlled flight method, which is composed of a route fixed mode and a route follow-up mode, that is, a target aircraft only processes received ship information in a route task section, and carries out real-time calculation, adjustment and refreshing on navigation waypoints to keep the relative orientation and distance of the target aircraft relative to a ship unchanged; the flight route waypoints outside the task segment are not refreshed and calculated, and the flight is still carried out according to the fixed flight route. According to the method, route planning operation is easy and convenient, the target aircraft can automatically judge the position of the target aircraft in the flight process to achieve main ship switching, information receiving, route resolving, adjusting and refreshing, especially when multiple aircrafts fly along with the ship in the same air, the workload and operation pressure of ground operators are greatly relieved, and high engineering practicability is achieved.

The invention provides a competitive preferential evaluation method for an inertial device of weapon equipment, which comprises the following steps of: orthogonalizing the characteristics of the inertial device to form a special performance index set and a general performance index set, further dividing the special performance index set and the general performance index set into attribute index subsets, and forming an inertial device characteristic index set by the attribute index subsets; determining inertial device characteristic index weights for various characteristic indexes in the inertial device characteristic index set, and sorting the characteristic indexes according to the weights; determining an index system for evaluation according to the sorting result; performing normalization processing on each characteristic index weight in the index system to obtain a comprehensive evaluation weight; and according to the index system, corresponding indexes of all the current to-be-evaluated inertial devices are collected and processed, a processing result and the comprehensive evaluation weight are subjected to weighted synthesis, a comprehensive evaluation result is obtained, and thus the optimal inertial device meeting the current application requirement is obtained.

The large-span double-frame prestressed CFRP suspension cable truss structure is a new type of CFRP suspension cable truss roof bearing structure system. The roof bearing structure system includes a main truss, a vertical support system and connecting rods. The main truss consists of two CFRP suspension cable trusses and a balance bar, and the vertical support system consists of a support column and a pipe truss. The CFRP suspension cable truss includes an upper CFRP suspension cable, a lower CFRP suspension cable, a vertical CFRP suspension cable and a suspension cable clamp; the CFRP suspension cable truss obtains bearing capacity by tensioning the upper CFRP suspension cable, and the two CFRP suspension cable trusses in each main truss are connected by a balance bar to form a force-bearing whole of the main truss, which can realize the large-span layout of the roof; the double-layer CFRP suspension cable can withstand horizontal, vertical loads and wind suction, and the main load-bearing component CFRP suspension cable has the advantages of light weight, high strength and corrosion resistance, which can realize the large span capacity and stable operation of the roof structure.

The invention discloses an air target aircraft cluster GNSS time cooperation formation and formation transformation method and system, and the method comprises the steps: planning the flight route of each target aircraft in a multi-aircraft cooperation formation according to the flight task demands, dividing the flight route into a plurality of flight segments, and setting the flight speed of each flight segment; according to the set flight speed of each flight segment, the absolute time of each target aircraft reaching the entry point of the next flight segment is calculated; according to the absolute time of reaching the task point, the current flight speed and the current GNSS time, the set quantity of the flight speed is adjusted in real time, and the target aircraft is controlled to fly at the set speed; when the task demand or the flight environment changes, the formation is changed in real time by uploading the absolute deviation time or the flight segment distance required by the new formation. The system comprises a leg division module, an absolute time calculation module, a formation flight module and a formation transformation module. The method is accurate in control, high in route completion accuracy, high in controllability, high in flexibility, high in engineering practicability, small in dependence on links and easy to use.

The present invention discloses a four-corner leveling system of a hydraulic press based on independent load ports and a control method thereof. The four-corner leveling system mainly includes: a leveling cylinder, a displacement sensor, a relief valve, a pressure sensor, a high-frequency proportional valve, a hydraulic source, an oil tank and a controller. The control method of the present invention first collects displacement signals and pressure signals during the leveling process through each displacement sensor and a pressure sensor; adjusts the target speed of the flow controller according to the difference between the actual displacement of each leveling cylinder and the target displacement, and then processes the difference between the actual speed of each leveling cylinder and the target speed through the flow controller to output the control value of the flow valve, and compares and adjusts it with the control value of the diagonal leveling cylinder, and finally returns the final adjustment value to each flow controller. The control method provided by the present invention can quickly and accurately adjust the actual displacement of each hydraulic cylinder to keep synchronization with the target position when bearing an eccentric load, maintain the stable operation of the system, improve the processing accuracy of the hydraulic press, and has strong engineering practicability.

The present application relates to a kind of new energy partition layout optimization method considering space-time characteristics, comprising: establishing each partition space-time characteristic representation model, with the average value of typical month each time period photovoltaic output as whole point equivalent output;Establish new energy partition layout optimization model considering space-time characteristics, its constraint conditions include new energy scale constraint, curtailment rate constraint, power balance constraint, interzoning interconnection line power constraint and unit output constraint;Its objective function is the equivalent annual investment yield of new wind power and photovoltaic power generation installed capacity maximum;Newly added partition photovoltaic capacity, newly added partition wind power capacity and newly added wind-light space layout are output by using genetic algorithm to solve new energy partition layout optimization model considering space-time characteristics.The present application is more practical in engineering, easy to implement, at the same time, new energy power supply planning scheme is output by using genetic algorithm to solve new energy partition layout optimization model considering space-time characteristics, with fast calculation speed, good effect and the like.

This invention discloses a method and system for optimizing wind farm layout to balance noise and power generation. The method includes: establishing a multi-objective optimization model for wind farm layout; setting reference points and weight vectors based on decision preference information; and generating... N P A wind farm layout is used to form a parent population; the parent population is divided into several subpopulations and searched to generate mutation vectors; local difference operations are performed on the mutation vectors to obtain candidate layout solutions; based on the candidate layout solutions, a double substitution operation is performed on each target vector to generate a offspring population; the offspring population is merged with the parent population, and the optimal layout is selected. N P This invention involves repeatedly performing an optimization process on individual wind farms, outputting optimization results, and determining whether the decision-maker's preference information needs adjustment based on the optimization results. If not, it outputs the wind farm layout. This invention increases power generation while reducing wind farm noise, and can obtain a wind farm layout scheme that matches the decision-maker's preferences.

The invention belongs to the technical field of carbon dioxide geological sequestration, and relates to a simulation experiment device and method for coal rock and carbon dioxide action under high temperature and high pressure. Comprising a data acquisition and processing system, a high-temperature circulation control system, a high-pressure pumping system and a coal-rock reaction test system, the coal rock reaction test system comprises a reaction kettle, a coal rock sample, a uniaxial compression instrument arranged in the reaction kettle, and a pressure and temperature sensor for monitoring the temperature and pressure of the environment where the coal rock sample is located in real time; the high-temperature circulation control system is used for controlling and monitoring the reaction temperature in a reaction kettle in the coal rock reaction test system in real time; the high-pressure pumping system is used for controlling and monitoring the pressure in a reaction kettle in the coal rock reaction test system in real time; and the data acquisition and processing system is used for acquiring, processing, displaying and storing experimental data in real time. According to the invention, coal rock and carbon dioxide action underground in-situ condition simulation and mechanical property testing in a non-pressure-relief in-situ state are realized.

The invention discloses a method and device for determining a data association threshold and electronic equipment, and the method comprises the steps: obtaining the target data of an nth target at a current moment, and enabling the target data to comprise a target type recognition result, a target motion state parameter and a target course angle; and determining a position threshold in the data association threshold based on the target type identification result and a preset spatial position scaling coefficient, and determining a Doppler velocity threshold in the data association threshold based on the target motion state parameter and the target course angle in combination with a preset Doppler velocity threshold scaling coefficient. In the data association process, based on the target type recognition result, the target motion state parameters and the target course angle, the spatial position scaling coefficient and the Doppler velocity threshold scaling coefficient are combined, the data association threshold can be set in a self-adaptive mode, the whole association threshold setting process is flexible, and the accuracy is high. And by referring to the actual working condition of the target, compared with a traditional method, the method is wider in application range and has high engineering practical significance.