37results about How to "Flexible loading method" patented technology

The invention discloses a three-dimensional similarity simulation test method including the steps: A, test-piece preparation; B, loading; and C, excavation and observation. By the method, complex distribution phenomena of coal bed stress in different roof movement phases during underground excavation can be simulated, and large-inclination-angle ore bed test pieces can be manufactured more conveniently and effectively, so that rock masses can be guaranteed to be under the three-directional stress condition in the whole excavation process, underground space excavation under more working conditions can be studied, the height on the earth surface of a whole system is decreased, construction cost is lower, and the system is more stable.

The invention discloses a three-way load large-scale three-dimensional analog simulation test system. The system comprises a test piece box and a counter-force system. The test piece box can change into different sizes through the flexible arrangement of a screw hole belt, different testing requirements are met, and the counter-force system comprises a concrete counter-force pool which is located under the ground and a counter-force which is fixed with the counter-force pool. According to the system, complex distribution phenomena of coal seam stress in different moving stages of top plates during underground mining can be simulated, the method is convenient to produce high inclination-angle ledge test pieces, the effect is good, during the overall mining process, rock mass exists under the condition of three-dimensional stress, underground space excavation under multiple working conditions can be studied, the height of the whole system above the ground surface is reduced, the construction cost is low, and the system is stable.

The invention discloses a three-direction loading large-scale three-dimensional analog simulation test counterforce system which comprises an underground concrete counterforce pool and a counterforce frame fixed with the counterforce pool. The system is capable of simulating complex distribution of coal seam stress in different top plate moving stages during underground excavation, manufacturing large-inclination-angle ore bed test pieces is more convenient and effective, rock mass can be stored under the conditions of three-dimensional stress in the whole mining process, and underground space excavation under more operating conditions can be researched. In addition, the aboveground height of the whole system is decreased, and the system is lower in manufacturing cost and more stable.

The invention discloses a triaxial-loading large three-dimensional similar simulation test sample box. The sample box is characterized in that a screw hole belt is arranged flexibly, and accordingly the sample box can be changed into different sizes, and different testing requirements are met. Complex distribution of coal seam stress of different top plates in motion stage in downhole digging process can be simulated, ore bed samples at large inclination angles are manufactured more conveniently and effectively, rock mass can be guaranteed to be stored under triaxial stress in the whole mining process, digging of underground space under more work conditions can be researched, height on the whole system surface is lowered, cost is lower, and a system is more stable.

The invention discloses a three-direction loading large-scale three-dimensional analog simulation test sampling method. The method includes the steps: (1) inclining a test piece case; (2) obtaining prefabricated test piece stress measuring points to arrange the position of a pressure sensor; (3) obtaining the optimal proportion of similar materials of each stratum; (4) sequentially containing each stratum until all rock stratums are contained in the test piece case; and meanwhile, arranging the sensor and an oil sac in a test piece; and (6) enabling the test piece box to recover to the horizontal position after the similar materials are dried. By means of the method, complex distribution of coal seam stress in different top plate moving stages during underground excavation can be simulated, manufacturing large-inclination-angle ore bed test pieces is more convenient and effective, rock mass can be stored under the conditions of three-dimensional stress in the whole mining process, and underground space excavation under more operating conditions can be researched. In addition, the aboveground height of the whole system is decreased, and the system is lower in manufacturing cost and more stable.

The invention discloses an information processing method and electronic equipment. The information processing method is applicable to the electronic equipment. The electronic equipment comprises at least one memory cell. The information processing method comprises the following steps: starting the electronic equipment; loading system firmware; providing an interaction interface by the system firmware; responding to user operation and generating a searching command by the interaction interface; based on the searching command, searching effective operating system loading programs in the at least one memory cell; when the effective operating system loading programs are searched, acquiring a first operating system loading program in all the operating system loading program by the system firmware; and based on the first operating system loading program, establishing operating system startup options of the first operating system by the system firmware.

The invention discloses a cylindrical test specimen lateral dynamic uniform distribution load testing apparatus. The apparatus comprises a reaction wall (11), holders (9), a steel baffle (8), an anchor arm (7) and a horizontal actuator (12). One end of the horizontal actuator (12) is fixed at the reaction wall (11), and the other end of the horizontal actuator (12) abuts against one end of a test specimen (6) close to the reaction wall (11). The apparatus further comprises a door-type guide rail (1) perpendicular to a foundation plane (10), a weight-bearing beam (2) capable of falling free along the door-type guide rail (1), a drop hammer (3) fixedly connected to lower middle part of the weight-bearing beam (2), a water bag (5) on the upper portion of the test specimen (1), and a steel distribution beam (4) above the water bag (5). The apparatus is capable of testing the dynamic response characteristics of beams, columns and other cylindrical test specimens under interaction of transverse uniform dynamic load and axial force.

The invention relates to a device and a method for testing high-temperature low-cycle fatigue performance of a rotor blade, and belongs to the field of precise instruments. A tensile loading module is connected with a supporting platform through bolts on an X-direction moving platform, a servo hydraulic cylinder of a bending fatigue loading module is rigidly connected with the supporting platform, a sliding table of a high-temperature environment building module is rigidly connected with an upper supporting frame, and a first auxiliary supporting assembly and a second auxiliary supporting assembly of the supporting and positioning module are rigidly connected with the supporting platform. The first auxiliary supporting assembly is connected with a first middle connecting piece of the tensile loading module, and the second auxiliary supporting assembly is connected with a second middle connecting piece of the bending fatigue loading module. The device has the advantages that 0-10 kN static tensile load loading and 0.001-5 Hz low-frequency bending fatigue loading of the blade are achieved respectively, the high-temperature environment construction module can achieve high-temperature testing environment construction of the blade, and the high-temperature tensile-bending combined load condition borne by the aircraft blade in the actual service process is accurately simulated.

The invention relates to a radio frequency tag identification and near field communication system based on a planar magnetic metamaterial, and the main work frequency is 13.4-13.7 MHz. The system is formed by a signal transmitting coil (1) and a receiving terminal coil (4) connected with a radio frequency tag and near field communication chip, a transmitting terminal magnetic metamaterial (2) is arranged in the signal transmitting coil (1), and a receiving terminal magnetic metamaterial (3) is arranged in the receiving terminal coil (4). Compared with the prior art, according to the radio frequency tag identification and near field communication system, the transmission efficiency of electromagnetic energy and signals is improved by employing two planar magnetic metamaterial parts with the same resonant frequency in the magnetic field resonance with the same frequency range, the system can effectively receive the signals when the position of a receiving terminal has certain dislocation and declination, the magnetic field generated by the magnetic metamaterial in the system is relatively flat and uniform, simultaneous transmission of the signals via multiple receiving terminals is facilitated, and the identification and communication efficiency is improved.

The invention discloses a method for testing reliability of an electro-hydraulic-magnetic-hybrid-loaded servo power tool rest. An electro-hydraulic and magnetic hybrid loading servo power tool rest reliability test platform comprises a console, a tool rest, a hydraulic system, a common tool bit loading system, a loading system base and a power head loading system. A servo power tool rest transposition test, a servo power tool rest common tool bit loading test, a servo power tool rest 90-degree loading test and a servo power tool rest 180-degree loading test are carried out; the power head loading system can realize conversion between 90-degree power head loading and 180-degree power head loading; a dynamic load is loaded and applied and a dynamic load condition is detected; the dynamic force application condition is detected and recorded through a displacement sensor and a force detection coil, and the torque application condition is obtained through an electric dynamometer.

The present invention belongs to the field of mobile terminal information technologies, and specifically discloses a picture display method for a mobile terminal. The mobile terminal comprises a display screen. The method comprises: obtaining a screen size of a display screen for displaying pictures and a number n of to-be-displayed pictures; and selecting a corresponding picture display mode according to the number n of the to-be-displayed pictures, and calculating the size of each to-be-displayed picture according to the screen size and the picture display mode, wherein when the number n of displayed pictures is not more than N, the corresponding picture display mode is to display all the to-be-displayed pictures; and when the number n of the displayed pictures is more than N, the corresponding picture display mode is to display N to-be-displayed pictures, and the last picture is a prompting picture. Therefore, the method discloses by the present invention can not only improve loading performance of the displayed pictures and make a loading mode flexible, but also can automatically allocate picture layout, so that a more beautiful picture display, a better visual effect and a better user experience can be achieved.

The invention provides a static pressure supporting hydraulic cylinder structure. The static pressure supporting hydraulic cylinder structure comprises a cylinder barrel, a front bearing, a rear bearing, a tail barrel, a rear flange, a displacement sensor, a piston, a flexible sling, a pressure sensor and a dial indicator, wherein the front bearing is connected with the front end of the cylinder barrel; the rear bearing is connected with the rear end of the cylinder barrel; the front end of the tail barrel is connected with the rear bearing, the rear end of the tail cylinder is connected with the rear flange, and the displacement sensor is connected into the rear flange; a piston rod at the inner side end of the piston penetrates through the tail barrel to be connected with the displacement sensor; the outer side end of the piston is connected with the lower end of the flexible sling, the pressure sensor is connected to the flexible sling, the upper end of the flexible sling is connected with a loading device, and the dial indicator is connected with the outer side end of the piston. The static pressure supporting hydraulic cylinder structure has the advantages that the outer side of the piston rod is connected with the flexible sling, external loading force is tested through the pressure sensor, and when a hydraulic cylinder is used, the whole hydraulic cylinder has the advantages of being small in friction force, high in bearing capacity, long in service life and the like.