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130 results about "Operational principle" patented technology

Operating principles are the rules of the road that enable people to know what’s in bounds – and what’s out-of-bounds – in their companies and workplaces. Operating principles can serve as guides, helping people make sound decisions, building trust and enabling greater innovation.

Job scheduling system suitable for grid environment and based on reliable expense

The invention relates to an operation scheduling system which is applicable to the grid environment and based on the reliability cost; as indicated in graph 1, the whole system includes three layers: the first layer is an operation submission interface module 1; the second layer is an operation scheduling module 2 and the grid resource platform 7 as the substrate layer. From the perspective of the operational principle, the core of the invention is the operation scheduling module in the second layer, which includes a pre-scheduling module 3, a scheduling strategy module 4, an operation finish time prediction module 5 and a resource information module 6. The operation scheduling system in the invention proposes an operation running time prediction model and a resource usability prediction model; the operation running time prediction model based on the mathematical model and the resource usability prediction model based on the Markov model have high accuracy and high generality. The operation scheduling system adopts the copy fault-tolerance strategy, the primary copy asynchronous operation fault-tolerance strategy and the retry fault-tolerance respectively according to different operation service quality requirements and resource characteristics so that the operation scheduling system has high flexibility and high validity; meanwhile, the operation scheduling system supports the computation-intensive operation and the data-intensive operation to have good generality. Compared with the scheduling system in the prior art, the operation scheduling system has the advantages of supporting more concurrent users, improving the resource utilization rate, good generality, good extensibility and high system throughput.
Owner:HUAZHONG UNIV OF SCI & TECH

Nonlinear tunable mass and liquid damper

The invention discloses a nonlinear tunable mass and liquid damper used by combining a tunable mass damper and a tunable liquid damper through nonlinear springs. The nonlinear tunable mass and liquid damper comprises a solid mass block, a cavity, internal viscous liquid, a plurality of universal wheels, a preserved hole and a nonlinear spring device. The solid mass block and a closed shell outside the solid mass block serve as a center structure. The viscous liquid with a certain volume is added in the cavity and can circulate in the reserved hole in the mass block. The center structure is connected with baffles or walls on the periphery through the four sets of nonlinear springs outside the cavity. Rotating shafts are arranged at the joints between the nonlinear springs and the baffles or walls so that the nonlinear springs can horizontally rotate. The universal wheels are arranged at the bottom of the center structure so that the damper can freely move in the horizontal plane. According to the working principle, energy input into a building through an earthquake or / and wind vibration is dissipated by means of the mass of the solid block, the non-linear springs and friction force provided when the viscous liquid flows through the small hole in the solid block. The nonlinear tunable mass and liquid damper integrates the advantages of the tunable mass damper and the tunable liquid damper, is installed on the top of a high-rise building, and is simple and reliable in structure, low in manufacturing cost and capable of achieving the good damping effect.
Owner:TONGJI UNIV

Hydro-viscous drive characteristic testing system

The invention discloses a hydro-viscous drive characteristic testing system, and is applicable to simulating oil film power drive characteristic between rotary interfaces on various working conditions. The hydro-viscous drive characteristic testing system mainly comprises a base, a motor, a coupler, a torque sensor, a hydro-viscous drive device and a hydraulic control system. The hydro-viscous drive device comprises an input shaft, an output shaft, a driving friction plate, a driven friction plate, a left supporting plate, a right supporting plate, a shell, a sealing component and the like. The hydraulic control system mainly comprises a motor, a double-pump, a proportional spill valve, an electromagnetic reversing valve, a throttling valve, a flowmeter, a filter, a pressure transmitter, an oil tank and the like. The hydro-viscous drive characteristic testing device and the system are implemented according to the operation principle of utilizing shear force of an oil film between the friction plates to transmit power and regulating transmission torque by changing the thickness of the oil film or rotational speed of the motor. The hydro-viscous drive characteristic testing system is simple in structure, low in cost, convenient to operate, safe and reliable, can be used for researching on characteristics of flow field, pressure field, temperature field and transmission torque of the oil film between the rotary interfaces on various working conditions, and has practicability in a wide scope.
Owner:JIANGSU UNIV

Top drive simulation system and method

The invention discloses a top drive simulation system and a method. The simulation system comprises top drive simulation operation equipment, a PLC (programmable logic controller) and a control unit, wherein the control unit comprises a main control machine, a parameter machine and a graph processing machine; the top drive operation equipment is connected with the PLC; the PLC is connected with the parameter machine through a serial port, and the parameter machine and the graph processing machine are respectively connected with the main control machine through a communication network. The simulation method comprises the following steps that S1, switch and knob state data are collected; S2, the data are sent to the main control machine; S3, the main control machine carries out calculation; S4, virtual showing is carried out. The invention provides the top drive simulation system and the method. The system has the advantages that the occupied ground is small, the maintenance cost is low, the damage cannot easily occur, the full-dimension and full-physical operation environment can be provided, the strict underground mathematical simulation is adopted, so the system and the method conform to the real process requirements, and meanwhile, the system has the top drive work principle 3D (3-dimensional) animation display function, so that trainees can better understand the top drive work principle and a wearing part maintenance method.
Owner:SOUTHWEST PETROLEUM UNIV +1

Directional rzeppa universal joint

The invention relates to a directional rzeppa universal joint with the operational principle of changing circumferential motion into plane intermittent motion. A horizontal intersecting plane of two axes is used as an acting surface, and the directional rzeppa universal joint gradually loses effectiveness when leaving the acting surface, being similar to installing a switch in a circumferential track, opening the switch for outputting power when each steel ball runs to two points at 90 degrees and 270 degrees (with 0 degree as a peak), and gradually closing the switch without exerting action after the steel balls leave the two points so as to eliminate interference. The directional rzeppa universal joint completely eliminates the operation mode of traditional rzeppa universal joints and achieves approximately unchanged transmission, unchanged angular speed and unchanged movement radii of the two connected axes when angles are changed by utilizing space alternating tracks, so that the directional rzeppa universal joint can run at completely equal speed, the track interference is eliminated, the bearing capacity is improved through the change of a main structure, and the directional rzeppa universal joint has three integrated degrees of freedom on a node, with which the past universal joint can not compare. In sum, the directional rzeppa universal joint can effectively work under all environments needing universal joints.
Owner:丛滨江 +1

Multistable energy capture device with linkage effect

The invention discloses a multistable energy capture device with a linkage effect. The device comprises an energy capture device foundation bed, springs, an array energy capture device and an electricenergy storage and management system. An integral working principle is disclosed in a diagram 1, external vibrational excitation enables a piezoelectric cantilever beam to generate deformation, a direct piezoelectric effect is used, a piezoelectric plate converts vibration energy into electric energy, and then, the electric energy is conveyed to an electric energy storage and management system torealize a self-energy-supply sensor. The multistable energy capture device with the linkage effect has the following advantages that: (1) an array layout with different energy capture devices is adopted, each energy capture device has different inherent frequencies, and energy can be efficiently recovered in a large frequency range; and (2) the springs are adopted to connect the array energy capture devices, in addition, consistent acting force among magnets on an end part realizes the energy capture device linkage effect of the array, the whole device presents a multistable effect, and energy capture efficiency is improved. In addition, compared with a traditional multistable energy capture device based on an external magnet magnetic coupling effect, the device disclosed by the inventionhas a simple structural layout, miniaturization even microminiaturization can be realized, and electric energy is provided for the self-energy-supply sensor of the future Internet of Things era.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Method of calibration of magnification of microscopes having different operational principles for bringing them into a single, absolute scale

A method of calibration of magnification of a microscope with the use of a diffraction grating has the steps of determining a mean period of a diffraction grating by irradiating the diffraction grating with an electromagnetic radiation having a known wavelength and analyzing a resulting diffraction pattern, determining a scatter of individual values of a period of the diffraction grating by multiple measurements of periods of the diffraction grating by a microscope in pixels in one area in a microscope field of view, and calculating a mean value of the period and the scatter based on the measurements, determining a sufficient number of measurements of the period for providing an accepted statistic error of a magnification of the microscope, performing measurements corresponding to the determined acceptable number of measurements, of individual values of the period in pixels in a plurality of portions of the diffraction grating, calculating a general mean value of the period in pixels based on the immediately preceding step, and finally calculating a parameter corresponding to the magnification of the microscope based on the determined mean value of the period of the diffraction grating in the microscope image and the calculating of the general mean value of the period in pixels.
Owner:GEN PHOSPHORIX

Torque protection device and working principle thereof

The invention discloses a torque protection device. A bearing pedestal is arranged at the position, close to a speed reduction mechanism, of an input shaft in a sleeving way, and is fixedly connected with the speed reduction mechanism through screws, wherein a belt pulley is arranged on the bearing pedestal in the sleeving way; a bearing is arranged between the bearing pedestal and the belt pulley; a first pressure plate is arranged on the surface, away from the speed reduction mechanism, of the belt pulley through a screw; the left side of the first pressure plate is meshed with a second pressure plate; a third pressure plate is arranged on the left side of the second pressure plate; a pair of locking nuts is fixed on the left side of the third pressure plate; a plurality of steel balls are arranged between the second and third pressure plates; a safety pin is arranged between the third pressure plate and the input shaft; a belleville spring is arranged on the right side of the second pressure plate. According to the torque protection device, the steel balls are additionally arranged between the second and third pressure plates, the belleville spring is arranged between the second pressure plate and the bearing pedestal, and when output force exceeds a set load, the steel balls are separated, and the first and second pressure plates are bounced off by the belleville spring, so that the rotation of the belt pulley cannot be transferred to the input shaft, and the aim of protecting a speed reducer is fulfilled.
Owner:章臣重工(苏州)有限公司

Magnetostriction high-precision time measurement system based on electro-magnetic induction

The invention provides a magnetostriction high-precision time measurement system based on electro-magnetic induction and relates to the fields of electromagnetism, electronic technique, sensor technology and digital signal processing. According to the magnetostriction high-precision time measurement system based on electro-magnetic induction, firstly a time measurement sequence chart is designed according to an operating principle of a magnetostrictive displacement sensor, and then the magnetostriction high-precision time measurement system is built based on electro-magnetic induction on complex programmable logic device (CPLD). The magnetostriction high-precision time measurement system comprises a time interval acquisition module, an inductive pulse signal processing module, a counting module and a counted data processing module. The time interval acquisition module comprises a drive pulse generating circuit, a time-delay circuit and a remote sensing (RS) trigger circuit, and the counting module comprises a 16-digit counter and an inner crystal oscillator. The magnetostriction high-precision time measurement system based on electro-magnetic induction has the advantages that the functions are achieved by adopting the CPLD, high measurement precision can be achieved when the CPLD with a higher speed is adopted, and design flexibility of the circuits is improved. The accuracy of the magnetostrictive displacement sensor is improved due to the fact that the structure of the circuits is simplified, the cost is lowered, and equipment can be downsized easily.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Optical spectrum generator and use thereof

The invention discloses a photoelectric conversion law which is taken as a technical background and provides a spectrum generator of solar light source and fuel light source, and applications thereof, aiming at solving the difficult problems of world energy resource and global climate change. The book detailedly describes: the composition of the total structure of the spectrum generator and the functions thereof, the composition and the working principle of the core technique: a photoelectric conversion system, the fabrication process of the photoelectric elements, a basic type of the photoelectric conversion system and a combination type of the photoelectric conversion system in the total structure of the spectrum generator, detailed execution type of the spectrum generator and a light source spectrum generator and the generalization application type thereof on the ground and in the outer space, thus achieving the object of solving the difficult problems. The working principle of the spectrum generator of the photoelectric conversion system is that a solar light source light with white spectrum and distributed according to space (21) is assembled on a spectrum cell (24) by decomposition of a prism (22) and the condensation of a lens (23) and reconstructed as a solar light source colourful spectrum which is matched with the spectrum cell, distributed according to the plane, and has high light intensity and minimum loss with relative optical path deduction, with 90% of the light energy converted into the electric energy; the practical relative efficiency of the spectrum cell is more than 90%; the effective efficiency of the spectrum cell achieves more than 30% in normal situation; the working temperature is lower and the working can be more stably under the cooling of a cooling device (25).
Owner:张培榕

Hydraulic power pick

The invention discloses a hydraulic-power pickaxe, and belongs to the technical field of agricultural machines. The hydraulic-power pickaxe comprises a stander, a suspension bracket, an operation shoveling bracket, a depth-limitation wheel, a soil ripping shovel, a hydraulic system, a power transmission system, a soil-rolling mechanism, etc. The soil ripping shovel is fixed on the operation shoveling bracket; the operation shoveling bracket is connected with a hydraulic cylinder to form a soil ripping mechanism. The soil-rolling mechanism consists of a plurality of soil-rolling wheels arranged on the stander for adjusting the operation depth, which can imitate a shape, thereby improving the adaptability of the operation. The hydraulic-power pickaxe adopts a novel operational principle for realizing a virtual and real plowing, and the globular shape soil ripping technology thereof can perform the globular shape soil ripping to a high solid rangeland, thus avoiding the soil from plowing and perturbation to a large extent, improving the soil quality, improving the air permeability of soil and the impounding ability of the rangeland, keeping the ground vegetation from being damaged, reducing the evaporation of the soil moisture and increasing the coverage rate of the ground vegetation, thus meeting the agricultural requirement of grassland improvement.
Owner:CHINA AGRI UNIV

Building automatic fire fighting device simulation training system based on virtual reality

InactiveCN107481572AReduce consumptionSolve the problem of insufficient training conditionsCosmonautic condition simulationsFire rescueResource consumptionDevice simulation
The present invention provides a simulation training system for building fire-fighting device early-phase fire detection, fire automatic alarm and fire rescue based on virtual reality. The virtual reality simulation technology is employed for construction, and the system comprises an automatic sprinkling fire extinguishing system practical exercise module, an automatic gas fire extinguishing system practical exercise module and an automatic foam water spray fire extinguishing system practical exercise module. The building automatic fire fighting device simulation training system based on the virtual reality employs the virtual reality technology to satisfy the fire-fighting practical training demands, provides simulation, visual and interaction learning environment, and performs virtual construction of the three-dimensional structures, operational principles, virtual operation and simulation model inspection and maintenance of an alarm system, a fire-fighting device and the like so as to improve the practical training experience and fire-fighting operational ability, reduce the practical training resource consumption and improve the safety, and the practical training result is objective and accurate.
Owner:天津市摩派科技有限公司
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