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247results about How to "Reconfigurable" patented technology

Reconfigurable lead screw pair and guide rail pair accelerated life electro-hydraulic servo test bench

The invention provides a reconfigurable lead screw pair and guide rail pair accelerated life electro-hydraulic servo test bench which is characterized in that two lead screw bearing seats of a T-shaped table between two guide rail mounting tables on a base are provided with lead screws connected with a motor; guide rails on the guide rail mounting tables are matched with guide rail sliding blocks; guide rail sliding block backing plates on the guide rails, a grating bar reading head on one guide rail mounting table and nut bases on the nuts of the lead screws are connected with the bottom of a stressed sliding table; one side of the stressed sliding table is meshed with a gear at the end part of the output shaft of a magnetic powder brake through a gear rack; the other side face of the stressed sliding table is opposite to a force application wheel of a transverse loading mechanism; and the upper part of the stressed sliding table is opposite to a force application wheel of a vertical loading mechanism. The test bench provided by the invention can be used for realizing the accelerated life test of three-way dynamic loading of multiple types of lead screw pairs and guide rail pairs, collecting test data required for evaluating the residual lives and degradation mechanisms of the lead screw pairs and the guide rail pairs in real time, and providing more reliable test basis for the design and maintenance of the lead screw pairs and the guide rail pairs.
Owner:SOUTHWEST JIAOTONG UNIV

Multi-point male die liquid-filling drawing forming device and method for plate

ActiveCN103861927AMulti-step formingRaise the forming limitLiquid mediumEngineering
The invention discloses a multi-point male die liquid-filling drawing forming device and a multi-point male die liquid-filling drawing forming method for a plate, relates to a device and a method for forming thin-walled curved plate parts, and aims to solve the problem of difficulty in forming of thin-walled and deep-cavity parts with complicated curved surfaces. A plurality of small punches are independently arranged; the upper ends of the small punches penetrate into through holes in a male die body; the upper end of each small punch is connected with a linear driving device; a female die is a semi-closed cavity of which the upper end is opened and the lower end is closed; an elastic base plate and a metal protection plate are superposed on the upper end surface of the female die from bottom to top. The heights of the small punches are adjusted to realize the construction of an outer contour of a multi-point male die; a to-be-formed plate blank, the elastic base plate and the metal protection plate are sequentially arranged on the upper end surface of the female die; a blank holder moves down to be assembled with the female die, and the multi-point male die moves down and applies a drawing force to the to-be-formed plate blank; meanwhile, a liquid medium is filled into an inner cavity of the female by the aid of a pressurizing system until drawing is completed to obtain parts of a required shape. The device and the method are used for forming the plate, and the thin-walled and deep-cavity parts with the complicated curved surfaces can be formed.
Owner:HARBIN INST OF TECH

Construction method of adaptive dynamic design platform aiming at mechanical device

The invention discloses a construction method of an adaptive dynamic design platform aiming at a mechanical device. The construction method mainly comprises the steps of: erecting an adaptive service platform suitable for a target mechanical device, performing tracking dynamic design on a target product, and performing variable optimization design on a target model machine; and erecting a PDM (product data management) service platform as a link of the innovative service integration platform to couple the adaptive service platform, the tracking dynamic design and the variable design into a whole. The construction method can be promoted in other design and manufacturing industries, the prevailing significant problems such as long cycle of design and production, instable design quality, large amount of repeated work of personnel and high cost can be solved, experience of design and manufacturing can be accumulated and repeatedly used, reconstruction and remanufacturing can be realized, waste of resources can be reduced, seamless integration of demand conversion, product design, analysis, simulation and manufacturing can be realized ultimately, the structure of the target product can be optimized, the performance of the target product can be stabilized, rapid transformation can be realized, and the core competitiveness of enterprises can be enhanced.
Owner:TIANJIN UNIV

Digital signal processor with reconfigurable low power consumption data interleaving network

The invention discloses a digital signal processor with a reconfigurable low power consumption data interleaving network, which comprises an N-channel parallel vector operation unit, an N-channel parallel vector register file, an N-channel parallel vector memory and an N-channel reconfigurable parallel data interleaving network, wherein the N-channel reconfigurable parallel data interleaving network is used for connecting the N-channel parallel vector operation unit, the N-channel parallel vector register file and the N-channel parallel vector memory and managing data transmission therein. The utilization of the digital signal processor can lead data to realize the continuous uninterrupted parallel transmission and directly input to an operand from an operation result bypass of the N-channel parallel vector operation unit when necessary without passing through the N-channel parallel vector register file and/or the N-channel parallel vector memory through the N-channel reconfigurable parallel data interleaving network, thereby overcoming the technical limitations of the traditional data transmission management, improving the data transmission efficiency, reducing the power consumption and meeting the needs of data interweaving in different widths.
Owner:BEIJING SMART LOGIC TECH CO LTD

Frequency/polarization/pattern-independent reconfigurable patch antenna by adopting liquid crystal material to enhance polarization reconfigurable capability

The invention discloses a frequency / polarization / pattern-independent reconfigurable patch antenna by adopting a liquid crystal material to enhance polarization reconfigurable capability, which comprises a first dielectric plate, a second dielectric plate, an octagonal metal patch, an octagonal metal ring, diamond parasitic metal patches, a metal plate and a reconfigurable power division phase shifter with the liquid crystal material, wherein the second dielectric plate is located below the first dielectric plate, and the upper surface of the second dielectric plate coincides with the lower surface of the first dielectric plate; and the reconfigurable power division phase shifter with the liquid crystal material in the second dielectric plate is used for enhancing the polarization adjustment capability of the antenna under a different reconfigurable frequency. Independence and reconfigurability of the antenna frequency, the polarization and the pattern can be realized, the dielectric constant of the liquid crystal material is adjusted through controlling bias voltage, the polarization characteristics of the antenna under a different reconfigurable frequency can be adjusted, the circular polarization performance is improved, the polarization reconfigurable capability, of the antenna is further enhanced, and the antenna can be switched flexibly among different frequency bands, different polarization modes and different radiation points.
Owner:BEIHANG UNIV +1

Multifrequency directional-diagram reconfigurable antenna based on double-open resonant ring

The invention discloses a multifrequency directional-diagram reconfigurable antenna based on double-open resonant ring, relates to an antenna, and specifically relates to a directional-diagram reconfigurable antenna so as to solve the problem that the existing reconfigurable antenna is complex in structure and can not operate simultaneously at multiple different operating frequencies. The reconfigurable antenna comprises a first metal sheet, a round metal-form feed wafer, a dielectric slab, four second metal sheets, four metal open resonant rings and eight switches, wherein a layer of metal sheets is attached to the lower surface of the dielectric slab, the round metal-form feed wafer is attached to the middle part of the upper surface of the dielectric slab, the four metal open resonant rings are arrayed around and attached to the periphery of the round metal-form feed wafer, each metal open resonant ring is of a circular concentric inside-outside dual-ring structure, and the opening of one inner ring of each metal open resonant ring is provided with a switch. The multifrequency directional-diagram reconfigurable antenna based on double-open resonant ring is applied to wireless communication systems.
Owner:36TH RES INST OF CETC +1

Reconfigurable substrate integrated waveguide bandpass filter and reconfigurable method of filter

The invention discloses a reconfigurable substrate integrated waveguide bandpass filter and a reconfigurable method of the filter and mainly solves technical problems that the tuning range is small, the insertion loss of reconfigurable substrate integrated waveguide bandpass filters is high and control voltage of variable capacitance diodes cannot be directly applied to substrate integrated waveguides. One variable capacitance diode is placed in a non-metal via hole formed in the center of each of two complementary split-ring resonators of the bandpass filter, the metal part at an inner ring opening of each complementary split-ring resonator is replaced with a blocking capacitor, so that a substrate integrated waveguide is separated from an outer circuit, and a voltage source is prevented from being short-circuited; the variable capacitance diodes are connected with a direct-current bias circuit, reversed bias voltage at two ends of the variable capacitance diodes is adjusted, junction capacity of the variable capacitance diodes is changed, so that the resonant frequency of the two complementary split-ring resonators is affected, and the passband center frequency is reconfigurable. The feeding manner of the variable capacitance diodes in the substrate integrated waveguide is realized, the control manner is simple and easy to implement, the frequency tuning range is relatively large, the in-band insertion loss is low, and the filter can be applied to a wireless communication system.
Owner:XIDIAN UNIV +1

Intelligent electric car testing bench used for environment sensing configuration and testing

The invention discloses an intelligent electric car testing bench used for environment sensing configuration and testing. The intelligent electric car testing bench comprises a frame body, three-axis moving assemblies, three-axis rotating assemblies, environment sensors, a middle sensing support, three-dimensional calibration assemblies and two-dimensional calibration assemblies, wherein the plurality of three-axis moving assemblies are arranged on the frame body, the middle sensing support is arranged on the middle part of the frame body, the middle sensing support is also provided with a plurality of three-axis moving assemblies, the three-axis rotating assemblies are arranged on the three-axis moving assemblies, the environment sensors are arranged on the three-axis rotating assemblies, and the three-dimensional calibration assemblies and the two-dimensional calibration assemblies are corresponding to the environment sensors. The intelligent electric car testing bench has the advantages that on-loop design of calibration and configuration schemes and related testing of vehicle environment sensors can be realized on expected vehicle types; data of the environment sensors under different calibration or configuration schemes is stored, and the calibration content under a plurality of conditions are further completed; in addition, the cost is lowered, the efficiency is improved, the materials corresponding to parts are reasonably selected, and the service lifetime is long.
Owner:JILIN UNIV

Dynamic reconfigurable ground measuring and controlling system

ActiveCN106314828AEasy to controlCan support multi-tasking requirementsCosmonautic vehicle trackingIntermediate frequencyInput/output
The invention discloses a dynamic reconfigurable ground measuring and controlling system and belongs to the field of automatic testing. The system comprises a resource pool, a connection matrix and a centralized monitoring and controlling platform; the resource pool comprises all former subsystems, terminal equipment and public equipment in the ground measuring and controlling system; the connection matrix is composed of two rows of middle-frequency switching matrixes; all the equipment in the resource pool is connected to an input/output end of the connection matrix in advance; the centralized monitoring and controlling platform is used for controlling a virtual matrix to change connection relations of the equipment in the resource pool; each connection relation corresponds to one testing system and a capability of executing one type of task is realized, so that rapid reconfiguration of the ground measuring and controlling system is realized; the problems that a multi-task supporting capability is poor, a plurality of sets of matched equipment are needed, the research cost is high, the resource utilization rate is low, the working amount of modifying and upgrading a ground measuring and controlling station is great and the like are solved.
Owner:BEIJING RES INST OF TELEMETRY +1

Modulization-based method for designing reconfigurable machine tool

The invention relates to a modulization-based method for designing a reconfigurable machine tool, including the following steps: firstly, establishing a module based on parametric design; secondly, researching a module code system, and utilizing the theory of genetic algorithm to carry out the systematic coding of each module; thirdly, carrying out the optimization design of each module to optimize the structure of each coding module; fourthly, carrying out the operation of topology, utilizing the graph theory to design the reconfigurable functional topological structure to express the topological relation of the functions, and selecting the topological structure of the reconfigurable machine tool; fifthly, automatically assembling the modules, establishing a parameterized module library according to the selected topological structure of the reconfigurable machine tool, and selecting mechanical modules from the module library to form the entire reconfigurable machine tool by assembly; and sixthly, evaluating and researching the performance of the machine tool from the aspects of technical performance and economic performance. The method fast meets the variable requirements of part manufacturing by the module configuration, and provides the redundancy-function-free machine tool, thereby realizing the optimization of function and cost.
Owner:TONGJI UNIV

Broadband tripolar reconfigurable filter antenna with high gain

The invention relates to a broadband tripolar reconfigurable filter antenna with high gain, which belongs to the technical field of antennas. The filter antenna comprises three dielectric substrates,a laminated patch, a driving patch, a feeder part, a coaxial cable and a grounding plate. Three dielectric substrates are laminated. The laminated patch is arranged on the upper surface of the upper dielectric substrate. The driving patch is arranged on the upper surface of the intermediate dielectric substrate. A pair of back-to-back U-shaped grooves is etched on the driving patch. The feeder part comprises a rectangular coupling strip, a metal pillar and a power dividing phase shifting network. The rectangular coupling strip is arranged on the lower surface of the intermediate dielectric substrate. The power dividing phase shifting network is arranged on the upper surface of the lower dielectric substrate. The rectangular coupling strip is connected with the power dividing phase shiftingnetwork through the metal pillar. The grounding plate is arranged on the lower surface of the lower dielectric substrate. The coaxial cable is arranged at the center of the grounding plate. The antenna provided by the invention has the characteristics of simple structure, good frequency selection and out-of-band suppression.
Owner:CHONGQING UNIV

Open type intelligent milling system and milling method based on same

The invention relates to an open type intelligent milling system and a milling method based on the same, belonging to the field of machining and solving the problem of incapability of maintaining a processing target to be always optimal through offline optimized processing parameters in the traditional milling system for optimizing by adopting an offline algorithm. The open type intelligent milling system disclosed by the invention comprises a three-way piezoelectric type dynamometer sensor, an A/D (Analogue/Digital) conversion circuit, an industrial PC (Personal Computer), a PCI (Peripheral Component Interconnect) data acquisition card, a milling controller, an Soft SERCANS communication card, an input/output module and n servo drivers. The milling method disclosed by the invention comprises the following steps of: acquiring a cutting force generated by interaction between a work-piece and a cutter in real time; obtaining a feeding multiplying power by the milling controller so as toobtain a new feeding speed as the next feeding speed of the cutter; determining a next position of a machine tool; transmitting a position instruction to the corresponding servo drivers by the milling controller through the Soft SERCANS communication card and the input/output module so as to control the corresponding cutters to move; and realizing the intelligent control of the processing.
Owner:HARBIN INST OF TECH
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