205 results about "Motor test" patented technology

The invention discloses a motor test bench system, which comprises a hardware system architecture and a software system architecture, wherein the hardware system architecture comprises a mechanical load and sensing unit, a centralized power supply and excitation unit, a data acquisition and control center and an upper computer system; the software system architecture comprises a unified data layer, an automatic control layer, a dynamic load regulation layer, a full-automatic test sequence layer, a man-machine interaction layer, a data analysis and report layer and a collaborative development interface; the problems that an existing test bench is single in signal collection, incomplete in information collection and poor in data synchronism; the load cannot be dynamically changed in real time; and high-order test data results are poor in visualization and cannot be directly converted into test reports.

The invention relates to the technical field of motor test equipment, in particular to a multifunctional motor test operation system and method, and the method comprises the steps: a parameter detection module synchronously collects voltage, current, frequency, temperature, vibration, insulation resistance and DC resistance parameters, and converts the parameters into electric signals; the data processing module carries out amplification, filtering and analog-to-digital conversion on the electric signal to obtain a measured value; the storage module stores the measured value; and the report generation module automatically generates a test run report containing parameter analysis and qualification conclusions through a preset template based on the stored value. The parameter detection module synchronously collects various parameters and converts the parameters into electric signals, the data processing module processes the signals to obtain accurate measured values, the storage module stores data, and the report generation module automatically generates a test run report containing analysis and conclusion based on the stored values. The problems that the function is single, data integration is difficult and report generation is tedious are solved, the testing efficiency and accuracy are remarkably improved, and manual errors are avoided.

The utility model relates to the field of push rod motor test, put forward a kind of push rod motor life test equipment, including base, the top of base is fixedly connected with support, the top of base is fixedly connected with recessed plate, the inner wall bottom top of recessed plate is fixedly connected with spring, the utility model drives first clamping plate, second clamping plate, third clamping plate, fourth clamping plate, threaded rod, threaded block, fixed plate, limit rod, connecting plate, recessed block etc. Assembly mutual cooperation by the driving force of motor, realizes the motor that starts to penetrate in hollow plate positive side, to drive the threaded rod rotation fixed in output shaft, threaded rod rotation drives the linear motion of threaded block in the circumference of limit rod in the circumference, in the detection process to push rod motor, prevent push rod motor from happening to shake, avoid the damage to staff and detection equipment, and simultaneously can detect multi-rod push rod motor.

The utility model relates to the technical field of motor testboards, and discloses a motor testboard with a buffer function, which comprises a workbench, a torque sensor and a load, a heat dissipation mechanism is fixedly arranged on one side of the upper end face of the workbench, and a buffer mechanism is fixedly arranged on one side of the middle of the upper end face of the workbench. A to-be-detected motor is clamped at the upper end of the buffer mechanism, the heat dissipation mechanism comprises a shell and a fence net, an upper groove is formed in the upper end face of the shell, and a wind shell is rotationally arranged between the inner wall of the front side and the inner wall of the rear side of the upper groove. According to the utility model, the rotating bidirectional threaded rod drives the two threaded blocks to get close to each other through threads, the two clamping arc plates clamp the motor to be detected, the motor to be detected is convenient to place, the support plate is arranged below the motor to be detected for supporting, and the spring damper is arranged below the support plate, so that the started motor to be detected can be buffered; and the to-be-detected motor can be placed more stably.

The utility model relates to motor test frock technical field, concretely is a kind of warm air motor whole machine test clamping frock, two clamping assemblies are symmetrically arranged in the both sides of clamping table, the clamping assembly includes empty slot, locating seat and advancing assembly, the advancing assembly is fixed in the both sides of clamping table, the locating seat is located in the inside empty slot and is slidably connected with empty slot, the upper end of locating seat is equipped with guide rail, compared with the frequent replacement of traditional frock clamp or manual adjustment clamping position, this clamping frock can realize the automation operation of height adjustment, preliminary clamping and self-adapting clamping by operating controller. From placing motor to complete clamping, the whole process time consumption is greatly shortened, it is convenient to operate, and it is shorter in time.

The application discloses a kind of verification motor endurance test method and related equipment, it is related to vehicle motor test field, mainly to solve the lack of a more simple and real verification motor endurance method problem.The method comprises: based on the kind of target electric drive determines the high-low temperature drive endurance test parameter of target electric drive;Based on the high-low temperature drive endurance test parameter of the target electric drive determines the self-heating endurance test parameter in the self-heating process of target motor, wherein the self-heating process is the process that target motor is battery self-heating;In the process of carrying out high-low temperature drive endurance test to the target electric drive by the high-low temperature drive endurance test parameter, based on the self-heating endurance test parameter simultaneously carries out self-heating endurance test to the target motor.The application is used for verifying the test process of motor endurance.

The utility model discloses a motor test fixture and a test device for an automobile seat driver, which are characterized in that the motor test fixture comprises a cylinder, a connecting plate, a positioning member and two conducting rods, the top of the connecting plate is connected with an output shaft at the bottom of the cylinder, the positioning member is installed on the connecting plate, and the two conducting rods are connected with the connecting plate. The two conducting rods are mounted on the positioning piece; a wire connector is arranged at the top of each conducting rod; the positioning piece is installed on the front side wall of the connecting plate, two through holes are formed in the positioning piece at intervals, the middle of each conducting rod is movably inserted into the corresponding through hole, and the top and the bottom of each conducting rod are arranged above and below the positioning piece respectively; an upper annular head and a lower annular head are respectively arranged on the conducting rod above and below the positioning piece, a spring is sleeved outside the conducting rod, and two ends of the spring are respectively propped against the top surface of the lower annular head and the bottom surface of the positioning piece. According to the utility model, the detection efficiency is improved.

The invention discloses a motor testing system based on a sliding frame and a guide plate, and relates to the field of motor testing. The test rack module is welded by a Q235B steel plate and is fixed by an expansion bolt; the sliding frame module is composed of a sliding base, a connecting beam and a supporting platform and is connected with a spring for buffering. The guide plate module comprises symmetrical guide plates which are finely adjusted through a sliding block and an adjusting assembly. The motor fixing module comprises an L-shaped baffle, a spring and a clamping bolt, and a built-in pressure sensor is used for measuring clamping force; an output shaft of the test driving module is connected with a torque sensor and a tested motor, and is provided with a controller and an acquisition module; the data acquisition module synchronously acquires multiple parameters, and a report is generated through a touch screen display, storage and software setting process; the buffering and damping module reduces noise and vibration and corrects the level through a gasket, a foot pad and a sizing block, and stable operation of the device is guaranteed. The method is fast adaptive to multi-model motor testing, optimizes the traditional technology, improves the detection efficiency and accuracy, guarantees the testing stability and reliability, and meets the batch testing requirements.

This invention relates to a dustproof motor and a testing device, and relates to the technical field of motors. The dustproof motor includes dustproof components, and the dustproof motor testing device includes a stationary test platform. The test platform is equipped with a limiter for limiting the movement of the dustproof motor, and a tester for performing no-load testing on the dustproof motor is also provided on the test platform. Both the tester and the limiter are located along the length of the test platform. This invention can solve the following problems existing in the prior art: First, the existing dustproof motors have poor dustproof performance; second, the existing technology has poor temperature detection performance for motors, and the temperature measuring device is prone to detachment due to vibration during motor operation; in addition, existing technologies only perform no-load or load tests when testing dustproof motors, and their unique dustproof performance cannot be effectively and rigorously tested, therefore their dustproof performance cannot be guaranteed.

The utility model discloses a C-EPS power-assisted motor durability test tool, which belongs to the technical field of motor durability test, and comprises a base station, a jolting and vibrating mechanism is arranged in the base station and at the upper end of the base station, the jolting and vibrating mechanism comprises a movable assembly and a driving assembly, and a test table top is arranged at the upper end of the movable assembly; a clamping mechanism is mounted on the test table board; the profiling groove block is fixedly mounted at the upper end of the test table board; the test motor is installed in the profiling groove block. A cantilever counterweight test mechanism is mounted on the front side of the upper end of the test table board; the cantilever counterweight testing mechanism is provided with a counterweight block. And a self-locking counterweight structure is arranged in the counterweight block. Through the above mode, the balancing weight is more convenient and faster to install, the extra workload and installation time are reduced, and the efficiency of the detection device is improved; and bumpy road conditions encountered by the test motor in daily use can be simulated, so that the test comprehensiveness of the test motor is improved.

The utility model belongs to the technical field of inspection of control systems or components thereof, and relates to a motor test bench, which comprises a mounting table, and further comprises a permanent magnet synchronous motor, a torque sensor, a magnetic powder brake and a magnetic powder brake regulator which are mounted on the mounting table, the output end of the permanent magnet synchronous motor is detachably connected with the input end of the torque sensor through a first coupler, the output end of the torque sensor is detachably connected with the input end of the magnetic powder brake through a second coupler, and baffles are detachably installed on the outer side of the first coupler and the outer side of the second coupler. The motor test bench can rapidly test the torque, the rotating speed, the power and other performances of the permanent magnet synchronous motor, and the baffle plates are arranged on the outer sides of the first coupling and the second coupling, so that a protection effect can be achieved, and the couplings are prevented from loosening, rotating, separating and hurting people.

A robot motor testing device belongs to the technical field of motor testing. The device comprises a test box, the interior of the test box is rotatably connected with a first reciprocating rotating shaft in a penetrating manner, the top of the first reciprocating rotating shaft is rotatably connected with a connecting disc through a universal ball, the top of the connecting disc is fixedly connected with a test platform, and an installation assembly and a torque sensor are fixedly installed above the test platform. A load variable resistance mechanism is arranged above the test platform, a shaking test mechanism is arranged on the outer wall of the first reciprocating rotating shaft, an emergency simulation mechanism is arranged on the outer wall of the first reciprocating rotating shaft, the load variable resistance mechanism comprises a reciprocating ring arranged on the outer wall of the second reciprocating rotating shaft, and the reciprocating ring is controlled to reciprocate along the outer wall of the second reciprocating rotating shaft; the shaking test mechanism comprises an abutting rod arranged below the test platform, so that the test motor continuously shakes in the test process, and the state of the actual application scene of the test motor is simulated.

The utility model relates to the field of electromechanical technology, in particular to a small motor load test bench, which comprises a mounting base, a clamping mechanism and a lifting mechanism, the mounting base is arranged at the bottom of the test bench, a mounting hole is formed in the mounting base, and the clamping mechanism is mounted on the mounting base through the mounting hole; the clamping mechanism comprises a left clamping block and a right clamping block. The opposite faces of the left clamping block and the right clamping block are provided with semicircular grooves so as to stably clamp a motor to be tested. The lifting mechanism comprises a steering shaft connected with an output shaft of the motor in an inserted mode, the end, away from the motor, of the steering shaft is connected with a lead screw, the lead screw is connected with a moving block, and the top end of the moving block is fixedly connected with a containing base for containing the balancing weight. The device can be adapted to various motors of different models, so that one test bench can meet the test requirements of more types of motors, and the utilization rate and the practicability of the test bench are improved.

The embodiment of the invention provides a large ventilator motor test device and a use method thereof, the device comprises a plurality of supports, the supports are arranged on the peripheral side of a ventilator motor in an annular array, the supports are L-shaped, vertical rods of the supports are detachably fixed on the ventilator motor through fixing screws and fixing nuts, and the vertical rods of the supports are fixed on the ventilator motor through the fixing screws and the fixing nuts. The transverse rods are used as supporting parts, the bottom ends of the transverse rods of the multiple supports are located on the same plane, and the transverse rods of the multiple supports are all arranged on the side away from a ventilator motor. According to the embodiment of the invention, the large ventilator motor can be longitudinally placed according to the actual installation during shipment, the direction of a rotating shaft of the motor is ensured to be consistent with the actual working direction during a workshop test, and potential quality hazards and problems of the motor can be more effectively exposed; moreover, the device is simple in structure and convenient to disassemble and assemble, fixation can be completed without additionally adjusting the position of the motor, and the efficiency of a no-load or on-load test of the motor is improved.

The utility model belongs to the technical field of test equipment, and discloses a heat exchange device for motor test, which comprises a liquid supplementing assembly, a liquid injection assembly, a cooling circulation assembly, a heat dissipation circulation assembly and the like. The liquid supplementing assembly comprises a liquid storage container and an injection mechanism which are communicated through a pipeline, and the liquid storage container is used for storing cooling liquid. The liquid injection assembly comprises a liquid injection container, a liquid level detection part arranged in the liquid injection container, a liquid injection valve and a heat exchange part, the liquid injection container is arranged above the heat exchange part, and the heat exchange part is provided with a first cavity and a second cavity. The injection mechanism is communicated with the liquid injection container, and the liquid injection container, the liquid injection valve and the first cavity are communicated through a liquid injection pipeline. The cooling circulation assembly is connected between the liquid outlet of the first cavity and the liquid inlet of the second cavity and communicates with the motor. The heat dissipation circulation assembly is connected between the liquid outlet of the second cavity and the liquid inlet of the first cavity. The injection mechanism and the liquid level detection piece are both in communication connection with the control module. The heat exchange device can supplement cooling liquid in time, and the accuracy of a motor detection result is ensured.

The invention discloses a multi-model driving motor adaptive test system, and relates to the field of driving motor test. The rack bearing module is welded by low-alloy steel plates, the bottom is fixed, and vertical guide rails and horizontal sliding rails are arranged; the self-adaptive positioning module comprises a three-dimensional adjusting mechanism, so that accurate positioning is realized; the intelligent clamping module adopts a circumferential clamping assembly and an axial jacking device, and a clamping motor is stably clamped through an arc-shaped clamping jaw and the jacking device; the power test module collects parameters such as torque and rotating speed, and supports switching of vector control and torque control modes; the automatic calibration module is provided with a laser tracker and a standard torque meter, so that the measurement precision is ensured; the data processing module adopts an industrial computer to analyze data and generate a chart; and the safety protection module is provided with a three-level protection mechanism to guarantee the test safety. The method is fast adaptive to multi-model motor testing, improves the efficiency and precision, guarantees the safety, is reliable in data, is suitable for various testing scenes, and optimizes the traditional testing technology.

The invention relates to the technical field of monitoring of pump systems. The invention discloses a wireless internet-of-things information acquisition system for a tower type pumping unit. The wireless internet-of-things information acquisition system comprises a motor test module, a transmission shaft test module, a speed reduction roller test module, a guide bracket test module and a wireless signal acquisition device. According to the invention, a complete sensing network covering a power source-transmission chain-bearing structure is established by integrating four testing modules including a motor, a transmission shaft, a speed reduction roller and a guide bracket; according to the structural characteristics of the tower type pumping unit, strain gauges are deployed in a high-stress area at the root of a guide support to monitor micro-strain changes, and an eddy current sensor and a dynamic torque sensor are adopted at key nodes of a transmission shaft to cooperatively monitor low-frequency bending and high-frequency torsional vibration coupling characteristics; a performance degradation model is conveniently established through long-term data accumulation, and transformation from post maintenance to predictive maintenance is realized in combination with a threshold early warning and trend prediction algorithm.

The utility model relates to the technical field of motor manufacturing and motor testing, in particular to a reduction gearbox torque testing device which comprises a testing mechanism, a standard mechanism, a station standard mechanism, a control cabinet and a fence. The station standard mechanism is directly arranged on the ground and comprises a welding base, a line body, a small counter-force lifting mechanism, a tray, a workpiece online detector and a stand column. The line body is erected on the welding base directly through the supporting legs, and the small counter-force lifting mechanism is directly installed on the welding base through the lifting base and arranged in the line body. The control cabinet is installed on the welding base, the fence wraps the station standard mechanism, the standard mechanism is directly installed on a stand column of the station standard mechanism, and the testing mechanism is installed on a linear guide rail of the standard mechanism through a welding connecting plate. According to the utility model, through mutual cooperation of internal parts of the small counterforce lifting mechanism, the problem of invalid test caused by position offset in the test process can be prevented.

The utility model relates to motor test technical field especially relates to a kind of motor aging test device, it includes workbench, the workbench is provided with aging test part, the conveyor belt for conveying motor to different aging test part and carries out aging test, power mechanism for driving conveyor belt movement and the test seat for being fixed on conveyor belt for fixed motor and the electrical connection of motor and aging test part, the aging test part includes the first aging test part for feeding and discharging, the second aging test part for carrying out electric leakage detection, the third aging test part for carrying out low pressure aging and the fourth aging test part for carrying out high pressure aging.This aging test device can not only carry out electric leakage detection, but also can carry out high-low voltage aging.

The utility model discloses a motor test load simulation device which comprises a supporting mechanism, a load tester and a motor body, the upper end of the supporting mechanism is provided with a heat preservation mechanism, the lower end of the supporting mechanism is provided with a temperature adjusting mechanism matched with the heat preservation mechanism, and the supporting mechanism comprises a detection table and a motor fixing frame. The motor body is fixedly installed on the motor fixing frame, an air inlet and an air outlet are formed in the position, close to the motor fixing frame, of the upper end face of the detection table, the heat preservation mechanism comprises a heat preservation cover and fixing bolts, and the heat preservation cover is arranged at the upper end of the motor body in a sleeving mode and rotationally connected with the detection table and fixed to the motor fixing frame through the fixing bolts. The temperature adjusting mechanism comprises a sealing box, an electric heating wire fan and a refrigerator. The motor test load simulation device has the advantages of rapid heating and cooling, uniform and stable temperature and convenient operation, and solves the problem that the motor test load simulation device cannot simulate an extreme temperature environment.

The invention discloses an aero-engine pipeline vibration testing device, method and system and a readable storage medium, relates to the field of aero-engine testing, and is used for accurately evaluating the performance of an aero-engine pipeline. The testing device comprises a casing simulation piece, a pipeline testing piece, a mounting bracket, a vibration table and a pressure pulsation testing platform. The size of the structure of the cartridge receiver simulation member is the same as the size of the overall or local structure of the cartridge receiver where the aero-engine pipeline to be detected is installed. The pipeline test piece is mounted on the casing simulation piece; and the pipeline test piece has the same pipeline structure as the aero-engine to be detected. And the mounting bracket is mounted at the bottom of the cartridge receiver simulation piece. The cartridge receiver simulation piece is mounted on the vibration table through the mounting bracket; the vibration table provides vibration excitation for the pipeline test piece. The inlet of the pipeline test piece is communicated with the outlet of the pressure pulsation test platform, and the outlet is communicated with the reflux inlet of the pressure pulsation test platform; and the pressure pulsation test platform provides pressure pulsation excitation for the pipeline test piece.

The utility model provides a locked-rotor device applied to a new energy automobile motor test. The locked-rotor device comprises a locked-rotor device shell, a locking rotor and a hydraulic driving assembly, the locking rotor is arranged on the locked-rotor device shell, the locked-rotor device shell is used for being fixed on a dynamometer shell, and the locking rotor is used for being connected with a dynamometer output shaft; a locking block is arranged on the periphery of the locking rotor; a hydraulic sliding body is arranged in the locked-rotor device shell, and the hydraulic driving assembly can drive the hydraulic sliding body to move in the locked-rotor device shell, so that the hydraulic sliding body extrudes the locking block; before the locking block is extruded, the locking rotor can rotate on the locked-rotor device shell; when the locking block is extruded, the locking block generates radial deformation, and radial locking force is generated on the locking rotor. Hydraulic pressure is adopted as power to lock the motor shaft, a hydraulic system can provide large pressure, and large locking torque is achieved with the small size.

The embodiment of the invention provides a motor test system, a motor test method, electronic equipment and a storage medium, and the system comprises a load simulation module which is used for providing a simulated operation load for a to-be-tested motor, and transmitting the load information of the operation load to a main control module; the main control module is used for determining multiple groups of driving parameters according to the load information and sending the multiple groups of driving parameters to the driver; operation state data corresponding to the multiple sets of driving parameters are received, and target driving parameters, corresponding to the load information, of the to-be-tested motor are determined according to the operation state data; the driver is used for driving the to-be-tested motor to operate according to the multiple groups of driving parameters; the sensor module is used for collecting operation state data, corresponding to the multiple sets of driving parameters, of the to-be-tested motor and sending the operation state data to the main control module. Therefore, manual recording and sorting are not needed in the testing process, the labor cost is saved, and meanwhile, the testing result is more accurate.

The utility model relates to the technical field of motor testing, in particular to a tension testing mechanism which comprises an outer frame, an inner frame, a first sliding plate and a weight sensor, the first sliding plate is vertically arranged in the outer frame in a sliding mode, and the weight sensor is located below the first sliding plate. The inner frame is vertically arranged on the outer frame in a sliding mode, the bottom end of the inner frame extends downwards into the outer frame, and the bottom end of the inner frame penetrates through the first sliding plate and is connected with the weight sensor; the testing electric cylinder is connected to the top of the outer frame, a first movable rod of the testing electric cylinder is connected with the first sliding plate, and a spring is arranged on the first sliding plate and used for pushing the top end of the inner frame. The motor tension tester is simple to operate and convenient to test, only a to-be-tested motor needs to be assembled on the test electric cylinder during tension test, additional assembly procedures are not needed, and meanwhile, a combined structure of the inner frame and the outer frame is adopted, so that the motor tension tester is small in overall size, light in weight, convenient to carry and convenient to transfer and use back and forth among different working sites.

The utility model discloses a kind of no foot motor's no-load test support, comprising: support frame and limiting fixing part, the support frame is provided with the limiting recess groove adapted to the flange plate of a variety of different no foot motor, the first through-hole allowing the output end of the no foot motor to pass through is provided on the support frame;The limiting fixing part is at least two interval settings, respectively installed in the top of the support frame, the flange plate of the no foot motor is fixed in limiting recess groove by pressing tightly. Further, it is convenient to install, by limiting the flange plate of no foot motor, the stability when no foot motor test is improved, test process is more safe and reliable, the vibration amplitude of no foot motor is reduced, the efficiency of test and the accuracy of test data are improved, labor intensity and the cost of artificial are reduced.

The application provides a kind of driving motor test board, including: shell, rack, motor controller suitable for connecting with motor to be measured, display screen and computer host;Cavity is provided in shell, rack is arranged in the cavity of shell, and is suitable for supporting shell;First mounting plate is provided in the cavity of shell, and first mounting plate and the bottom plate of shell are arranged parallel to each other;Computer host is arranged on first mounting plate, and motor controller is arranged on bottom plate;Two terminal blocks are provided on the side wall of shell, one end of two terminal blocks is connected with three-phase aviation connection plug and rotary variable aviation connection plug of motor controller respectively, and the other end of two terminal blocks is suitable for electrically connecting with motor to be measured.The application only needs to be connected with motor to be measured through two terminal blocks when testing motor to be measured, without complicated preparation work, and the efficiency of motor test can be effectively improved.

The utility model belongs to test tool technical field discloses a general tool for wheel hub motor test, including the inner spline pipe for and wheel hub motor's output end connection, the adapter holder for and wheel hub motor's fixed end connection, the seat board for and test bench machine body connection, the inner spline pipe is connected with outer spline shaft, and outer spline shaft is used for and test bench's power test mouth connection, the adapter holder is connected outer protective housing away from wheel hub motor one end, the seat board connects a plurality of pin for positioning, and outer protective housing and pin cooperate and position, and outer protective housing is connected with seat board. The utility model possesses general property, can be adapted to different models wheel hub motor, satisfies the test demand of different wheel hub motor, has improved test efficiency, and has reduced test cost, has shortened test development period.

The utility model discloses a gear motor production line load test and aging test device easy and convenient to operate, which relates to the motor test technology and comprises a support, a bedplate arranged on the support, a load motor positioning component and a motor positioning component to be tested, and the load motor positioning component and the motor positioning component to be tested are arranged on the bedplate and arranged side by side in the transverse direction. The load motor positioning component is provided with a row of load motor positioning stations in the longitudinal direction, the to-be-tested motor positioning component is provided with a row of to-be-tested motor positioning stations in the longitudinal direction, the to-be-tested motor positioning stations and the load motor positioning stations are arranged in a one-to-one correspondence mode, and the load motor positioning stations are used for positioning load motors. The to-be-tested motor positioning station is used for positioning a to-be-tested motor, a coupling is arranged between an output shaft of the load motor and an output shaft of the to-be-tested motor, and the load motor provides a load for the to-be-tested motor when the to-be-tested motor is tested. And a plurality of motors to be tested can be tested together, so that the test cost is reduced.

The invention discloses an electromechanical hybrid energy feedback motor test system, which comprises a shafting device, an electrical device and a measurement system, and is characterized in that the shafting device comprises an elastic coupling, a gearbox, an asynchronous generator and a hydraulic dynamometer, and the electrical device comprises an inlet wire transformer, a rectification power supply, an asynchronous generator and a four-quadrant frequency converter; the measurement system comprises voltage / current sensors arranged on the tested frequency converter and the four-quadrant frequency converter, and a field acquisition module connected with the voltage / current sensors, the tested frequency converter and the motor, and the four-quadrant frequency converter and the asynchronous generator. One part of mechanical energy output by the motor is consumed into heat energy by the hydraulic dynamometer, and the other part of the mechanical energy is converted into electric energy by the generator and fed back to the direct current bus through the four-quadrant frequency converter, so that a load mode of combining energy consumption and feedback is realized.

A vibratory DNA is defined which uniquely characterizes the vibratory state of each integrally bladed disk (IBD) of a fleet and devolves the complex vibrational responses of the IBDs into simple metadata which can be stored in a database and manipulated for various fleet health management purposes. Vibratory DNA can be developed from test apparatus vibration data and can be used to assess the acceptability of a manufacturing or repair process. Changes in vibratory DNA resulting from operation of an IBD in a rotary machine are indicative of operationally induced wear or cracking and can be useful when determining a root cause of failure of an IBD. Vibratory DNA may be used with a reduced order model to perform a virtual engine test of an IBD.