A high-temperature biaxial strength tester for a CMC turbine vane includes a test stand, a thermal insulation box, a vane fixture, a biaxial loading device, thermocouples, a multi-channel thermometer, quartz lamps, a digital image correlation (DIC) system, and a cooling circulation system. The biaxial loading device includes two loading mechanisms arranged at 90° to each other. Each of the two loading mechanisms includes an electric cylinder and a ceramic push rod. One end of the ceramic push rod is connected to the electric cylinder, and the other end of the ceramic push rod extends into the thermal insulation box to contact an outer platform of the CMC turbine vane. The electric cylinder is provided with a load-displacement sensor. The thermocouples are arranged on the thermal insulation box. The quartz lamps are arranged inside the thermal insulation box. The multi-channel thermometer is connected to the thermocouples.

An integrated rapid infrastructure monitoring system for identifying defects in an underlying surface, comprising: at least one actuator; and, at least one impactor operatively connected to the actuator, wherein the actuator is configured to transition the integrated rapid infrastructure monitoring system from a first configuration with at least one of a motive force and an impact bounce force of the impactor, where the impactor is located on a first side of the integrated rapid infrastructure monitoring system, to a second configuration, where the impactor is located on a second side of the integrated rapid infrastructure monitoring system.

Systems and methods for automated MIMO force-response characterization of a device/structure-under-test. A SIMO exciter router is operated to selectively couple an excitation signal input to an exciter device while the sensor data indicative of a sensed response to the imparted excitation force is collected from a plurality of response sensors. The SIMO exciter router operates to collect sensor data for each of a plurality of different exciter-sensor combinations (i.e., sensor data is collected from each individual response sensor while the excitation force is applied by each individual exciter device). The sensor data is collected by a data acquisition system with a plurality of signal input channels each coupled to a different response sensor or a sensor router is used to selectively couple each individual sensor output to a shared signal input channel of the data acquisition system.

The present invention relates to a method of fatigue testing an elongate specimen, such as a wind turbine blade, comprising: calculating a service life damage sum at one or more locations on at least one respective first section of an elongate specimen, responsive to at least one strain time history associated with the specimen; determining a predicted test damage sum at the one or more locations for each of a plurality of predetermined test blocks separately applicable to the specimen; and selecting at least one test block associated with the plurality of predetermined test blocks based on a comparison of the predicted test damage sum with the service life damage sum for each of the one or more locations, wherein the selected at least one test block is applicable to the specimen to cause a test damage sum at each of the one or more locations that at least substantially matches the service life damage sum at each of the one or more locations.

A system includes an electromagnetic inspection device, a processing device, and a memory device. The electromagnetic inspection device includes at least one transmitter that can transmit an electromagnetic signal toward a wall of a flexible pipe. The electromagnetic inspection device also includes at least one receiver that can receive at least one scattered electromagnetic signal from the wall of the flexible pipe. The memory device includes instructions executable by the processing device to cause the processing device to transmit an electromagnetic signal using the transmitter, to receive the scattered electromagnetic signal using the receiver, and to identify at least one anomaly in the wall of the flexible pipe using the scattered electromagnetic signal.

An information processing apparatus acquires first defect data and second defect data generated on a basis of images imaged of an identical target, obtains, on a basis of the first defect data and the second defect data, a common portion that is common between the first defect data and the second defect data and a different portion that exists in either the first defect data or the second defect data and calculate position data corresponding a boundary between the common portion and the different portion, and generates state change data indicating a change in a defect included in the common portion and the different portion using the position data.

A coupon suitable for peeling tests, derived from a vane and comprising: (i) a portion of blade that comprises a frontside surface, a backside surface and a leading edge and/or trailing edge and (ii) a vane reinforcement that covers and is glued to at least a part of the frontside surface, a part of the backside surface and which extends beyond the leading and/or trailing edge. The reinforcement is split over the entire length of the leading edge and/or trailing edge such that the reinforcement is separated into two plates separate from one another and facing each other on either side of the slit beyond the leading and/or trailing edge. Furthermore, at least one of the plates furthermore comprises, beyond the leading and/or trailing edge, fastening means providing a hold to this same plate.

A movable system for automatically monitoring the correlated wind and temperature filed of a bridge, including a bridge monitoring subsystem, a cloud server, and a client. The system monitors the meteorological parameters of a bridge surface and a temperature of a bridge structure, performs data analysis and processing on a cloud server, and performs visual data interaction by using a client. A bridge surface-specific meteorological parameter monitoring module is movable, such that the location of the sensor for meteorological data monitoring can be adjusted at any time to monitor an entire bridge deck in a time-sharing manner. A lower cantilever structure has an adjustable height, such that the sensor for meteorological data monitoring can track a height of a boundary layer of the bridge surface. A bridge structure-specific temperature monitoring module adopts distributed patch-type temperature sensors, which can detect the temperature of the bridge structure in all directions.

The invention relates to a load simulation test stand having at least one hydraulic test cylinder (1) which comprises at least one cylinder chamber (1a, 1b) which can be charged with hydraulic fluid, preferably two cylinder chambers (1a, 1b) which can be charged with hydraulic fluid and which act counter to one another, in the case of which load simulation test stand the at least one test cylinder (1), in particular each of multiple provided test cylinders (1), comprises at least one capacity element (5, 6, 7), preferably a capacity element (5, 6, 7) which is exchangeable or which is adjustable in terms of hydraulic capacity, by means of which the hydraulic overall capacity of the at least one cylinder chamber (1a, 1b) can be adjusted. The invention furthermore relates to a method for operating a load simulation test stand having at least one test cylinder (1), wherein the at least one test cylinder (1) is connected to a load which is to be moved, and wherein the load is moved by means of a pressure control system (4) by temporally changeable control of the fluid pressure in the at least one cylinder chamber (1a, 1b) of the at least one test cylinder (1), and wherein, for the load which is to be moved by means of the at least one test cylinder (1), in a manner dependent on the pressure control bandwidth of the pressure control system (4), the natural frequency of the unit composed of the at least one test cylinder (1) and load is set to a value smaller than the pressure control bandwidth by changing the capacity of the capacity element (5, 6, 7), preferably adjusting the capacity of the adjustable capacity element (5, 6, 7).

A system for nondestructive evaluation of railroad rails, includes a carriage including a plurality of wheels movably supporting the carriage on the rails, a source of vibration mounted on the carriage and connected to transmit vibrations of a preselected frequency to test regions on the rails through the wheels to cause an increase in temperature of the rails at locations of flaws in the test regions, an infrared detector for recording thermal images of the test regions to detect the increase in temperature of the location of the flaws, a controller connected to actuate the infrared detector to record the thermal images of the vibrations impacting the test regions, and store the thermal images recorded by the infrared detector.