3 results about "Control loading system" patented technology

The invention relates to the technical field of power equipment testing devices, in particular to a direct-current three-post insulator strength testing device, which comprises a loading system, a clamping and fixing system, a measurement feedback system and a control system, and is characterized in that the control system is in communication connection with the loading system and the measurement feedback system and is used for controlling a load applying process of the loading system; the loading system, the clamping and fixing system and the measurement feedback system are arranged in a modular combination manner and are used for carrying out five different forms of mechanical strength tests on the same three-post insulator test piece; according to the invention, five completely different mechanical test functions of axial, radial, overall bending moment, single-column-leg bending moment and single-column-leg tension are integrated, and the effect of comprehensively, accurately and efficiently verifying the mechanical strength of the three-column insulator is achieved through modular combination, accurate benchmarking and intelligent control.

This application relates to the technical field of structural dynamics testing equipment, and discloses a device and method for combined control of magnetorheological fluid and metal spring sheet for drop hammer impact testing. The device includes: a test bench comprising a rigid base, a vertical support column, and a horizontal fixed beam; a drop hammer system for lifting and releasing the drop hammer body; a combined control loading system for providing stiffness support; a uniformly distributed load transfer system for receiving the impact load and converting it into a line load for transfer to the beam / column component under test; a parameter monitoring system for data acquisition; and a control system for controlling the release of the drop hammer body and adjusting the current of the excitation coil. This invention, by employing the combination of magnetorheological fluid and metal spring sheet, and utilizing the synergistic effect of the continuously adjustable damping of the magnetorheological fluid and the stiffness support of the metal spring sheet, can achieve impact pulse trimming, thereby avoiding the shortcomings of traditional airbag and rubber loading methods, such as narrow control range and low precision.

The invention discloses a portable roadbed multi-performance intelligent in-situ test device and test method, the test device comprises a loading system, a data acquisition system, a control system and a data processing system, the loading system comprises a dynamic loading module and a static loading module; the data acquisition system comprises a displacement sensor and a load sensor; the control system is used for reading a feedback value of the data acquisition system, implementing an instruction, controlling the loading system and completing load application in the whole test process; the data processing system is used for receiving and processing data acquired by the data acquisition system; the testing method comprises a roadbed modulus testing method, a roadbed permanent deformation testing method, a compactness testing method and a moisture content testing method. According to the method, mechanical testing and state testing are integrated, comprehensive integration of roadbed performance testing is achieved, and the calculation efficiency and accuracy are improved.