6 results about "Torsional angle" patented technology

This invention discloses a torsion angle measuring device for torsion testing, comprising a specimen and an encoder. The encoder's rotating shaft is coaxially connected to the specimen via a connecting frame, enabling the rotating shaft to rotate coaxially with the specimen. The encoder is configured to acquire the torsion angle signal of the specimen through the rotation of the rotating shaft. This invention, by directly connecting the encoder's rotating shaft coaxially with the specimen, effectively eliminates errors in traditional indirect measurements, facilitating in-situ high-precision measurement of the torsion angle. This direct connection significantly improves the measurement sensitivity for small torsional deformations, accurately capturing minute angular changes in the specimen as it approaches its fatigue limit. Simultaneously, it simplifies the measurement process, avoids signal attenuation and interference during transmission, and ensures that the obtained torsion angle data more accurately reflects the initiation and development of cracks within the specimen.

The invention discloses a torsion self-resetting damper and a mounting method thereof, the torsion self-resetting damper comprises a shell, the shell is provided with an external connecting plate, the external connecting plate is sequentially provided with a connecting part, a torsion energy dissipation part and a self-resetting part along the length direction, the connecting part is connected with a building structural member, and the self-resetting part is connected with the torsion energy dissipation part. Racks are arranged on the upper face or / and the lower face of the torsion energy dissipation part, and reset curved faces are arranged on the upper face or / and the lower face of the self-reset part. A torsion energy consumption device matched with the torsion energy consumption part and a self-resetting device matched with the resetting curved surface are mounted in the shell; according to the torsion damper, the torsion angle of the bar is amplified through the gear, the torsion energy dissipation device and the self-resetting device are arranged, so that the energy dissipation capacity of the torsion bar can be fully exerted under small displacement of the torsion damper, and meanwhile residual deformation of the structure is reduced through the self-resetting device.

The invention discloses a transmission system performance test method, a computer readable storage medium and a test device. Comprising the following steps: controlling a driving piece to perform linear loading at a first loading torque and a first loading slope; a torsion angle < {in1} of the input shaft, a torsion angle < {out1} of the first output shaft and a torsion angle < {out2} of the second output shaft are obtained, and a relative gap value at the moment is calculated; controlling the driving piece to perform linear loading at a second loading torque and a second loading slope; a torsion angle < {in2} of the input shaft, a torsion angle < {out3} of the first output shaft and a torsion angle < {out4} of the second output shaft are obtained, and a relative gap value at the moment is calculated; and calculating the transmission clearance of the to-be-measured transmission system. Therefore, according to the performance test method provided by the invention, the rotation torque and the torsion angle are accurately measured, and the transmission gap of the to-be-tested transmission system is calculated through the two relative gap values, so that the measurement accuracy can be improved, the manual dependence is low, the automation degree is high, and the operation efficiency is high.

A clamp for measuring the torsion angle of a deformed steel bar longitudinal rib comprises an inspection rack and a cylinder support, the cylinder support is installed on the inspection rack, a cylinder is installed above one side of the cylinder support, a compression spring is arranged at the front end of a cylinder piston head, a connecting steel plate is welded to the tail end of the compression spring, one side of the connecting steel plate is connected with an upper clamping plate, and the other side of the connecting steel plate is connected with a lower clamping plate. The upper clamping plate is provided with an upper groove, the inspection rack is provided with a lower clamping plate, and the lower clamping plate is provided with a lower groove. The clamp has the advantages that the clamp is installed at the head end of an inspection rack, the head end of the deformed steel bar is fixed in the horizontal direction of a longitudinal rib, and a measurer can independently measure the torsion angle at the tail end of the deformed steel bar, so that single-person operation is achieved, more convenience is achieved, deviation caused by manual fixing of the head end of the deformed steel bar can be eliminated at the same time, and the measuring efficiency is improved. And economy and reliability are realized. The clamp can be suitable for clamping deformed steel bars of different specifications by replacing the upper clamping plate and the lower clamping plate, and detection efficiency and accuracy can be effectively improved.

The invention discloses a torsion bar detection tool and automatic detection equipment. The tool comprises a fixing assembly and a torsion detection assembly. According to the fixing assembly, two fixing blocks with half tooth grooves are folded to form a first tooth groove meshed with a first tooth part of the torsion bar, and reliable fixing is achieved. The torsion detection assembly comprises a torsion block which is rotatably assembled on the installation seat, and the torsion block is provided with a second tooth groove which can be installed in the second tooth portion of the torsion bar in the radial direction and a lever arm which extends in the radial direction. The mounting seat is provided with a detection module and a driving module which act on the two ends of the lever arm respectively. The driving module drives the lever arm to drive the torsion block to rotate, and the detection module accurately obtains the torsion angle by measuring the displacement of the lever arm and based on lever ratio conversion. The tool is fast in clamping, reliable in positioning and high in detection precision. Corresponding automatic equipment is integrated with the tool, and automation of the whole process of automatic feeding, correction, function detection, appearance reinspection and intelligent sorting of the torsion bar is achieved.

The present application relates to a kind of cantilever end torsion angle prediction method, control method, system and medium, it is related to end torsion angle prediction and control technical field.Prediction method, based on the stiffness of the obtained bridge, section inertia moment, section shear modulus, section torsion constant and cantilever curved bridge structure dead weight, the undetermined coefficient of the trigonometric series of cantilever end deflection and torsion angle is calculated, and further the cantilever end torsion angle and deflection are calculated.Compared with prior art, the relationship between structure parameters and cantilever end rotation angle can be directly reflected, so that parameter sensitivity analysis and engineering optimization design can be facilitated, and the applicability of the project is improved.