Cantilever beam bending deformation real-time monitoring method

Abstract

The invention discloses a cantilever beam bending deformation real-time monitoring method. A cantilever beam bending deformation real-time monitoring device is established and comprises an embedded end and a computer end. The embedded end is fixed on a cantilever beam to be measured and is used for monitoring deformation of the cantilever beam to be measured in real time; the computer end is usedfor remotely monitoring real-time data, providing a data interface of software, calculating and displaying a real-time angle value, a maximum deflection position, a maximum deflection value, a stresspoint, a stress size, a real-time model animation for simulating stress deformation of the beam and the like; the method comprises filtering processing in three stages, namely denoising processing, zero point processing and indexing processing on acquired angle data; a deformation detection mathematical model is established; the structural mechanical analysis model of load-bearing mechanical equipment such as a hoisting arm and a crane arm is established, and the method can be also used for real-time monitoring of stress bending deformation of a solid beam arm.

Description

Technical field [0001] The invention relates to the field of deformation monitoring, in particular to a real-time monitoring method for the bending deformation of a cantilever beam. Background technique [0002] A cantilever beam is a beam with a fixed support that does not produce axial or vertical displacement and rotation at one end, and a free end at the other end. The pressure on the beam arm causes the beam to bend and deform. For example, crane arms, crane arms, etc. can all be simplified into cantilever beam models. This type of beam arm, as an important load-bearing mechanical equipment, is inevitable to deform due to force during work. Excessive deformation will not only damage the beam arm, but also cause major production accidents and cause unpredictable personnel and property. loss. Therefore, it is very necessary to provide a real-time detection of the force and deformation of the cantilever beam arm. [0003] The existing measurement technologies mainly include: s...

AI Technical Summary

Problems solved by technology

Among them, the strain gauge measurement technology is relatively mature. This technology has high precision and long life. However, as an implanted measurement method, it cannot judge the force and cannot measure the bending displacement. At the same time, high cost and poor flexibility are the shortcomings of this technology.

Computer vision measurement is a new technology in recent years. This technology has high requirements for the performance of computer vision observation and the installation and debugging of image acquisition equipment, and it is easy to be affected by visual occlusion.

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