Upgrading the Strain-Gauge Axle for Load Limiters
Abstract
The article presents an improvement in the design of a strain gauge axle for load limiters. It analyzes a serial sensor with strain gauges mounted on the cylindrical surface of a through hole, which causes their pre-deformation and reduces sensitivity. A new design is proposed, with strain gauges placed on a flat wall between two blind holes. A finite element analysis in the ANSYS software package calculated the stress-strain state, confirming the possibility of a significant increase in working stresses and, consequently, the sensor's sensitivity by changing the thickness of the flat wall without compromising the overall strength of the axle. A prototype was manufactured and field tests were conducted. The experimental results showed that the new design provides a sensitivity 4.3 times higher than that of the serial sample. This allows for a significant increase in measurement accuracy and the safety of crane operation.
About the Authors
V. A. Roshchin
Engineer ITC "KROS" LLC
Russian Federation
Russian Federation
Vitaly A. Roshchin, Engineer
141281; Office 415, 1/1B Sanatorny Proezd; Pushkinsky; Ivanteevka
Moscow region
A. N. Nazarov
Bauman Moscow State Technical University
Russian Federation
Russian Federation
Alexander N. Nazarov, Cand. Tech. Sc., Associate Professor
department "Lifting and transport systems"
105005; 2nd Baumanskaya str. 1; Moscow
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Review
For citations:
Roshchin V.A., Nazarov A.N. Upgrading the Strain-Gauge Axle for Load Limiters. Machines and Plants: Design and Exploiting. 2025;(3):1 - 10. (In Russ.)
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