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Paper Information

Journal:   JOURNAL OF SIMULATION AND ANALYSIS OF NOVEL TECHNOLOGIES IN MECHANICAL ENGINEERING (JOURNAL OF SOLID MECHANICS IN ENGINEERING)   WINTER 2017 , Volume 9 , Number 4 ; Page(s) 647 To 660.
 
Paper: 

ASSESSMENT OF A COLUMN TYPE SIX-COMPONENT FORCE/TORQUE SENSOR BY THEORETICAL, SIMULATION AND EXPERIMENTAL APPROACHES

 
 
Author(s):  MOHAMMADI YOUNES*, HOSSEINI SAFARI KEIVAN, RAHMANI MOHSEN
 
* DEPARTMENT OF MECHANICAL ENGINEERING, SHAHID RAJAEE TEACHER TRAINING UNIVERSITY, TEHRAN, IRAN
 
Abstract: 

A multi-component force/torque sensor using strain gauges is applied to measure the static or dynamic forces and also the moments in all axis simultaneously. The applied column-type six-component force/torque sensor is composed of two flanges and a cylindrical elastic force-sensing element with a particular pattern of installed strain gauges. In this research the pattern of strain gauges on sensor is presented to electrically decouple each component of the applied loads. The theoretical model was developed for the presented pattern. Also the finite element simulation carried out with ABAQUS for whole model to evaluate the accuracy of the pattern in different situations. Furthermore, variety of load cases including the axial loads, the torsional torque and bending moments were applied to the prototype sensor to report the percentage deviations of experimental strains related to the equivalent theoretical model and the simulations. The results show that the actual values of the main diameter components of the calibration matrix not only are different from the theoretical values but also this matrix would not necessarily be diagonal. It is observed that the percent deviation of the simulation strains from theoretical values in all loading cases would be under 3%. As a prominent result, the minimum and maximum deviation between theoretical and experimental is related to shear force (Px) and bending moment (Mx) respectively by values of 0.27% and 8.12%.

 
Keyword(s): SIX-COMPONENT FORCE/TORQUE SENSOR, STRAIN GAUGE, CALIBRATION MATRIX
 
References: 
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