6533b86efe1ef96bd12cc636

RESEARCH PRODUCT

Energy-Saving Mechatronic System for Fatigue Tests of Materials under Variable-Amplitude Proportional Bending and Torsion

Ewald MachaWojciech Macek

subject

Materials scienceInertial frame of referencebusiness.industryTorsion (mechanics)Structural engineeringMechatronicsCondensed Matter PhysicsAtomic and Molecular Physics and OpticsData acquisitionAmplitudeSoftwareControl systemGeneral Materials ScienceDigital controlbusiness

description

The paper presents structure and principles of operation of the fatigue test stand for specimens subjected to polyharmonic proportional bending and torsion. The stand is equipped with a digital control system based on data acquisition board Daqboard/2000 and LabVIEW environment. The history of polyharmonic loading is a sum of four harmonic components of various amplitudes, frequencies and phases adjusted by means of four rotating disks with unbalanced masses of the inertial vibrator. Application of a computer with the software elaborated by the authors and the control system enables determination of fatigue characteristics of the material under constant or variable amplitude bending, torsion and any combination of bending with torsion.

https://doi.org/10.4028/www.scientific.net/ssp.164.67