The field of mechanical manufacturing is becoming more and more demanding on machining accuracy. It
is essential to monitor and compensate the deformation of structural parts of a heavy-duty machine tool.
The deformation of the base of a heavy-duty machine tool is an important factor that affects machining
accuracy. The base is statically indeterminate and complex in load. It is difficult to reconstruct deformation
by traditional methods. A reconstruction algorithm for determining bending deformation of the base of a
heavy-duty machine tool using inverse Finite Element Method (iFEM) is presented. The base is equivalent
to a multi-span beam which is divided into beam elements with support points as nodes. The deflection
polynomial order of each element is analysed. According to the boundary conditions, the deformation compatibility conditions and the strain data measured by Fiber Bragg Grating (FBG), the deflection polynomial
coefficients of a beam element are determined. Using the coordinate transformation, the deflection equation of the base is obtained. Both numerical verification and experiment were carried out. The deflection
obtained by the reconstruction algorithm using iFEM and the actual deflection measured by laser displacement sensors were compared. The accuracy of the reconstruction algorithm is verified.
Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies
Informacja
SZANOWNI CZYTELNICY!
UPRZEJMIE INFORMUJEMY, ŻE BIBLIOTEKA FUNKCJONUJE W NASTĘPUJĄCYCH GODZINACH:
Wypożyczalnia i Czytelnia Główna: poniedziałek – piątek od 9.00 do 19.00