|
Gao Xingliang
Shijiazhuang Institute of
Mechanical Engineering,
Shijiazhuang 050003, China
Zhou Kedong
School of Mechanical Engineering,
Nanjing University of Science & Technology,
Nanjing 210094, China
Hans Dresig
Institut für Mechanik,
TU Chemnitz, Chemnitz 09107, Germany |
|
|
METHOD TO IDENTIFY THE INSTALLATION
STIFFNESS OF MACHINES AND ITS APPLICATION
ON A PRINTING UNIT*
Abstract: A new method is proposed, by which the installation stiffness of machines can be identified on the base of experimental modal data, eigenfrequencies and eigenmodes for changed mounting stiffness can be predicted. The present method is successfully applied on a printing unit of a sheet-fed printing machine, which is investigated experimentally and theoretically. The identified stiffness points out, that the printing unit is unevenly installed, and this fact has been verified through the
followed measurement. According to the simulation results, the uneven installation has an obvious influence on the printing quality.
Key words:
Modal analysis Identification Boundary conditions Printing machine |