Nonlinear Dynamic (Vibration) Analysis of Irregular-Shaped Sandwich Plates by the Method of Complex Variables and Conformal Mapping

2020 ◽  
pp. 979-985
Author(s):  
P. Biswas ◽  
Bapi Karmakar
Keyword(s):  
Conformal Mapping ◽  
Nonlinear Dynamic ◽  
Vibration Analysis ◽  
Complex Variables ◽  
Sandwich Plates ◽  
Dynamic Vibration

Schwingungsanalyse an Industrierobotern*/Vibration analysis of industrial robots

2019 ◽  
Vol 109 (09) ◽  
pp. 656-661
Author(s):  
A. Karim ◽  
C. Michalkowski ◽  
A. Lechler ◽  
A. Verl
Keyword(s):  
Modal Analysis ◽  
Active Control ◽  
Normal Mode ◽  
Vibration Analysis ◽  
Industrial Robots ◽  
Vibration Exciter ◽  
Dynamic Vibration ◽  
Vibration Behavior ◽  
Working Space ◽  
Electromagnetic Vibration

Dieser Beitrag untersucht experimentell das dynamische Schwingverhalten eines „KR-500–3 MT“ von Kuka mittels eines elektromagnetischen Schwingerregers (Shaker) an insgesamt 28 Messposen im Arbeitsraum. Diese Untersuchungsmethode ist neuartig, da die Ergebnisse mit einer Modalanalyse mit Impulshammeranregung verglichen werden. Ab der vierten Eigenmode entstehen Unterschiede aufgrund der Anregungsform. Zudem wird an jeder Pose eine Messung mit angezogener Motorbremse und eine mit aktiver Regelung durchgeführt und miteinander verglichen.   This paper explores experimentally the dynamic vibration behavior of a Kuka KR-500 MT, using an electromagnetic vibration exciter (shaker) on a total of 28 measuring poses in the working space. As such studies are not known, the results are compared to a modal analysis with impulse hammer excitation. Starting from the fourth normal mode, differences arise due to the form of excitation. Both measurements are performed and compared with each other on each pose with brakes applied as well as with active control.

Vibration Analysis of Arbitrarily Shaped Sandwich Plates via Ritz Method

2001 ◽  
Vol 8 (2) ◽  
pp. 101-118
Author(s):  
C. M. Wang, K. K. Ang, L. Yang, E. Wat
Keyword(s):  
Vibration Analysis ◽  
Ritz Method ◽  
Sandwich Plates
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