Florian MUNTEAN

25-64 STUDIUL COMPORTĂRII DINAMICE A STÂLPILOR CU DIFERITE NIVELE DE ÎNCĂRCARE

Această intrare a fost publicată în 2014 Revista Volumul 25 și etichetată Cornel HAŢIEGAN Florian MUNTEAN Gilbert Rainer GILLICH Vasile IANCU Zeno-Iosif PRAISACH la de

A STUDY REGARDING THE DYNAMIC BEHAVIOR OF
COLUMNS SUBJECTED TO DIFFERENT TIP MASSES
The present study aims to highlight the effect of a tip mass upon the
behavior of columns. We have first analytically determined, for a specific
column, the critical buckling force to find the range in which it works in the
elastic domain. Afterwards, by means of numerical simulations, we performed
analysis regarding the influence of loads due to different additional masses and
have identified the effect upon the natural frequencies and modal shapes,
concluding that the higher the mode number, the higher the influence.
Keywords: column, buckling, natural frequency, simulation
Cuvinte cheie: stâlp, flambaj, frecvenţe proprii, simulare
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23-62 DETERMINAREA FRECVENŢELOR PROPRII ALE BARELOR COTITE

Această intrare a fost publicată în 2013 Revista Volumul 23 și etichetată Florian MUNTEAN Gilbert Rainer GILLICH Zeno-Iosif PRAISACH la de

DETERMINING THE NATURAL FREQUENCIES
OF BENDED BEAMS
This paper presents the natural frequencies obtained from modal
analysis, performed with ANSYS software, for the first 60 vibration modes of a
bended bar (L shape) without defect and with defects situated on three different
locations along the column. The research was made in order to highlight the
changes of the structure’s dynamic behaviour in terms of natural frequencies.
Cuvinte cheie: frecvenţe proprii, bara cotită, detectarea defectelor, simulare
Keywords: natural frequencies, bended beam, damage detection, simulation

23-62 DETERMINAREA FRECVENŢELOR PROPRII