Numerical Methods for Transverse Vibration Analysis of Straight Euler and Timoshenko Beams
Journal Title: INCAS BULLETIN - Year 2019, Vol 11, Issue 3
Abstract
This paper presents a short review of numerical methods used for lateral vibration analysis in the case of straight Euler and Timoshenko beams. A particular integral method is described with more details. This approximate integral method is based on the use of flexibility influence functions (Green’s functions). It leads to a matrix formulation and to an eigenvalue problem for vibration analysis. The presented approach is able to estimate separately the shear effects and the rotary inertia effects and also the combined effects. Simple numerical examples are also presented for comparisons with analytical and finite elements results. The results show good agreement.
Authors and Affiliations
Viorel ANGHEL
Book Review: English-Romanian Dictionary for Mechanical Engineering, Lorena DELEANU, Gabriela DIMA, Daniela SORCARU Editura Didactica si Pedagogica, Bucuresti, 2009 Vol. 1: A-M, Vol. 2: N-Z, ISBN 978-973-30-2595-5
Investigation of the flow around an aircraft wing of section NACA 2412 utilising ANSYS fluent
The aim of this paper is to produce and validate a simulated model of the external flow around the NACA 2412 using ANSYS Fluent; utilising experimental data for a low velocity case (20.73 m/s) from literature. This model...
STUDIES ON FLUTTER PREDICTION
The purpose of this paper is to study the instability of the dynamic flutter. The justification is expressed by the fact that the occurrence of flutter within the aircraft’s flight envelope results in irreversible struct...
Development of pre-flight planning algorithms for the functional-program prototype of a distributed intellectual control system of unmanned flying vehicle groups
In article presents algorithmic for a reconnaissance and combat unmanned flying vehicle (UFV) group pre-flight planning. The algorithms, which we elaborated, includes: algorithm, involved for mission target decision, mem...
Aerodynamic Analysis of UAVs. MFD Nimbus
The robotic airborne systems have undergone a rapid development due to information requirements with data from areas of interest and technological miniaturization. Although these aerial systems have high capabilities, th...