Advances in Vibration Analysis Research by Farzad Ebrahimi

By Farzad Ebrahimi

Show description

Read Online or Download Advances in Vibration Analysis Research PDF

Best control systems books

Missile Guidance and Control Systems

Airborne car information and keep an eye on platforms is a huge and broad- angled engineering and technological quarter for study, and is still very important not just in army security structures but additionally in business strategy keep watch over and in advertisement transportation networks akin to a variety of worldwide Positioning structures (GPS).

Geometrical Dynamics of Complex Systems: A Unified Modelling Approach to Physics, Control, Biomechanics, Neurodynamics and Psycho-Socio-Economical Dynamics ... and Intelligent Systems Engineering)

This quantity offers a accomplished creation into rigorous geometrical dynamics of complicated platforms of varied natures. through "complex systems", during this e-book are intended high-dimensional nonlinear structures, which might be (but no longer unavoidably are) adaptive. This monograph proposes a unified geometrical method of dynamics of complicated structures of assorted forms: engineering, actual, biophysical, psychophysical, sociophysical, econophysical, and so on.

Transient Stability of Power Systems: A Unified Approach to Assessment and Control

Temporary balance of energy structures is a monograph dedicated to a hybrid-direct temporal procedure referred to as SIME (for unmarried desktop Equivalent). SIME tactics temporal information regarding the multimachine procedure dynamics to evaluate and keep an eye on any form of temporary instabilities less than any style and version of energy platforms.

Mathematical Models in Natural Science and Engineering

This publication is helping the reader familiarize yourself with a number of mathematical types for mechanical, electric, actual, atronomical, chemical, organic, ecological, cybernetical and different platforms and tactics. The types tested are evolutionary types, i. e. the types of time-varying tactics often called dynamic platforms, corresponding to fluid move, organic strategies, oscillations in mechanical and electromagnetic structures, and social structures.

Extra resources for Advances in Vibration Analysis Research

Example text

In the this Chapter, we derive a DFE formulation for the free vibration analysis of curved sandwich beams and test it against FEM and DSM to show that DFE is another viable tool for structural vibration analysis. The face layers are assumed to behave according to EulerBernoulli theory and the core deforms in shear only, as was also studied by Ahmed (1971,1972). The authors have previously developed DFE models for two straight, 3-layered, sandwich beam configurations; a symmetric sandwich beam, where the face layers are assumed to follow Euler-Bernoulli theory and core is allowed to deform in shear only (Adique & Hashemi, 2007, and Hashemi & Adique, 2009), and a more general nonsymmetric model, where the core layer of the beam behaves according to Timoshenko theory while the faces adhere to Rayleigh beam theory (Adique & Hashemi, 2008, 2009).

B. Z. T. Atay, Homotopy perturbation method for free vibration analysis of beams on elastic foundations, IOP Conf. : Mater. Sci. , Volume: 10, Number:1, 9th World Congress on Computational Mechanics and 4th Asian Pasific Congress on Computational Mechanics, Sydney, Australia (2010). R. Lu, M. K. R. China 1. Introduction Beams are fundamental models for the structural elements of many engineering applications and have been studied extensively. There are many examples of structures that may be modeled with beam-like elements, for instance, long span bridges, tall buildings, and robot arms.

225 m) would make the beam appear nearly straight). 2 Clamped-Clamped (C-C) end conditions The next test case uses the same beam properties as the previous example, with clampedclamped end conditions. The results of the DFE, and 3- and 4-DOF/node FEM formulations along with those reported by Ahmed (1971,1972) are listed in Table 2 below. For the first set of results from Ahmed (1971), shown in the second column of Table 2 below, each node has 4-DOFs. The 10-element FEM model developed employs similar polynomial Hermite shape functions such as those found in equations (10) and (11) for the approximation space of the field variables v, v’, w and w’, respectively.

Download PDF sample

Rated 4.49 of 5 – based on 23 votes