scholarly journals Forced vibration of the aluminum beam using a piezoelectric actuator - experiment and finite element analysis.

2021 ◽  
Author(s):  
V. Goga ◽  
V. Kutiš ◽  
Š. Berta ◽  
G. Gálik ◽  
J. Murin ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Piezoelectric Actuator ◽  
Forced Vibration ◽  
Element Analysis ◽  
Aluminum Beam

Forced Vibration Behavior of Adhesively Bonded Single-Lap Joint

2011 ◽  
Vol 110-116 ◽  
pp. 3611-3616 ◽  
Author(s):  
Xiao Cong He
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Forced Vibration ◽  
Natural Frequencies ◽  
Dynamic Test ◽  
Lap Joint ◽  
Adhesively Bonded ◽  
Element Analysis ◽  
Single Lap Joint ◽  
Vibration Behavior

This paper deals with forced vibration behavior of adhesively bonded single-lap joint theoretically and experimentally. The finite element analysis (FEA) software was used to predict the natural frequencies and frequency response functions (FRFs) of the joint. The dynamic test software and the data acquisition hardware were used in experimental measurement of the dynamic response of the joint. It is shown that the natural frequencies of the joint from experiment are lower than those predicted using finite element analysis. It is also found that the measued FRFs are close to the predicted FRFs for the first two modes of vibration of the joint. Above the second mode of vibration, there is considerable discrepancy between the measured and predicted FRFs.

scholarly journals Finite Element Analysis of Forced Vibration for a Pipe Conveying Harmonically Pulsating Fluid

2005 ◽  
Vol 48 (4) ◽  
pp. 688-694 ◽  
Author(s):  
Young Soo SEO ◽  
Weui Bong JEONG ◽  
Seok Hyeon JEONG ◽  
Jun Suk OH ◽  
Wan Suk YOO
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Forced Vibration ◽  
Element Analysis ◽  
Pulsating Fluid

Finite Element Analysis of Cantilever Beam for Optimal Placement of Piezoelectric Actuator

2011 ◽  
Vol 110-116 ◽  
pp. 4212-4219
Author(s):  
Abhay M. Khalatkar ◽  
Rakesh H. Haldkar ◽  
V.K. Gupta
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Cantilever Beam ◽  
Piezoelectric Actuator ◽  
Smart Structures ◽  
Piezoelectric Actuators ◽  
Small Scale ◽  
Cantilever Plate ◽  
Element Analysis ◽  
Plate Structure

There is increasing demand for developing smart structures in various electronic and electromechanical systems during past two decades. The modeling analyzing and manufacturing of these small-scale components remained always a challenging job. Finite element capability available in commercial software package ANSYS makes it convenient to perform modeling and analyzing of these smart structures. In this study a 3-D finite element analysis for cantilever plate structure excited by patches of piezoelectric actuator is presented. To investigate the influence of actuator location and configuration of piezoelectric actuators attached to the plate structure in order to identify the optimal configuration of the actuators for selective excitation of the mode shapes of the cantilever plate structure. The finite element modeling based on ANSYS package using modal analysis and harmonic analysis is used in this study for cantilever plate structure excited by patch type of piezoelectric actuators of PZT-5A at different locations of same geometrical parameters on the cantilever beam. The results clearly indicate optimal locations and configuration of the piezoelectric actuator patches for achieving the excitation of plate modes. Consequently, the results indicate that effective active damping of structural vibration of the cantilever plate can be achieved by proper positioning of the piezoelectric actuator patches.

Damage Detection in Structures Using Electromechanical Impedance and Finite Element Analysis

2015 ◽  
Vol 799-800 ◽  
pp. 971-975
Author(s):  
Mohamed Djemana ◽  
Meftah Hrairi
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Structural Damage ◽  
Evaluation Method ◽  
Element Analysis ◽  
Electromechanical Impedance ◽  
Promising Tool ◽  
Modeled Structure ◽  
Safety And Reliability ◽  
Aluminum Beam

Impedance-based structural health monitoring (SHM) techniques have been developed as a promising tool for real-time structural damage assessment, and are considered as a new non-destructive evaluation method. It is gaining popularity due to its potential of reducing maintenance costs while increasing safety and reliability. This article present the results of Finite Element analysis performed for aluminum beam with bonded piezoelectric transducer (PZT). Modeled structure was excited to vibrate at high frequency range and electromechanical impedance (EMI) plots were obtained from the harmonic analysis. Notches were introduced in the beam and the damage metrics were used to asses qualitative changes in structural properties of the system. Furthermore, a parametric study of the effects of different variables was carried out. The numerical results show a good agreement was observed.

Design and Research of Micro-Displacement Amplifier Driven by Piezoelectric Actuator

2011 ◽  
Vol 308-310 ◽  
pp. 284-287 ◽  
Author(s):  
Xi Ping Chen ◽  
Yan Min Xiao ◽  
Kun Lv
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Piezoelectric Actuator ◽  
Dynamic Characteristics ◽  
High Frequency ◽  
Element Analysis

Piezoelectric actuator was widely used in precision machinery as driving element used for their small size, high frequency, large resolution displacement and so on. A new micro-displacement amplifier driven by PZT is designed in this paper. The concrete machine parameters are studied out by finite element analysis. And the prototype is trial-manufactured. Experiential results show that the new mechanism has good displacement amplification performance and dynamic characteristics.

Finite Element Analysis of Dynamic Rigidity of Diesel Engine Housing

1995 ◽  
Author(s):  
Igor V. Maslov ◽  
Raymond McCafferty ◽  
James P. Rea
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Diesel Engine ◽  
Forced Vibration ◽  
Angular Position ◽  
High Stress ◽  
Lubricating Oil ◽  
Design Parameters ◽  
Element Analysis ◽  
Hydrodynamic Behaviour

Abstract High levels of dynamic loads in a modem diesel engine take place at low frequencies and are connected with the forced vibration of the engine under the action of excitation gas and inertia forces. The lower range of these frequencies are equivalent to the speed of the engine (two stroke) and half engine speed (four stroke). They lead to high stress levels and deformations and often cause internal damage or component failure as well as increasing vibration transmitted to the foundation. One of the most important factors in improving the reliability and durability of engine components and reducing the level of vibration is providing sufficient rigidity for the engine housing. Careful choice of the main dimensions and design parameters will greatly influence engine performance. An engineering approach to the Finite Element analysis of low frequency forced vibration is proposed for the elastic system including crankshaft, engine housing, elastic mounting and foundation. This approach is applied to the analysis of medium speed marine diesel engines with particular attention being paid to the analysis of the rigidity of the engine housing. A solution procedure is proposed to define the loads transmitted from the crankshaft to the main bearings. The procedure takes into account the reciprocal influence of elastic and inertial characteristics of the crankshaft and the engine housing mounting on the elastic foundation, alteration of load amplitudes according to the angular position of the crankshaft, and hydrodynamic behaviour of the lubricating oil film in the contact zone.

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