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Keywords: cantilevers
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Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. December 2011, 133(6): 061019.
Published Online: November 28, 2011
..., a special case of a cantilever microbeam is studied and modeled as a distributed-parameter system, which is attached to the PCB. These lumped-distributed and distributed-distributed models are discretized into ordinary differential equations, using the Galerkin method, which are then integrated numerically...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. October 2011, 133(5): 051004.
Published Online: July 26, 2011
... characteristic of a cracked cantilever beam is approximated by a truncated polynomial series and response amplitudes of various harmonics are investigated for both qualitative and quantitative characterization. A new procedure is suggested whereby the presence of a breathing crack in a structure can be first...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. August 2011, 133(4): 041010.
Published Online: April 8, 2011
... will be interpolated by those of the limiting plane-strain and plane-stress conditions. The key idea in the interpolation is to derive the interpolation parameter analytically by using the fundamental frequency of a cantilevered beam of moderate aspect ratios. To deal with the distribution effects of a tip mass over...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. February 2011, 133(1): 011006.
Published Online: December 17, 2010
... cantilever benders with interdigitated electrode patterns were utilized. The interdigitated design is beneficial for microenergy harvesting devices because it utilizes the d 33 mode, which can generate higher voltage than the d 31 mode design. It can also eliminate the bottom electrode by only using...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. February 2011, 133(1): 011002.
Published Online: December 8, 2010
...M. Amin Karami; Daniel J. Inman This paper addresses an issue in energy harvesting that has plagued the potential use of harvesting through the piezoelectric effect at the micro-electro-mechanical systems (MEMS) scale. Effective energy harvesting devices typically consist of a cantilever beam...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. February 2011, 133(1): 011005.
Published Online: December 8, 2010
...F. Khameneifar; M. Moallem; S. Arzanpour This paper presents modeling and analysis of a piezoelectric mounted rotary flexible beam that can be used as an energy scavenger for rotary motion applications. The energy harvester system consists of a piezoelectric bimorph cantilever beam with a tip mass...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. October 2010, 132(5): 051005.
Published Online: August 19, 2010
... to MFC actuated clamped-free thin cantilevered beams. The structural frequency response behavior between the tip velocity of the cantilever beam and the actuation voltage of the piezoelectric material is investigated experimentally for cantilevered unimorph MFC actuated benders with aluminum, brass...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. June 2010, 132(3): 031004.
Published Online: April 22, 2010
... the linear receptance data, the dimension of the complex algebraic equations, which should be solved iteratively, are only related to nonlinear degrees of freedom (DOFs). A cantilever beam with a local nonlinear element is presented to show the procedure and performance of the proposed approach. The approach...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. August 2009, 131(4): 041010.
Published Online: June 8, 2009
...Arjun Roy; Anindya Chatterjee We study small vibrations of cantilever beams contacting a rigid surface. We study two cases: the first is a beam that sags onto the ground due to gravity, and the second is a beam that sticks to the ground through reversible adhesion. In both cases, the noncontacting...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. April 2009, 131(2): 021011.
Published Online: February 19, 2009
...Barun Pratiher; Santosha K. Dwivedy In this work the effect of the application of an alternating magnetic field on the large transverse vibration of a cantilever beam with tip mass is investigated. The governing equation of motion is derived using D’Alembert’s principle, which is reduced to its...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. February 2009, 131(1): 011010.
Published Online: January 6, 2009
...A. Erturk; P. A. Tarazaga; J. R. Farmer; D. J. Inman For the past five years, cantilevered beams with piezoceramic layer(s) have been frequently used as piezoelectric energy harvesters for vibration-to-electric energy conversion. Typically, the energy harvester beam is located on a vibrating host...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. February 2009, 131(1): 011008.
Published Online: January 6, 2009
...-cantilever structure made by inserting slots in a plate in out-of-plane flexural vibration, and (3) a point-coupled-beam system. The finite element method is used to obtain the mass and stiffness matrices for each system, and the damping matrix is fitted to a measured variation of the damping (modal damping...
Topics: Damping
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. December 2008, 130(6): 061006.
Published Online: October 15, 2008
... representative example: a cantilevered beam with longitudinal and transverse base excitations. The work begins with the systematic formulation of a representative system model, which is used to derive a number of pertinent metrics. A series of experimental results, which validate the work’s analytical findings...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. December 2008, 130(6): 061003.
Published Online: October 14, 2008
...S. Nima Mahmoodi, Post Doctorate; Nader Jalili The problem of vibrations of microcantilevers has recently received considerable attention due to its application in several nanotechnological instruments, such as atomic force microscopy, nanomechanical cantilever sensors, and friction force...
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J. Vib. Acoust. October 2008, 130(5): 054505.
Published Online: August 19, 2008
... is an ensemble of cantilever beams where at the tip of each beam a mass, known as the proof mass, is mounted. A beam with a proof mass at its tip is called a beam-mass system. By studying a variety of models representing the filter dynamics, it will be unraveled to what extent fabrication errors in beam-mass...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. August 2008, 130(4): 041002.
Published Online: June 11, 2008
...A. Erturk; D. J. Inman Cantilevered beams with piezoceramic layers have been frequently used as piezoelectric vibration energy harvesters in the past five years. The literature includes several single degree-of-freedom models, a few approximate distributed parameter models and even some incorrect...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. April 2008, 130(2): 021002.
Published Online: January 30, 2008
... are estimated as a by-product. Numerical examples, with the simply supported and cantilevered beams, are given to justify the applicability and versatility of the algorithm in practice. With the numerically simulated forced responses, which have the noise contamination and the error in the natural frequency...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. February 2008, 130(1): 011006.
Published Online: November 12, 2007
... is proposed to measure the controllability. To examine the present method, the self-identification experiments are performed using a flexible cantilevered beam with controllable additional mass attached to the beam. In the experiments, we simulate the self-identification of a flexible structure with variable...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Vib. Acoust. December 2007, 129(6): 686–700.
Published Online: January 19, 2007
... inverse method, is tested extensively through experimental and numerical means on cantilever beams with different damage scenarios. If the damage is located at a position within 0 – 35 % or 50 – 95 % of the length of the beam from the cantilevered end, while the resulting system equations are severely...