Author
Mohammad Hoseinzadeh
Bio: Mohammad Hoseinzadeh is an academic researcher from Ferdowsi University of Mashhad. The author has contributed to research in topics: Vibration & Bingham plastic. The author has an hindex of 2, co-authored 4 publications receiving 31 citations.
Papers
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TL;DR: In this article, the influence of external electrorheological dampers on the dynamic behavior of composite laminated plates has been investigated and several numerical results are presented and effects of imperative parameters such as applied voltage, controlled electric field, radius and initial gap of the electrodes, position of the ER damper and stacking sequences of the composite plate have considerable effect on the vibration suppression time of the plate.
32 citations
TL;DR: In this article, the dynamic stability of composite sandwich plates with a smart elastomer layer subjected to an axial periodic load was investigated, and a finite element model of the composite sandwich plate with Magn...
Abstract: The dynamic stability of composite sandwich plates with a smart elastomer layer subjected to an axial periodic load is investigated. A finite element model of the composite sandwich plate with Magn...
18 citations
TL;DR: In this article , the effects of using carbon nanotubes (CNT) and geometric imperfection on the vibrational behavior of microplates submerged in the fluid have been studied analytically.
2 citations
TL;DR: In this article, the effect of the application of single or double-sided composite patches in enhancement of dynamic load carrying capacity of perforated cylindrical panels is investigated. And the results indicated that patches with a different number of plies and stacking sequences can be found, which improve the dynamic buckling load of the polygonal panels.
Abstract: The dynamic buckling of the patched perforated cylindrical panels, subjected to axial impact load, is investigated. Effects of various parameters such as load time duration, sector angle, cutout size, and thickness of the cylindrical panel are investigated. Furthermore, the effectiveness of the application of single or double-sided composite patches in enhancement of dynamic load carrying capacity of the perforated panels is presented. Due to complexity, material anisotropy, and discontinuity in geometry involved in the dynamic analysis of perforated/repaired panels, closed-form solutions are practically unobtainable. Numerical studies using commercial finite element code is used for the analyses. The results presented herein indicate that patches with a different number of plies and stacking sequences can be found, which improve the dynamic buckling load of the perforated panels.
1 citations
Journal Article•
TL;DR: In this article, the dynamic stability of a composite plate with external electrorheological (ER) damper subjected to an axial periodic load is investigated and the finite element model of the structure is developed and constant acceleration average method is used to obtain the response of the system.
Abstract: The dynamic stability of a composite plate with external electrorheological (ER) damper subjected to an axial periodic load is investigated. Electrorheological fluids are a class of smart materials, which exhibit reversible changes in mechanical properties when subjected to an electric field. As a result, the dynamic behavior of the structure is changed. The ER damper is used for suppressing the vibrations and improving the stability of the system. The Bingham plastic model is employed to express the behavior of the ER fluid. The finite element model of the structure is developed and constant acceleration average method is used to obtain the response of the system. Effect of different parameters such as the electric field, the orientation of the ER damper, the initial gap between the two electrodes of the ER damper and the stacking sequences of the plate on the first instability boundaries of the composite plate are investigated. © 2016 IAU, Arak Branch.All rights reserved.
1 citations
Cited by
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TL;DR: In this paper, a new damper with four discrete damping modes is applied to vehicle semi-active air suspension, which makes its damping adjustment more efficient and more reliable.
75 citations
TL;DR: In this article, poly(diphenylamine) (PDPA) particles were synthesized as a novel semiconducting electro-responsive electrorheological (ER) material by a chemical oxidative polymerization process and their ER characteristics were investigated at various electric fields.
38 citations
TL;DR: In this article, a three-layered sandwich beam with an adaptive magneto-rheological fluid (MRF) core layer is investigated, and the authors derived the instability bounds based on the classical beam theory for the face layers, magnetic field dependent complex modulus approach for viscoelastic material model and the linear first-order piston theory for aerodynamic pressure.
35 citations
TL;DR: Bowl-like titanium oxide nanoparticles were successfully prepared by a simple solvothermal method using absolute ethanol and isopropanol as the cosolvent and excellent ER properties were achieved when the TiO2 particles were dispersed in silicone oil under an external electric field.
Abstract: Bowl-like titanium oxide nanoparticles were successfully prepared by a simple solvothermal method using absolute ethanol and isopropanol as the cosolvent. Ostwald ripening coupled with the inner-stress-induce effect were assumed to play an important role in the formation of this unique bowl-like morphology. The morphological evolution from solid nanosphere to bowl-like nanoparticle was investigated by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Besides, the structural characteristics of the as-synthesized TiO2 nanoparticles were confirmed by X-ray diffraction (XRD), Fourier transform infrared (FT-IR) and thermogravimetric analysis (TGA). Moreover, a rotational rheometer was operated to examine the electrorheological (ER) effect. Excellent ER properties were achieved when the TiO2 particles were dispersed in silicone oil under an external electric field.
33 citations
TL;DR: In this paper, a robust control method is proposed for the vibration suppression of the piezoelectric laminated composite cantilever rectangular plate subjected to the aerodynamic force in the hygrothermal environment.
Abstract: In this paper, a robust control method is proposed for the vibration suppression of the piezoelectric laminated composite cantilever rectangular plate subjected to the aerodynamic force in the hygrothermal environment. The laminated composite cantilever rectangular plate is placed on the piezoelectric actuator and sensor for the upper and lower surfaces. The classical laminated composite plate theory and Hamilton's principle are applied to derive the dynamic equation of motion for the piezoelectric laminated composite cantilever rectangular plate under the aerodynamic force and hygrothermal loads. The structural damping is considered for the piezoelectric laminated composite cantilever rectangular plate. Galerkin method is used to obtain a two-degree-of-freedom discrete ordinary differential control equation of motion. For the active vibration suppression, a robust controller for the uncertain systems is designed through the obtained ordinary differential equation of motion. Moreover, the full-dimensional state observer is constructed to calculate the close-loop system. The influences of the moisture, temperature and geometric parameters on the dynamics behaviors of the piezoelectric laminated composite cantilever rectangular plate are investigated. The accuracy and effectiveness of the robust controller are verified in terms of the moisture concentration, temperature, aspect ratio, damping and parameter uncertainty by numerical simulations.
33 citations