This study presents the dynamic and buckling analysis of laminated composite thin arch plate frame structures employing Classical Plate Theory with Finite Element Analysis. For this purpose, effects radius curvature, aspect ratio, stacking order such on first ten natural frequencies, mode shapes, critical load, unstable regions are investigated. Besides, two-bay curved structure is In to perfor...

Vortex structures made by impulsively translating low aspect-ratio plates are studied experimentally using defocusing digital particle image velocimetry. The investigation of translating plates with a 90◦ angle of attack is important since it is a fundamental model for a better understanding of drag-based propulsion systems. Rectangular flatrigid, flexible and curved-rigid thin plates with the ...

We describe an experimental apparatus for making detailed morphological observations of the growth of isolated plate-like ice crystals from water vapor. Each crystal develops a plate-on-pedestal (POP) geometry, in which a large, thin, plate-like crystal grows out from the top edge of an initially prismatic seed crystal resting on a substrate. With the POP geometry, the substrate is not in conta...

Thin plate splines have been used successfully to model curves and surfaces. A new application is in data mining where they are used to model interaction terms. These interaction splines break the \curse of dimensionality" by reducing the high-dimensional nonparametric regression problem to the determination of a set of interdependent surfaces. However, the determination of the corresponding th...

Abstract In this research, a new method based on singular spectrum analysis (SSA) and fuzzy entropy is developed for damage detection thin wall-like structures, the normalized employed as an indicator to identify severity of damage. The lead zirconate titanate (PZT) transducers are used in research generate detect Lamb waves. During detection, collected signals from PZT sensors firstly decompos...

Abstract In this paper, first, the surface acoustic wave (SAW) propagation mode and a method of analyzing property are introduced briefly. Then, typical composite substrate structures that have been developed to obtain high-performance SAW devices reviewed. Furthermore, recent results obtained by author research colleagues on resonance properties leaky (LSAW) longitudinal-type LSAW dissimilar-m...

A rapid and simple method has been developed for the screening and identification of natural antioxidants from the leaves of Acer ginnala Maxim.( AG). The process is that upon reaction with 1,1-diphenyl-2-picrylhydrazyl (DPPH), the white yellow spots of compounds with potential antioxidant effects will be significantly observed on the thin-layer chromatography (TLC), and possible structures wil...

This study presents the dynamic and buckling analysis of laminated composite thin arch plate frame structures employing Classical Plate Theory with Finite Element Analysis. For this purpose, The effects radius curvature, aspect ratio, stacking order such on first ten natural frequencies, mode shapes, critical load, unstable regions are investigated. Besides, two-bay curved structure is In to pe...

In this paper, we present a technique for the deposition of inks, toners, organic polymers, fuels, small solid particles, biological and chemical fluids, using a fluid ejector. The ejector design is based on a flextensional transducer that excites the axisymmetric resonant modes of a clamped circular plate. It is constructed by depositing a thin piezoelectric annular plate onto a thin, edge cla...

This paper proposes a stiffness sensitivity analysis with principal strain application to decrease the out-of-plane vibration, which is main source of sound radiation mechanical structures thin plate parts. The evaluated as differential coefficient target response respect design variable, e.g., or mass. For suppressing we pay attention finding an appropriate location on structure add local stif...