The literature contains scant information on the free vibration analyses of loaded single-tapered beams (STBs) (i.e., STBs carrying concentrated elements (CEs)) Furthermore, even when such studies have been performed, they generally only consider case constrained (e.g., free-clamped (F-C)) beams. In other words, problem unconstrained free-free (F-F)) has not yet to be addressed. Thus, present s...

Normalized mutual power of radiation, active and reactive, has been analyzed in this paper. The sound source is an annular plate, clamped to a planar, rigid and infinite baffle. The plate’s vibrations are axisymmetric and sinusoidal with respect to time. A Kirchhoff-Love’s model of a perfectly elastic plate has been used. First, the integral formulas for the mutual sound power have been present...

A novel method, which was called a slope method, has been proposed to measure fluid density by the micro-cantilever sensing chip. The theoretical formulas of the slope method were discussed and established when the micro-cantilever sensing chip was under flexural and torsional vibrations. The slope was calculated based on the fitted curve between the excitation and output voltages of sensing ch...

Some insects or mammals use antennae or whiskers to detect by the sense of touch obstacles or recognize objects in environments in which other senses like vision cannot work. Artificial flexible antennae can be used in robotics to mimic this sense of touch in these recognition tasks. We have designed and built a two-degree of freedom (2DOF) flexible antenna sensor device to perform robot naviga...

by Rudy Marcus, Nobel prize-winner: Professor Rudolph A Marcus. The field of unimolecular reactions and bimolecular recombination processes [1–8] has undergone a number of changes during the past 90 or so years. In the middle 1920s, the theories of Hinshelwood, Rice/Ramsperger, and Kassel were developed at a time when little was known about potential energy surfaces. So the theory was phrased i...

Extensional vibrations are analyzed in the linear theory of an elastic rod of finite length which accounts for lateral deformation. A simplified version of a theory of elastic rods is used; it is based on the concept of a directed curve as developed by Green et al. [1–3]. This simplified version is similar to Mindlin and Herrmann’s theory [4], and has been used recently by Krishnaswamy and Batr...

Chatter vibrations during machining operations are large-amplitude self-excited vibrations, which result in the loss of physical contact between workpiece and tool. This paper presents an electric sensor, is used to detect cutting noncutting periods operation. The spectrum signal sensor free from environmental noise can be select chatter frequencies as boundary stability approached. detection a...

This article investigates the longitudinal vibrations of a semi-infinite circular cylindrical elastic shell filled with viscous compressible fluid. It is believed that are excited by suddenly switched on displacement at end. To solve problem, refined equations interacting an internal fluid, previously proposed authors, were taken as main resolving equations. In this case, lateral surfaces consi...