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We report on experimental demonstration of single- and few-layer chemical vapor deposited (CVD) molybdenum disulfide (MoS2) nanomechanical resonators by employing a scalable transfer-print method. CVD MoS2 crystals are released from their growth substrates (with well-preserved, uniform crystal quality) by a water-assisted lift-off technique, and suspended over pre-patterned arrays of microtrenches...
We report on measurement and modeling of dynamic energy harvesters based on oscillating piezoelectric cantilevers, along with careful calibration of energy conversion properties of such devices in their dynamic responses. We employ thin-film lead zirconate titanate (PZT)-based cantilevers fabricated by laser micromachining, with efficient proof masses enabled by a heavy alloy with a low melting temperature...
This digest paper reports experimental demonstration of a new type of nanoelectromechanical device, combining contact-mode nanomechanical switching with sensitive integrated strain gauges in suspended thin (sub-100nm) silicon nanowires (SiNWs). By measuring and modeling the interesting coupling effects between mechanical strain and electrical transport in highly piezoresistive (PZR) thin SiNWs at...
In order to shorten the design cycle of FOPS and improve the pass rate of FOPS laboratory destructive tests, nonlinear finite element methods of elastic-plastic large displacement were presented to simulate the dynamic displacement, velocity and acceleration of drop hammer during impact process, and the dynamic changing law of these parameters during the whole collision were analyzed. At the same...
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