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RISEffect of Three Dimensional Surface Topography on Gas Flow in Rough Micronozzles
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The gas flow characteristics in rectangular cross section converging–diverging micronozzles incorporating the effect of threedimensional (3D) rough surface topography are investigated. The fractal geometry is utilized ...
Scale Effect on Tension Induced Intermodal Coupling in Nanomechanical Resonators
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Scale effect on the tensioninduced intermodal coupling between the flexural modes in nanomechanical resonators is investigated. Based on the nonlocal theory of elasticity, a theoretical model is developed to depict the ...
Transverse Vibrations of Mixed Mode Cracked Nanobeams With Surface Effect
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Slant edge cracked effect considering the inherent relation between surface energy and mixedmode crack propagations on the free transverse vibrations of nanobeams with surface effect is investigated. First, the slant edge ...
Study on Probabilistic Damage Constitutive Relation of Rocks Based on Maximum-Entropy Theory
Publisher: ASCE
Abstract: The Weibull-distribution–based probabilistic damage model is widely used to represent the mesoscopic strength distribution of rock. However, it is unable to adequately describe the entire rock failure process. In this ...
Multi-Direction Vibration Isolator for Momentum Wheel Assemblies
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Momentum wheel assemblies (MWAs) play an important role in the attitude adjustment of the satellite by momentum exchange. The micro-vibration induced by the MWAs affects attitude adjustment and leads to unclear imaging and ...
Design and Analysis of a Piezoelectric Vibration Energy Harvester Using Rolling Mechanism
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, a novel piezoelectric vibration energy harvester using rolling mechanism is presented, with the advantage of harvesting more vibration energy and reducing the impact forces caused by the oscillation. The ...
Adsorption Induced Surface Effects on the Dynamical Characteristics of Micromechanical Resonant Sensors for In Situ Real Time Detection
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: By incorporating modified Langmuir kinetic model, a novel slowly timevarying dynamical model of in situ micromechanical sensors is proposed to realtime monitor atomic or molecular adsorptions on the solid surface in a ...
Laboratory Observation of Spalling Process Induced by Tangential Stress Concentration in Hard Rock Tunnel
Publisher: ASCE
Abstract: A series of laboratory experiments were carried out to study the tangential stress concentration–induced spalling failure process of rock in an arch-shaped tunnel model under plane-strain loading condition by considering ...
Relative Vibration of Suspended Particles With Respect to Microchannel Resonators and Its Effect on the Mass Measurement
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this work, the three-dimensional fluid–solid interaction vibration of particle in the oscillating resonator and its effect on the dynamic characteristics are analyzed and discussed. It demonstrates that the displacement ...
Relative Vibration of Suspended Particles With Respect to Microchannel Resonators and Its Effect on the Mass Measurement
Publisher: American Society of Mechanical Engineers (ASME)
Abstract: In this work, the three-dimensional fluid–solid interaction vibration of particle in the oscillating resonator and its effect on the dynamic characteristics are analyzed and discussed. It demonstrates that the displacement ...