نتایج جستجو برای: shaking amplitude
تعداد نتایج: 99101 فیلتر نتایج به سال:
Production of California table olives has declined significantly in recent years due to hand harvesting costs, often over 60% gross return. Mechanical could sharply decrease harvest increasing economic viability. harvester efficiency is a combination the percentage total fruit on tree removed by harvester, and time required do so. A comparison between an experimental canopy contact shaker comme...
Investigation of high amplitude pressure oscillations generated by boundary driving in shaped resonators has been carried out both theoretically and experimentally. In the theoretical modeling, the acoustic resonance in an axisymmetric resonator is studied by the Galerkin method. The resonator is exponentially expanded and the boundary driving is provided by a piston at one end. The pressure wa...
The severe vibration of a screw compressor outlet piping system caused the fatigue failure of some thermowells and the unscheduled shut down of the system. The main reasons of the abnormal vibration in the outlet piping system were investigated by developing an acoustic model to simulate the gas pulsation and establishing two finite element models to conduct the mechanical vibration analyses. T...
There are currently at least five aircraft runways built on the reclaimed coral sand foundations in South China Sea (SCS). The seismic dynamics and stability of revetment breakwaters nearby lands with SCS deserve attention. Taking reclamation engineering as background, this study performed several centrifuge shaking table tests (N = 50 g) to explore a breakwater runway foundation. It is reveale...
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