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To research structural strength of twin seat underframe in motor train unit, lightweight design and improvement, two analytic methods which are FEA and the experiment are used. First of all, twin seat underframe model is built. And according to the requirements of twin seat underframe, material property and loads are defined. FEA model is built and analyzed. Then, comparison result of FEA and experiment...
This paper considers mechanical stress and strain in a piezoresistive cantilever sensor under surface stress loading, which is the loading condition that occurs in biochemical sensing applications. Finite element simulations examine the piezoresistor sensitivity due to changes in cantilever length, width, and thickness, and piezoresistor size, location, and depth. A few unexpected results are found...
We report on the design and experimental validation of a distributed Brillouin-based optical fiber sensor embedded into concrete structures for temperature and strain measurement. A composite-made wave-like coating designed by finite-element analysis ensures the sensor is transferring optimally temperature and strain fields from the concrete to the optical fiber, where Brillouin scattering takes place...
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