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SUMMARY:Energy harvesting from railway slab-tracks - Dr Mohammed Hussein\,
  Qatar University
DTSTART:20201120T160000Z
DTEND:20201120T170000Z
UID:TALK151378@talks.cam.ac.uk
CONTACT:46601
DESCRIPTION:This talk presents about research on harvesting energy from ra
 ilway-slab tracks. Energy can be harvested by converting the mechanical en
 ergy resulting from vibration of tracks to electrical energy. The energy c
 an then be used for a number of applications including powering of sensors
  for health-monitoring of tracks. In this research\, a railway slab-track 
 is simulated by using double Euler-Bernoulli beam system. The parameters o
 f the track are calculated from a model-updating exercise of a mock-up tra
 ck for Doha metro. Vibration of the track is modelled by accounting for bo
 th the quasi-static and dynamic excitations resulting from the un-sprung a
 xles of a train with a number of coaches\; simulating a standard train wit
 h the same parameters of trains of Doha metro. The dynamic excitation is s
 imulated by using randomly-generated unevenness from standard Power Spectr
 al Density (PSD) from the literature. The responses of rails and slab are 
 calculated for different unevenness realizations\, and results are transfo
 rmed in the frequency domain and used as inputs for a base-excited SDOF sy
 stem to simulate the coupling of harvesters to rails and slab. The present
 ation will present results of the simulations showing the variation of har
 vested energy when changing their natural frequencies for unevenness corre
 sponding to tracks in good\, average\, and poor conditions.  
LOCATION:Online - Teams.  Please email div-c@eng.cam.ac.uk for the link
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