Recent content by Kajan thana

  1. K

    Individual project on Energy harvesting using piezoelectric material

    I have two questions: 1) Is it possible to cut the material with a laser cutter or scissors or do I need to have a specific tool? 2) What is the best way to attach the PZT-5H material to the beam but it can be easily detached for using it on another beam ( so no epoxy glue)?Thank you
  2. K

    Vibrational Modes: How They Affect Motion

    This data is on Bimorph beam (PEH)...
  3. K

    Vibrational Modes: How They Affect Motion

    Ps: It is not a homework hence why I did not leave it under that headline.
  4. K

    Difference Between FEA Result and Hand Calculation in Beam Bending?

    I ignored a negative sign in my analytical calculation, this is why I had two values in the opposite direction.
  5. K

    Difference Between FEA Result and Hand Calculation in Beam Bending?

    I managed to find the error. Thank you.
  6. K

    Difference Between FEA Result and Hand Calculation in Beam Bending?

    This is the analytical working out. I substituted the value of 306mm ( the maximum length of the beam) to find the maximum deflection along the Z-axis. Which came out to be -2.39mm. But according to Ansys the average deflection is 0.3mm and the maximum deflection is 0.8mm. This is the Ansys Values.
  7. K

    Finding the torque required for telescopic cable mechanism

    Hi Berkeman and @Lnewqban, I have taken all your advice into account and slightly modified the design to minimise the bearing friction, I have increased the diameter of the second stage pulley and also introduced another pulley in the first stage to decrease the friction. I am learning a lot...
  8. K

    Finding the torque required for telescopic cable mechanism

    Do you think this cable arrangment will cause the elevation. I still have not considered about the co-axial design to decrease the bearing friction.
  9. K

    Finding the torque required for telescopic cable mechanism

    This is the sketch from the video, later in the video he replaces the pulley with a screw eye hook, I think that's is why he didn't have another hook in stage two.
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