Candy_Questions_12_Post

Candy_Questions_12_Post - 34. Given: A 2.8 cm 5.0 cm...

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34 . Given : A 2.8 cm × 5.0 cm rectangular rod is stretched from its initial length of 0.4000 m to a length of 0.4005 m. The modulus of elasticity of the rod material is 95.0 GPa (gigapascals). Poisson’s ratio of the rod material is 0.333. A strain gage with a strain gage factor of 2.10 is glued to the rod before it is stretched, aligned with the direction of stretching. A quarter bridge Wheatstone bridge circuit is constructed, with the strain gage as resistor R 1 . The strain gage is balanced before the rod is stretched. The bridge supply voltage is 7.50 V. To do : Calculate the output voltage (in mV) of the bridge when the rod is stretched. Give your answer to three significant digits. Solution : 35a . Given : The following second-order ODE: () 2 2 43 2 dy d y yx t dt dt ++ = The forcing function is a step function (sudden jump): x ( t ) = 0 for t < 0 x ( t ) = 4 for t > 0 To do : Calculate the equilibrium response . Solution : 35b . Given : [same as previous problem] The following second-order ODE: 2 2 2 y t dt dt = The forcing function is a step function (sudden jump): x (
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Candy_Questions_12_Post - 34. Given: A 2.8 cm 5.0 cm...

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