6.1. Dynamic analysis includes

Try these first

1. 1.

   Define dynamic analysis in your own words.

   Hint

   Think about how forces behave differently in motion than at rest.

2. 2.

   What is the purpose of using D’Alembert’s Principle?

   Hint

   Recall what fictitious forces represent.

3. 3.

   What is dynamic analysis primarily concerned with?

   • Static forces
   • Inertial forces
   • Thermal forces

   Hint

   Think about what forces affect systems in motion.

4. 4.

   True or False: D’Alembert’s Principle allows us to treat a dynamic system as if it were static.

   • True
   • False

   Hint

   Consider how dynamic problems can be simplified.

5. 5.

   Given a slider-crank mechanism with a crank radius of 0.15m, and a piston mass of 8 kg, if the theta angle is 30 degrees and the crank rotates at 2 radians/second, calculate the piston's acceleration.

   Hint

   Break down the components and calculate them separately.

6. 6.

   A four-bar linkage is under motion. If internal torques balance out at 20Nm, but external torques from a motor input 65Nm, how much torque must the system provide to maintain equilibrium?

   Hint

   Consider how equilibrium affects the dynamics of the system.