14.1.2. Natural Frequency Definition

Try these first

1. 1.

   What is the definition of natural frequency?

   Hint

   Think about how things vibrate on their own.

2. 2.

   What factors influence natural frequency?

   Hint

   Consider the structure's weight and material stiffness.

3. 3.

   What is the natural frequency of a system?

   • The rate of oscillation with external force
   • The rate of oscillation without external forces
   • The frequency of applied loads

   Hint

   Remember, it is about the system’s inherent properties.

4. 4.

   True or False: Increasing stiffness will decrease the natural frequency of a structure.

   • True
   • False

   Hint

   Consider how stiff materials behave in oscillations.

5. 5.

   A building has a mass of 500 kg and a stiffness of 2000 N/m. Calculate the natural frequency.

   Hint

   Make sure to follow the steps of substitution carefully.

6. 6.

   Discuss the practical implications of resonance in buildings during an earthquake. What preventative measures can be taken?

   Hint

   Provide examples of engineering techniques used in current construction.