Calculating the Frequency of Oscillation for an Oscillating Gate with Spring

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SUMMARY

The frequency of oscillation for the gate can be calculated using the formula for a torsional spring system. Given the mass of 2 kg, a moment of inertia of 0.36 kg·m², and a torsional spring stiffness of 18.2 Nm/rad, the angular frequency (ω) can be determined using the equation ω = √(k/I), where k is the spring constant and I is the moment of inertia. Substituting the values, the frequency of oscillation is approximately 2.2 rad/s.

PREREQUISITES
  • Understanding of rotational dynamics
  • Familiarity with torsional spring mechanics
  • Knowledge of moment of inertia calculations
  • Basic proficiency in solving differential equations
NEXT STEPS
  • Study the principles of torsional oscillators
  • Learn how to derive the equations of motion for rotational systems
  • Explore the effects of damping on oscillatory motion
  • Investigate the relationship between angular frequency and physical parameters in oscillating systems
USEFUL FOR

Mechanical engineers, physics students, and anyone involved in the design or analysis of oscillating systems, particularly those utilizing torsional springs.

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I need to find the frequency with which the gate will swing in Rad/s. I know the mass is 2kg, the moment of inertia about the hinges is 0.36kgm2 and that the torsional spring stiffness is 18.2Nm/rad. A person pushes the gate open to 90degrees and then it's released. Damping is negligible. If you could just point me in the right direction i'd like to give it a go on my own but i just don't know where to start.
 
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it is very similar to [itex]F=ma[/itex] for normal springs and masses

[itex]I\ddot\theta = ??[/itex]

Can you complete the equation? (I is inertia)
 

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