See-Saw Simulation
A see-saw is a long plank supported in the middle with the persons seating at each end and moving up and down. It is often found in children’s playgrounds. An example is shown here.
The simulation model of the see-saw was developed by BondSim program in the form of Bond Graphs. The model follows a physical modelling approach in which the main physical objects the see-saw consists of are shown in the model and are connected in the similar way. The model was simulated during 10s. After initial inclination of 1 radian (approximately 57°) the see-saw was left swinging under the action of the weight of the seating persons. Note the mass of body2 (a parent) was much larger than that of body1 (a boy or girl). The swinging amplitudes are steadily dropping due to damping by the friction existing in the system.
