High Quality Rope Hamak Swing with New Full Support Cushion

If the system composed of man and swing is regarded as a pendulum, the cycloid is fixed at point O, and the expansion and contraction of the cycloid itself and the mass of the cycloid are ignored. Imagine that people squat quickly at the maximum deflection angle and stand quickly at the lowest point. The squatting and standing processes are completed in an instant. The squatting and standing of the human body lead to the rise and fall of the center of mass of the system, which is equivalent to the change of effective swing length. In this way, we can abstract the system composed of human and swing into a variable length original pendulum, which is called the variable length original pendulum model.

Swing is not only a wonderful competitive sport, but also can exercise people's will and cultivate courage. At the same time, it is also very beneficial to the healthy development of human physiological functions.

Swing can make people feel relaxed and happy, exercise their body and will, and cultivate their courage. It has become a special activity for children, and is often found near the playground of kindergartens and primary schools, or in parks and amusement parks.