There are a lot of recreational equipment, and the life of the amusement equipment is different. What are the reasons that affect the life of children's play equipment?

1) In the use of pleasure facilities, affected by stress, strain, almost all structures, parts of the shape and size are relative to change the fatigue load, their main failure is fatigue failure. Conventional fatigue strength design that: the assumption that the material does not have initial cracks, after a certain stress cycle, due to the accumulation of fatigue damage, the formation of cracks, cracks continue to expand under the stress cycle, until the full cross-section brittle fracture. The number of stress cycles before the formation of cracks, known as the crack-free life; crack formation until the fatigue fracture of the number of stress cycles, known as crack propagation life. The total life of the parts is the sum of the two. In general, the structural life of the football zone for trampoline is the basis for determining the natural life of the entire plant. Each stress cycle will cause a certain amount of damage to the parts, this damage can be accumulated; when the damage accumulated to the critical value, the parts will be fatigue damage. 2) In the use of recreational facilities, the other is the use of wear life. When the relative motion of the object, under the action of friction, the material on the friction surface is constantly consumed, such as the wear between the shaft and the bearing, the wear of the gear teeth, the relative movement between the guide wheel and the guide rail, And strength, when the wear exceeds the allowable limit, will lead to adult free zone trampoline park failure.