Wind load is one of occasional load which is caused against the pipe; the force that occurs can be calculated using equation below. Magnitude of the wind load is the result of momentum wind on pipe. Wind load is modeled as uniform force in the direction of wind along pipe. Wind force that occurs can be calculated by using Bernoulli equation as follow:
F = Cd D q / 1000
Where:
F = win load (N/m)
Cd = drag coefficient
D = outside diameter of pipe include insulation (mm)
q = dynamic pressure (N/m2)
Occasional load that occurs in piping system in certain cases will have similar properties with sustain load. Therefore stress analysis of support will be important step to get distribution of stress along pipe. However, the optimum support position to withstand occasional load is not always same for sustain load. In the design process, compromise design is required so support can hold both load type, sustain load and occasional load. For example, the rigid support can be used to hold dynamic load but will reduce flexibility of pipe, so need other type of support. The snubber support type is suitable support and generally used to hold both type of loading.