Pipe support structure

A method for assembling a pipe support structure for supporting a pipe supported at a first clamp position and a second clamp position, the pipe having a fluid passage formed therein to allow a fluid at a high temperature to pass therethrough, and made of a resilient material, the pipe support structure including a retaining member for resiliently retaining the outer peripheral portion at, at least one of the first clamp position and the second clamp position, the pipe having an inclined portion inclined with respect to a horizontal plane perpendicular to the gravity direction, and a bent portion having a predetermined radius of curvature, the inclined portion and the bent portion being disposed between the first clamp position and the second clamp position, wherein the retaining member has a predetermined spring constant and a predetermined attenuation coefficient, the pipe is subjected to a Coriolis force and having a heat expansion amount caused by the Coriolis force when the fluid passage allows the fluid at the high temperature, and the retaining member having a reaction force acting against the Coriolis force, the method comprising:

• providing the retaining member, which is set to have such the spring constant and such the attenuation coefficient, at such a position of at least one of the first clamp position and the second clamp position and providing the bent portion having such a shape such that the reaction force of the retaining member generated in response to the Coriolis force generated on the pipe acts to suppress the heat expansion amount caused by the Coriolis force from being increased when the fluid passage allows the fluid at the high temperature, wherein:
• when the Coriolis force is represented by Fc, the fluid angular speed of the fluid passing through the fluid passage is represented by ω , and the time is represented by t, the Coriolis coercive force fc temporally varying in response to the vibration of the pipe is given by fc(t)=Fc sin ωt,
• when the reaction force caused on the retaining member against the Coriolis force Fc is represented by Fr, and the clamp reaction force caused on the retaining member and temporally varying in response to the Coriolis coercive force fc(t) is represented by fr(t), the clamp reaction force fr(t) is given by fr(t)=Fr sin(ω−φ), and
• when the coefficient to be determined in response to the ratio of the clamp reaction force fr(t) with respect to the Coriolis coercive force fc(t) is “k”, the first clamp position, the second clamp position, the shape of the bent portion, the spring constant, and the attenuation coefficient are set to have the coefficient “k” in the following equation (1) approach the number of 1
• fc(t)=−kfr(t) (1).