Friction stiffness problem
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This post was last edited by superstar99_1 on 2024-1-5 08:00. The friction stiffness specified in the guidelines is a fixed value; why not use the actual stiffness of the pipe? There must be some error between the friction force calculated this way and the actual value. Seeking advice. Also, will the pipe friction stiffness in the C2 calculation process converge to the actual pipe stiffness?
Friction stiffness is commonly used to simulate the contact behavior between a pipeline or structure and its supporting surface. The friction stiffness given in guidelines or design specifications may be a recommended value or an empirical approximation, used to simplify the design and calculation process. If the actual pipe stiffness is used to calculate friction, the calculation will be more accurate, but it will also be more complex. In practical engineering, a balance is often sought between computational accuracy and computational complexity. A fixed friction stiffness value can provide sufficient conservatism in the design, ensuring that the design results remain within safe and reasonable limits. In practical applications, if the requirements of the project demand higher precision, or when the performance of the structure is more sensitive to friction properties, more accurate methods can be used to calculate the friction stiffness and friction force. .