Due to manufacturing errors and material deteriorations in the metal rubber of clamps. the clamp stiffness of the pipeline is uncertain. This paper presents a non-intrusive multi-dimensional Chebyshev polynomial approximation method (M-CPAM) to evaluate uncertain characteristics of the frequency response function (FRF) of the clamp-pipeline system (CPS). where the clamp stiffness para... https://coers.shop/product-category/schoolwear/