Dynamic optimization analysis of hydraulic pipeline system based on a developed response surface method

Abstract

When designing a complex pipeline with long distance and multi-supports for offshore platform, it is necessary to analyze the vibration characteristics of the complex pipeline system to ensure that there is no harmful resonance in the working conditions. Therefore, the optimal layout of support is an effective method to reduce the vibration response of hydraulic pipeline system. In this paper, a developed dynamic optimization method for the complex pipeline is proposed to investigate the vibration characteristics of complex pipeline with multi-elastic supports. In this method, the Kriging response surface model between the support position and pipeline is established. The position of the clamp in the model is parameterized and the optimal solution of performance index is obtained by genetic algorithm. The number of clamps and the interval between clamps are considered as the constraints of layout optimization, and the optimization objective is the natural frequencies of pipeline. Taking a typical offshore pipeline as example to demonstrate the effectiveness of the proposed method, the results show that the vibration performance of the hydraulic pipeline system is distinctly improved by the optimization procedure, which can provide reasonable guidance for the design of complex hydraulic pipeline system.

Dynamic calculation and optimization design of arbitrary planar branch piping system

“…RSM, also known as surrogate model or meta model, is an approximate model that can replace the original time-consuming and high-precision model in engineering analysis and design. In recent years, the RSM has been applied in many fields (Xiao et al, 2020; Zhang et al, 2020; Qu et al, 2020). For example, a developed dynamics optimization method was proposed by Qu et al (2020) to investigate the piping system vibration characteristics with multi-elastic supports, in which the Kriging RSM between the support positions and the piping system was established.…”

“…In recent years, the RSM has been applied in many fields (Xiao et al, 2020;Zhang et al, 2020;Qu et al, 2020). For example, a developed dynamics optimization method was proposed by Qu et al (2020) to investigate the piping system vibration characteristics with multi-elastic supports, in which the Kriging RSM between the support positions and the piping system was established. The RSM optimization design methods can usually be divided into two types (Wang, 2017).…”