Dynamic Model and Characteristic Analysis of Viscosity-Ultraelasticity for Bionic Vascular Network

Abstract

Due to the large volume of pipeline transportation, low cost, safety and the reliability, and automatic control, it is widely used in many fields of industrial development and human daily life. Most of the traditional hydraulic pipelines are steel pipes, and their structure is simple. High resistance and high consumption during transportation are not conducive to the sustainable development of society. However, the human vascular system is intricate and has excellent mechanical properties. Built on the review, research on the fluid-solid coupling characteristics of a single bionic pipeline and piping system was carried out. In order to simulate the mechanical characteristics of a fluid conveying pipeline, a fluid-structure coupling model of equation 14 of a single pipeline and the transfer matrix of the pipeline system were established. The mechanical characteristics of the pipeline are studied, and the formula is calculated. The simulation analysis shows that the axial force and flow resistance decrease first and then stabilize with the increase of frequency. Finally, the experimental verification and the results show that the method is both reasonable and effective, because the simulation curve and the experimental curve are consistent in trend.

Bionic Design and Optimization on the Flow Channel of a Legged Robot Joint Hydraulic Drive Unit Based on Additive Manufacturing

“…Misra et al [ 35 ] determined that the shear stress of the arterial wall decreased with the increase in the bifurcation artery radius ratio in the process of arterial flow, and when the bifurcation angle increased, the wall shear stress became larger, which provided theoretical support for the study of the bifurcation angle of the bionic flow channel. Chen et al [ 36 ] established a dynamic model of bionic pipelines by simulating the structure and mechanical properties of blood vessels and built a bionic pipeline test platform. The superiority of the bionic pipeline was verified by orthogonal testing.…”

Dynamic Effect of Fluid–Structure Interaction and Modal Analysis of Crude–Pipeline Interaction System Considering the Fluctuating Pressure of Medium

“…Zhang et al proposed a model for quantitative prediction and analysis of the location and severity of hydrate deposition in pipelines ( 20 ). Chen et al explored the FSI characteristics of individual bionic pipes and pipe systems based on the mechanical properties of the human vascular system, analyzed the mechanical properties of the pipes, and verified the rationality and effectiveness of the method experimentally ( 21 ). Hu et al conducted numerical simulation and hammering tests to investigate the vibration frequencies and types of pipes with different lengths and fixation methods ( 22 ).…”