摘要
This paper is devoted to the two-dimensional nonlinear modeling of the fluid-solid interaction (FSI) between fabric and air flow, which is based on the Automatic Incremental Dynamic Nonlinear Analysis (AIDNA)-FSI program in order to study the dynamic bending features of fabrics in a specific air flow filed. The computational fluid dynamics (CFD) model for flow and the finite element model (FEM) for fabric was set up to constitute an FSI model in which the geometric nonlinear behavior and the dynamic stress-strain variation of the relatively soft fabric material were taken into account. Several FSI cases with different time-dependent wind load and the model frequency analysis for fabric were carried out. The dynamic response of fabric and the distribution of fluid variables were investigated. The results of numerical simulation and experiments fit quite well. Hence, this work contributes to the research of modeling the dynamic bending behavior of fabrics in air field.
This paper is devoted to the two-dlmensional nonlinear modeling of the fluid-solid interaction （FSI） between fabric and air flow, which is based on the Automatic Incremental Dynamic Nonlinear Analysis （AIDNA）.FSI program in order to study the dynamic bending features of fabries in a specific air flow flied. The computational fluid dynamics （CFD） model for flow and the finite dement model （FEM） for fabric was set up to constitute an FSI model in which the geometric nonlinear behavior and the dynamic stress.strain variation of the relatively soft fabric material were taken into account. Several FSI cases with different time-dependent wind load and the model frequency analysis for fabric were carried out. The dynamic response of fabric and the distribution of fluid variables were investigated. The results of numerical simulation and experiments fit quite well. Hence, this work contributes to the research of modeling the dynamic bending behavior of fabrics in air fidd.
基金
National Natural Science Foundations of China(No.50803010,No.60904056)
