Investigation of Using Hybrid Structure for the Pressure Tank Design

• Main Authors: Yaocheng Wang, 王曜呈
• Other Authors: Huiwen Hu
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/51687830221342499359

碩士 === 國立屏東科技大學 === 車輛工程系所 === 99 === The purpose of this thesis is to investigate the design and fabrication of pressure tank by using hybrid structural model which consists of aluminum liner and fiber-reinforced plastics. A pressure tank is first fabricated by welding the seamless aluminum tube and bulkheads. Carbon fiber is then used to wrap the aluminum liner by using a winding machine. This hybrid structure exhibits an anisotropic material property which is critical to finite element modeling of composite laminates. A finite element model (FEM) of filament wound pressure tank is established. Experimental modal analysis (EMA) is adopted for the validation of the FEM by using inverse method. The natural frequencies and the associated mode shapes obtained from finite element analysis are compared with those of from EMA. Good correlation of these modal parameters between FEA and EMA verifies that the distributed mass and stiffness of the FEM are equivalent to the real structure of pressure tank. The validated FEM is then qualified for the further analysis. The Strain analysis and hydraulic test are also performed to evaluate the strength of pressure tank.