|
| Material Parameter Identification and Dynamic Sensitivity of Metal Substrate Composite Conical Shell |
| Received:February 14, 2023 Revised:March 20, 2023 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2023.07.006 |
| KeyWord:metal substrate composite conical shell modal parameter identification sensitivity |
| Author | Institution |
| WANG Jun-yao |
Institute of Systems Engineering, Chinese Academy of Engineering Physics, Sichuan Mianyang , China;Sichuan Key Laboratory of Impact and Vibration of Engineering Materials and Structures, Sichuan Mianyang , China |
| CHEN Hong-yong |
Institute of Systems Engineering, Chinese Academy of Engineering Physics, Sichuan Mianyang , China;Sichuan Key Laboratory of Impact and Vibration of Engineering Materials and Structures, Sichuan Mianyang , China |
| SHI Xian-jie |
Institute of Systems Engineering, Chinese Academy of Engineering Physics, Sichuan Mianyang , China |
| ZUO Peng |
Institute of Systems Engineering, Chinese Academy of Engineering Physics, Sichuan Mianyang , China;Department of Modern Mechanics, University of Science and Technology of China, Hefei , China |
|
| Hits: |
| Download times: |
| Abstract: |
| The work aims to study the dynamic characteristics of carbon phenolic composite conical shell with metal as the substrate, and establish the optimized parameter identification method of composite based on modal experiment. A dynamic model of metal substrate composite conical shell structure was established to characterize the effect of material parameters of each layer on the dynamic characteristics of the structure. The free modal experiment of typical aluminum alloy-adhesive layer-carbon phenolic conical shell was carried out. Based on the modal experimental results and numerical simulation, the parameter identification of composite materials was carried out. The global optimal solution of material parameters was obtained by response surface optimization method, and the sensitivity analysis of structural mode to composite material parameters was carried out. Based on Latin hypercube sampling and polynomial proxy model, an efficient proxy model for multi-layer composite conical shells was established. For [0, 90]S laminated composite conical shell structure, the first five groups of modal frequency parameters were most sensitive to E11 and least sensitive to v23. The effect of shear modulus was between tensile modulus and Poisson's ratio. The dynamic model and parameter identification method for anisotropic isotropic-orthotropic multi-layer composite conical shell are established, which can provide reference for the design of such structures. |
| Close |
|
|
|