碳纤维复合材料(CFC)板在非结构传输线建模(UTLM)方法中的扩展能力模型
Extended Capability Models for Carbon Fiber Composite (CFC) Panels in the Unstructured Transmission Line Modelling (UTLM) Method
摘要:
一个有效的模型,单层和多层薄板,包括那些使用碳纤维复合材料(CFC)材料形成的,被纳入传输线建模(TLM)方法。薄板模型是一个一维(1D)的基础上的余切和余割函数,用于描述在频域中的导纳矩阵的解析展开,然后将这些转换到时域通过使用数字滤波器理论和逆Z变换。该模型,这是扩展到允许材料的各向异性,在1D TLM代码内执行。并且,首次将二维(2D)薄表面模型嵌入非结构化三维(3D)TLM代码中。该方法是通过使用它来研究一些典型的结构与解析解,并从文献中取得的结果进行验证。然后,它被用来调查在一个实际的弯曲的航空航天相关的结构中的碳纤维复合材料的屏蔽效能。
英文摘要:
An effective model of single and multilayered thin panels, including those formed using carbon fiber composite (CFC) materials, is incorporated into the Transmission Line Modeling (TLM) method. The thin panel model is a one-dimensional (1D) one based on analytical expansions of cotangent and cosecant functions that are used to describe the admittance matrix in the frequency domain; these are then converted into the time domain by using digital filter theory and an inverse Z transform. The model, which is extended to allow for material anisotropy, is executed within 1D TLM codes. And, for the first time, the two-dimensional (2D) thin surface model is embedded in unstructured three-dimensional (3D) TLM codes. The approach is validated by using it to study some canonical structures with analytic solutions, and against results taken from the literature. It is then used to investigate shielding effectiveness of carbon fiber composite materials in a practical curved aerospace-related structure.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。