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This study investigates the dynamic response of complex conical-cylindrical-conical shells reinforced with ring stiffeners, made from functionally graded materials (FGM), interacting with Pasternak and Winkler foundation models. Vibration analysis is conducted using the Continuous Element Method (CEM) or Dynamic Stiffness Method, incorporating the First-Order Shear Deformation Theory (FSDT). The study explores the influence of varying FGM properties and foundation parameters on natural frequencies of the structures. Numerical simulations confirm the advantages of the CEM, emphasizing its precision, efficient data storage capabilities, and easily applicability to medium and high-frequency analyses as well as for studying complex structures.

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Vibration Study of Complex Functionally Graded Material Ring-Stiffened Shells on Winkler–Pasternak Foundation

  • 会议论文

  • 发表日期：

    2026年

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  • Nguyen Manh Cuong,
  • Nguyen Quoc Hung,
  • Nguyen Tuan Hai

摘要

This study investigates the dynamic response of complex conical-cylindrical-conical shells reinforced with ring stiffeners, made from functionally graded materials (FGM), interacting with Pasternak and Winkler foundation models. Vibration analysis is conducted using the Continuous Element Method (CEM) or Dynamic Stiffness Method, incorporating the First-Order Shear Deformation Theory (FSDT). The study explores the influence of varying FGM properties and foundation parameters on natural frequencies of the structures. Numerical simulations confirm the advantages of the CEM, emphasizing its precision, efficient data storage capabilities, and easily applicability to medium and high-frequency analyses as well as for studying complex structures.