Thermal‐structural dynamic behaviors of a beam under non‐Fourier thermal shock: Theorical and numerical analysis DOI Open Access
Peiqing Li, K.F. Wang, Baolin Wang

et al.

ZAMM ‐ Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Journal Year: 2025, Volume and Issue: 105(3)

Published: March 1, 2025

Abstract A coupled thermal‐structural dynamic model of a beam under non‐Fourier thermal shock and its approximate solution are developed in the present study. Meanwhile, analytical for thermally induced vibration (TIV) without structural coupling effects is also derived. The relaxation ratio (i.e., time to characteristic structure) introduced represent effect. inertia parameter, rotational parameter on TIV behaviors studied. Results indicate that with specific will exhibit unique “resonance” phenomenon, where frequencies close bending moment variation. Furthermore, influencing factors flutter (TF) explored, including ratio, heat flux incident angle, uncouple absolute rotation boundary conditions. It found TF stability not related larger difference between angle quasi‐static implies better stability. This work enhances understanding effect role behaviors, extending beyond Fourier‐based models.

Language: Английский

Thermal‐structural dynamic behaviors of a beam under non‐Fourier thermal shock: Theorical and numerical analysis DOI Open Access
Peiqing Li, K.F. Wang, Baolin Wang

et al.

ZAMM ‐ Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Journal Year: 2025, Volume and Issue: 105(3)

Published: March 1, 2025

Abstract A coupled thermal‐structural dynamic model of a beam under non‐Fourier thermal shock and its approximate solution are developed in the present study. Meanwhile, analytical for thermally induced vibration (TIV) without structural coupling effects is also derived. The relaxation ratio (i.e., time to characteristic structure) introduced represent effect. inertia parameter, rotational parameter on TIV behaviors studied. Results indicate that with specific will exhibit unique “resonance” phenomenon, where frequencies close bending moment variation. Furthermore, influencing factors flutter (TF) explored, including ratio, heat flux incident angle, uncouple absolute rotation boundary conditions. It found TF stability not related larger difference between angle quasi‐static implies better stability. This work enhances understanding effect role behaviors, extending beyond Fourier‐based models.

Language: Английский

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