Chinese Journal of Ship Research, Volume. 20, Issue 2, 329(2025)
Theoretical calculation method of hyperbolic rotating thin shell bending problem
Objective
In order to analyze the bending characteristics of a hyperbolic rotating thin shell, the complex two-dimensional mechanical problem is simplified into a one-dimensional bending problem based on Euler's Bernoulli beam theory.
Method
By analyzing the force and deformation characteristics of shells and belt beams, a structural mechanical model is established, and a double curvature rotating thin shell bending differential equation is obtained by combining the physical equation of plate and shell theory with the bending differential equation of a single-span beam. An empirical formula for typical stress is proposed and its accuracy verified by an ANSYS-based simulation.
Results
The results show that the error between the simulation and the formula is about 2.3%, which demonstrates the high accuracy of the formula in predicting typical stress and verifies the correctness of the theoretical calculation method.
Conclusion
The proposed method can provide useful references for the design and optimization of similar structure.
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Er ZHANG, Shaosong MIN, Lin HUA, Cong LIU, Guotao Chen. Theoretical calculation method of hyperbolic rotating thin shell bending problem[J]. Chinese Journal of Ship Research, 2025, 20(2): 329
Paper Information
Category: Ship Structure and Fittings
Received: Oct. 16, 2023
Accepted: --
Published Online: May. 15, 2025
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