The dynamic modeling of the propulsion system is of great significance to the overall optimization and vibration control of the airship. Based on the finite element method and the energy equivalence method, this paper proposed an equivalent model of the propulsion stent structure considering the flexible constraints of the capsule. Firstly, the finite element method was used to derive a set of six-degree-of-freedom capsule constraint stiffness coefficients, and an equivalent model of the propulsion stent was established. Secondly, the verification of the equivalent stent model was carried out. Then an accurate dynamic model of the propulsion stent considering the flexible constraints of the capsule was established. The vibration characteristics of the equivalent model are in good agreement with the finite element model, which indicates that the equivalent model has good accuracy.
Vibration analysis of propulsion stent considering flexible constraints of airship capsule
International Conference on Mechanisms and Robotics (ICMAR 2022) ; 2022 ; Zhuhai,China
Proc. SPIE ; 12331 ; 1233126
10.11.2022
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Vibration analysis of propulsion stent considering flexible constraints of airship capsule
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