Exact and Direct Modeling Technique for Rotor-Bearing Systems with Arbitrary Selected Degrees-of-Freedom | Zendy

Shilin Chen | Zendy; Michel Géradin | Zendy

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Exact and Direct Modeling Technique for Rotor-Bearing Systems with Arbitrary Selected Degrees-of-Freedom

Author(s) -

Shilin Chen,

Michel Géradin

Publication year - 1994

Publication title -

shock and vibration

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.418

H-Index - 45

eISSN - 1875-9203

pISSN - 1070-9622

DOI - 10.1155/1994/189657

Subject(s) - degrees of freedom (physics and chemistry) , stiffness , direct stiffness method , rotor (electric) , dimension (graph theory) , stiffness matrix , bearing (navigation) , matrix (chemical analysis) , transfer matrix , control theory (sociology) , damping matrix , mathematics , computer science , engineering , structural engineering , physics , mechanical engineering , artificial intelligence , pure mathematics , quantum mechanics , computer vision , materials science , control (management) , composite material

An exact and direct modeling technique is proposed for modeling of rotor-bearing systems with arbitrary selected degrees-of-freedom. This technique is based on the combination of the transfer and dynamic stiffness matrices. The technique differs from the usual combination methods in that the global dynamic stiffness matrix for the system or the subsystem is obtained directly by rearranging the corresponding global transfer matrix. Therefore, the dimension of the global dynamic stiffness matrix is independent of the number of the elements or the substructures. In order to show the simplicity and efficiency of the method, two numerical examples are given.

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