Abstract
In conventional vibration testing, frequency response functions (FRFs) are measured only on translational degrees of freedom. This paper presents a new estimation method of rotational FRFs. In the proposed method a T-shaped block is attached to the measurement point. The block is excited by conventional impact hammer; the inner force and the response of the connection point including rotational DOFs are estimated; and finally the FRFs including rotational DOFs at the connection point of the structure is obtained. The feasibility of the method is investigated experimentally by applying it to a beam structure.
Original language | English |
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Pages (from-to) | 1667-1671 |
Number of pages | 5 |
Journal | Proceedings of the International Modal Analysis Conference - IMAC |
Volume | 2 |
Publication status | Published - 2000 Jan 1 |
Externally published | Yes |
ASJC Scopus subject areas
- Engineering(all)