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 |
|---|---|
| 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 |
Fingerprint
ASJC Scopus subject areas
- Engineering(all)
Cite this
Yoshimura, T., & Hosoya, N. (2000). FRF estimation on rotational degrees of freedom of structures. Proceedings of the International Modal Analysis Conference - IMAC, 2, 1667-1671.