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 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Engineering(all)
Cite this
FRF estimation on rotational degrees of freedom of structures. / Yoshimura, Takuya; Hosoya, Naoki.
In: Proceedings of the International Modal Analysis Conference - IMAC, Vol. 2, 2000, p. 1667-1671.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - FRF estimation on rotational degrees of freedom of structures
AU - Yoshimura, Takuya
AU - Hosoya, Naoki
PY - 2000
Y1 - 2000
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=0033879632&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0033879632&partnerID=8YFLogxK
M3 - Article
VL - 2
SP - 1667
EP - 1671
JO - Proceedings of the International Modal Analysis Conference - IMAC
JF - Proceedings of the International Modal Analysis Conference - IMAC
SN - 1046-6770
ER -