Corrigendum to “Damping performance of two

Journal of Sound and Vibration 333 (2014) 3580–3582
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Journal of Sound and Vibration
journal homepage: www.elsevier.com/locate/jsvi
Corrigendum
Corrigendum to “Damping performance of two simple
oscillators coupled by a dissipative connection”
[J. Sound Vibr. (2014) 2359–2377]
Vincenzo Gattulli a,n, Francesco Potenza b, Marco Lepidi c
a
b
c
Dipartimento di Ingegneria Civile, Edile-Architettura, Ambientale, University of L'Aquila, 67100 L'Aquila, Italy
CERFIS, Centro di Ricerca e Formazione in Ingegneria Sismica, University of L'Aquila, Italy
Dipartimento di Ingegneria Civile, Chimica e Ambientale, via Montallegro 1, Genova 16145, Italy
The authors regret that in the original published version of this article a transcription error affected Eq. (9) on p. 6939.
The corrected version of the equation is now provided below:
!1=2
ρð1 β2 Þð1 ρ2 β2 Þ
ρ
ηd
ηd 1=2
2
2
ηd ¼
1
þη
;
γ
2
β
¼
þβ
þ
ð1
þ
η
Þ
þ
d
d
d
1 þρ
ρ
ρ
ð1 þ ρÞ2 ð1 þ ρβ2 Þ
Unfortunately some figures have been produced according to the incorrect formula. The correct versions of Figs. 4, 5 and 7
on p. 6940, 6941 and 6943, are presented below:
[Please replace with Fig. 4 file and use caption ‘Fig. 4. Loci of the design parameters ηd, γd for different oscillator pairs ρ, β:
(a), (d) 3D views, sections in (b) (e) ρ-plane, (c), (e) β-plane.’]
[Please replace with Fig. 5 file and use caption ‘Fig. 5. 3D views of the loci of the design parameters ηd, γd for 0 rβr2:
(a) existing solutions ηd 40 limited by bold curves, dashed curves bound the parameter space which corresponds to
overcritical damping in the system and (b) locus of design purely-viscous connection ηd ¼0, γd.’]
[Please replace with Fig. 7 file and use caption ‘Fig. 7. Design parameters charts for dissipative connection of two
oscillators defined through iso-ρ and iso-β curves: (a) KV-case and (b) Ma-case.’]
In the comments on the figures which have been changed above, and which can be found on p. 6941 line 10, the limit
values are:
3=2
ρ
ρ
ηd and γ d 2
1þρ
ð1 þ ρÞ
DOI of original article: http://dx.doi.org/10.1016/j.jsv.2013.08.037
n
Corresponding author. Tel.: þ39 0862 434511; fax: þ 39 0862434548.
E-mail address: [email protected] (V. Gattulli).
http://dx.doi.org/10.1016/j.jsv.2014.03.007
0022-460X/& 2014 Elsevier Ltd. All rights reserved.
V. Gattulli et al. / Journal of Sound and Vibration 333 (2014) 3580–3582
Fig. 4.
Fig. 5.
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V. Gattulli et al. / Journal of Sound and Vibration 333 (2014) 3580–3582
Fig. 7.
Tabel 1
Parameters of the compared systems with different dissipative connections.
On p. 6941 line 16, the comment “grows faster” has to be changed to “decreases faster”. On p. 6942 line 19, the sentence
“In the upper wing, the wider one,” has to be changed to “In the left wing”.
On p. 6942 line 27, the value β¼2.0 has to be changed to β¼2.5. Finally, on p. 6946, Table 1 has to be replaced with the
following table.
The authors would like to apologise for any inconvenience this may have caused to the readers of the journal.