《ISO-14695-CORR-1-2009.pdf》由会员分享,可在线阅读,更多相关《ISO-14695-CORR-1-2009.pdf(2页珍藏版)》请在三一文库上搜索。
1、ICS 17.160; 23.120 Ref. No. ISO 14695:2003/Cor.1:2009(E) ISO 2009 All rights reserved Published in Switzerland INTERNATIONAL STANDARD ISO 14695:2003 TECHNICAL CORRIGENDUM 1 Published 2009-03-01 INTERNATIONAL ORGANIZATION FOR STANDARDIZATION ORGANISATION INTERNATIONALE DE NORMALISATION Industrial fan
2、s Method of measurement of fan vibration TECHNICAL CORRIGENDUM 1 Ventilateurs industriels Mthode de mesure des vibrations des ventilateurs RECTIFICATIF TECHNIQUE 1 Technical Corrigendum 1 to ISO 14695:2003 was prepared by Technical Committee ISO/TC 117, Fans. Page 1, Normative references Replace the
3、 references to ISO 1940-1, ISO 5801 and ISO 14694, respectively with the following: ISO 1940-1, Mechanical vibration Balance quality requirements for rotors in a constant (rigid) state Part 1: Specification and verification of balance tolerances ISO 5801:2007, Industrial fans Performance testing usi
4、ng standardized airways ISO 14694:2003, Industrial fans Specifications for balance quality and vibration levels Page 6, Figure 1, Note Replace the third sentence of the note with the following: This figure is generally in accordance with Figure 44 a) of ISO 5801:2007 with the addition of a flexible
5、connection and resilient mounts between the fan and ducting. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=HP Monitoring/1111111164 Not for Resale, 04/09/2009 01:55:00 MDT -,-,- ISO 14695:2003/Cor.1:2009(E) 2 ISO 2009 All rights reserved Pag
6、e 6, Figure 2, Note Replace the fourth sentence of the note with the following: This figure is generally in accordance with that given in Figure B.2 of ISO 5801:2007, but with the addition of a flexible connection and resilient mounts between the fan and the outlet cowl. Page 21, A.3.2 Replace Equat
7、ion (A.7) with the following: 1/2 2 2 2 2 14 = (1)(1) 2 + z CBB r (A.7) Page 22, A.3.2 Replace the second paragraph with the following: In general, the effect of coupling is to increase the separation in frequency between the decoupled rocking and sway modes. Thus, the decoupled mode approach will t
8、end to under-predict the rocking mode and over-predict the sway mode coupled frequencies which result when the vertical offset is not negligible. Page 22, A.3.3, c) 1) Replace Equation (A.11) with the following: 1/2 V V 1 2 = k f m (A.11) Page 24, A.3.3, c) 4) In list item c) 4), before Equation (A.
9、16), replace the first part of the paragraph, with the following: 4) Rocking mode (zx plane). If the one-third ratio between the vertical centre of gravity and the mount separation is not exceeded then the frequency of the rotational mode of vibration in the zx plane, fR, in hertz (Hz), given below is approximately 5 % less than the corresponding frequency f2 obtained by coupled mode analysis (see A.3.2): Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=HP Monitoring/1111111164 Not for Resale, 04/09/2009 01:55:00 MDT -,-,-
链接地址:https://www.31doc.com/p-3774938.html