Arrangement for attenuating vibration of a roll assembly

Arrangement for attenuating vibration of a roll assembly

An arrangement of attenuating the vibration in a roll assembly of a fiber web machine, in which assembly the roll (10) being rotatably suspended at its end on bearings in bearing housings (13a, 13b), and the bearing housings being supported on the frame or the foundation of the machine via viscoelas...

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Hauptverfasser: PENTTILA KIMMO, JORKAMA MARKO
Format: Patent
Sprache:chi ; eng
Schlagworte:
CONVEYING
HANDLING THIN OR FILAMENTARY MATERIAL
HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES
PACKING
PERFORMING OPERATIONS
STORING
TRANSPORTING
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creator PENTTILA KIMMO
JORKAMA MARKO
description An arrangement of attenuating the vibration in a roll assembly of a fiber web machine, in which assembly the roll (10) being rotatably suspended at its end on bearings in bearing housings (13a, 13b), and the bearing housings being supported on the frame or the foundation of the machine via viscoelastic intermediate piece or pieces (21a, 21b). According to the invention the loss factor of the intermediate piece is greater than 0.1 at the normal operating conditions of the roll at a frequency range, which is +-10 % calculated from the lowest bending eigenfrequency of the roll, and in the each end of the rolthe spring constant of the total influence of the intermediate piece or pieces is in the range of 0.04 GN/m - lGN/m.
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According to the invention the loss factor of the intermediate piece is greater than 0.1 at the normal operating conditions of the roll at a frequency range, which is +-10 % calculated from the lowest bending eigenfrequency of the roll, and in the each end of the rolthe spring constant of the total influence of the intermediate piece or pieces is in the range of 0.04 GN/m - lGN/m.</description><language>chi ; eng</language><subject>CONVEYING ; HANDLING THIN OR FILAMENTARY MATERIAL ; HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES ; PACKING ; PERFORMING OPERATIONS ; STORING ; TRANSPORTING</subject><creationdate>2009</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20090624&amp;DB=EPODOC&amp;CC=CN&amp;NR=101466625A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25562,76317</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20090624&amp;DB=EPODOC&amp;CC=CN&amp;NR=101466625A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>PENTTILA KIMMO</creatorcontrib><creatorcontrib>JORKAMA MARKO</creatorcontrib><title>Arrangement for attenuating vibration of a roll assembly</title><description>An arrangement of attenuating the vibration in a roll assembly of a fiber web machine, in which assembly the roll (10) being rotatably suspended at its end on bearings in bearing housings (13a, 13b), and the bearing housings being supported on the frame or the foundation of the machine via viscoelastic intermediate piece or pieces (21a, 21b). According to the invention the loss factor of the intermediate piece is greater than 0.1 at the normal operating conditions of the roll at a frequency range, which is +-10 % calculated from the lowest bending eigenfrequency of the roll, and in the each end of the rolthe spring constant of the total influence of the intermediate piece or pieces is in the range of 0.04 GN/m - lGN/m.</description><subject>CONVEYING</subject><subject>HANDLING THIN OR FILAMENTARY MATERIAL</subject><subject>HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES</subject><subject>PACKING</subject><subject>PERFORMING OPERATIONS</subject><subject>STORING</subject><subject>TRANSPORTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2009</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLBwLCpKzEtPzU3NK1FIyy9SSCwpSc0rTSzJzEtXKMtMKgKy8vMU8tMUEhWK8nNyFBKLi1Nzk3IqeRhY0xJzilN5oTQ3g6Kba4izh25qQX58anFBYnJqXmpJvLOfoYGhiZmZmZGpozExagAkEi55</recordid><startdate>20090624</startdate><enddate>20090624</enddate><creator>PENTTILA KIMMO</creator><creator>JORKAMA MARKO</creator><scope>EVB</scope></search><sort><creationdate>20090624</creationdate><title>Arrangement for attenuating vibration of a roll assembly</title><author>PENTTILA KIMMO ; JORKAMA MARKO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN101466625A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2009</creationdate><topic>CONVEYING</topic><topic>HANDLING THIN OR FILAMENTARY MATERIAL</topic><topic>HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES</topic><topic>PACKING</topic><topic>PERFORMING OPERATIONS</topic><topic>STORING</topic><topic>TRANSPORTING</topic><toplevel>online_resources</toplevel><creatorcontrib>PENTTILA KIMMO</creatorcontrib><creatorcontrib>JORKAMA MARKO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>PENTTILA KIMMO</au><au>JORKAMA MARKO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Arrangement for attenuating vibration of a roll assembly</title><date>2009-06-24</date><risdate>2009</risdate><abstract>An arrangement of attenuating the vibration in a roll assembly of a fiber web machine, in which assembly the roll (10) being rotatably suspended at its end on bearings in bearing housings (13a, 13b), and the bearing housings being supported on the frame or the foundation of the machine via viscoelastic intermediate piece or pieces (21a, 21b). According to the invention the loss factor of the intermediate piece is greater than 0.1 at the normal operating conditions of the roll at a frequency range, which is +-10 % calculated from the lowest bending eigenfrequency of the roll, and in the each end of the rolthe spring constant of the total influence of the intermediate piece or pieces is in the range of 0.04 GN/m - lGN/m.</abstract><oa>free_for_read</oa></addata></record>
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subjects CONVEYING
HANDLING THIN OR FILAMENTARY MATERIAL
HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES
PACKING
PERFORMING OPERATIONS
STORING
TRANSPORTING
title Arrangement for attenuating vibration of a roll assembly
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