Measurement modes of the response time of a magneto-rheological fluid (MRF) for changing magnetic flux density
The response of a magneto-rheological fluid (MRF) to a change of magnetic flux density is investigated by using a commercial plate–plate magneto-rheometer MCR501 (Anton Paar GmbH) at constant shear rate. The instrument was modified to allow an online determination of the transient flux density in th...
Gespeichert in:
| Veröffentlicht in: | Rheologica acta 2007-05, Vol.46 (5), p.665-676 |
|---|---|
| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 676 |
|---|---|
| container_issue | 5 |
| container_start_page | 665 |
| container_title | Rheologica acta |
| container_volume | 46 |
| creator | LAUN, Hans Martin GABRIEL, Claus |
| description | The response of a magneto-rheological fluid (MRF) to a change of magnetic flux density is investigated by using a commercial plate–plate magneto-rheometer MCR501 (Anton Paar GmbH) at constant shear rate. The instrument was modified to allow an online determination of the transient flux density in the MRF. Both current and voltage imposition to the magneto-cell were applied by using a power operational amplifier to drive the electromagnet. Assuming a Maxwell behavior with switching time λ and a linear increase in shear stress with flux density, analytic relations for the transient shear stress are derived for sinusoidal and single exponential flux densities vs time. True switching times of a few milliseconds are only obtained if the low pass filter in the original MCR501 torque signal is surpassed by a firmware allowing a sampling rate of 0.1 ms. For a sinusoidal flux density, the switching time is derived from the modulation depth of the shear stress. An upper bound of λ |
| doi_str_mv | 10.1007/s00397-006-0155-6 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_2262012312</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2262012312</sourcerecordid><originalsourceid>FETCH-LOGICAL-c303t-8c8cb83e9a009c535fc618d596059399ef83e28f525ddda110c80d258e55b89e3</originalsourceid><addsrcrecordid>eNpFkEFLAzEQhYMoWKs_wFtABD1EJ0mzmz2KWBVaBNFzSLOTdstuUpMt2H_vlhaEgYF5780wHyHXHB44QPmYAWRVMoCCAVeKFSdkxCdSMa6EPiWjQVZsojg_Jxc5rwF4WZRiRMIcbd4m7DD0tIs1Zho97VdIE-ZNDBlp33S4H1ra2WXAPrK0wtjGZeNsS327bWp6N_-c3lMfE3UrG5ZNWB7Njds7fmmNITf97pKcedtmvDr2Mfmevnw9v7HZx-v789OMOQmyZ9ppt9ASKwtQOSWVdwXXtaoKUJWsKvSDKLRXQtV1bTkHp6EWSqNSC12hHJObw95Nij9bzL1Zx20Kw0kjRCGACznUmPCDy6WYc0JvNqnpbNoZDmaP1RywmgGr2WM1xZC5PW62efjfJxtck_-DWguhCyn_ABaYd3w</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2262012312</pqid></control><display><type>article</type><title>Measurement modes of the response time of a magneto-rheological fluid (MRF) for changing magnetic flux density</title><source>SpringerNature Journals</source><creator>LAUN, Hans Martin ; GABRIEL, Claus</creator><creatorcontrib>LAUN, Hans Martin ; GABRIEL, Claus</creatorcontrib><description>The response of a magneto-rheological fluid (MRF) to a change of magnetic flux density is investigated by using a commercial plate–plate magneto-rheometer MCR501 (Anton Paar GmbH) at constant shear rate. The instrument was modified to allow an online determination of the transient flux density in the MRF. Both current and voltage imposition to the magneto-cell were applied by using a power operational amplifier to drive the electromagnet. Assuming a Maxwell behavior with switching time λ and a linear increase in shear stress with flux density, analytic relations for the transient shear stress are derived for sinusoidal and single exponential flux densities vs time. True switching times of a few milliseconds are only obtained if the low pass filter in the original MCR501 torque signal is surpassed by a firmware allowing a sampling rate of 0.1 ms. For a sinusoidal flux density, the switching time is derived from the modulation depth of the shear stress. An upper bound of λ < 3 ms for a flux density of 0.8 T was found. For step coil current imposition of 1 T magnitude, switching times of 2.8 ms (start-up) and 1.8 ms (shutdown) allowed to fit the transient torque signal more than 2/3 of the total change. Finally, the effect of a sigmoidal characteristic on the switching time determination is addressed.</description><identifier>ISSN: 0035-4511</identifier><identifier>EISSN: 1435-1528</identifier><identifier>DOI: 10.1007/s00397-006-0155-6</identifier><identifier>CODEN: RHEAAK</identifier><language>eng</language><publisher>Berlin: Springer</publisher><subject>Coils ; Cross-disciplinary physics: materials science; rheology ; Electro- and magnetorheological fluids ; Exact sciences and technology ; Firmware ; Flux density ; Herbivores ; Low pass filters ; Magnetic flux ; Magnetism ; Magnetorheological fluids ; Material types ; Operational amplifiers ; Physics ; Response time ; Rheological measurements ; Rheological properties ; Rheology ; Shear rate ; Shear stress ; Shutdowns ; Switching ; Techniques and apparatus ; Torque ; Upper bounds</subject><ispartof>Rheologica acta, 2007-05, Vol.46 (5), p.665-676</ispartof><rights>2007 INIST-CNRS</rights><rights>Springer-Verlag 2007.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c303t-8c8cb83e9a009c535fc618d596059399ef83e28f525ddda110c80d258e55b89e3</citedby><cites>FETCH-LOGICAL-c303t-8c8cb83e9a009c535fc618d596059399ef83e28f525ddda110c80d258e55b89e3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>310,311,315,781,785,790,791,23935,23936,25145,27929,27930</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=18822863$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>LAUN, Hans Martin</creatorcontrib><creatorcontrib>GABRIEL, Claus</creatorcontrib><title>Measurement modes of the response time of a magneto-rheological fluid (MRF) for changing magnetic flux density</title><title>Rheologica acta</title><description>The response of a magneto-rheological fluid (MRF) to a change of magnetic flux density is investigated by using a commercial plate–plate magneto-rheometer MCR501 (Anton Paar GmbH) at constant shear rate. The instrument was modified to allow an online determination of the transient flux density in the MRF. Both current and voltage imposition to the magneto-cell were applied by using a power operational amplifier to drive the electromagnet. Assuming a Maxwell behavior with switching time λ and a linear increase in shear stress with flux density, analytic relations for the transient shear stress are derived for sinusoidal and single exponential flux densities vs time. True switching times of a few milliseconds are only obtained if the low pass filter in the original MCR501 torque signal is surpassed by a firmware allowing a sampling rate of 0.1 ms. For a sinusoidal flux density, the switching time is derived from the modulation depth of the shear stress. An upper bound of λ < 3 ms for a flux density of 0.8 T was found. For step coil current imposition of 1 T magnitude, switching times of 2.8 ms (start-up) and 1.8 ms (shutdown) allowed to fit the transient torque signal more than 2/3 of the total change. Finally, the effect of a sigmoidal characteristic on the switching time determination is addressed.</description><subject>Coils</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Electro- and magnetorheological fluids</subject><subject>Exact sciences and technology</subject><subject>Firmware</subject><subject>Flux density</subject><subject>Herbivores</subject><subject>Low pass filters</subject><subject>Magnetic flux</subject><subject>Magnetism</subject><subject>Magnetorheological fluids</subject><subject>Material types</subject><subject>Operational amplifiers</subject><subject>Physics</subject><subject>Response time</subject><subject>Rheological measurements</subject><subject>Rheological properties</subject><subject>Rheology</subject><subject>Shear rate</subject><subject>Shear stress</subject><subject>Shutdowns</subject><subject>Switching</subject><subject>Techniques and apparatus</subject><subject>Torque</subject><subject>Upper bounds</subject><issn>0035-4511</issn><issn>1435-1528</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNpFkEFLAzEQhYMoWKs_wFtABD1EJ0mzmz2KWBVaBNFzSLOTdstuUpMt2H_vlhaEgYF5780wHyHXHB44QPmYAWRVMoCCAVeKFSdkxCdSMa6EPiWjQVZsojg_Jxc5rwF4WZRiRMIcbd4m7DD0tIs1Zho97VdIE-ZNDBlp33S4H1ra2WXAPrK0wtjGZeNsS327bWp6N_-c3lMfE3UrG5ZNWB7Njds7fmmNITf97pKcedtmvDr2Mfmevnw9v7HZx-v789OMOQmyZ9ppt9ASKwtQOSWVdwXXtaoKUJWsKvSDKLRXQtV1bTkHp6EWSqNSC12hHJObw95Nij9bzL1Zx20Kw0kjRCGACznUmPCDy6WYc0JvNqnpbNoZDmaP1RywmgGr2WM1xZC5PW62efjfJxtck_-DWguhCyn_ABaYd3w</recordid><startdate>20070501</startdate><enddate>20070501</enddate><creator>LAUN, Hans Martin</creator><creator>GABRIEL, Claus</creator><general>Springer</general><general>Springer Nature B.V</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>KB.</scope><scope>L6V</scope><scope>M7S</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope></search><sort><creationdate>20070501</creationdate><title>Measurement modes of the response time of a magneto-rheological fluid (MRF) for changing magnetic flux density</title><author>LAUN, Hans Martin ; GABRIEL, Claus</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c303t-8c8cb83e9a009c535fc618d596059399ef83e28f525ddda110c80d258e55b89e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>Coils</topic><topic>Cross-disciplinary physics: materials science; rheology</topic><topic>Electro- and magnetorheological fluids</topic><topic>Exact sciences and technology</topic><topic>Firmware</topic><topic>Flux density</topic><topic>Herbivores</topic><topic>Low pass filters</topic><topic>Magnetic flux</topic><topic>Magnetism</topic><topic>Magnetorheological fluids</topic><topic>Material types</topic><topic>Operational amplifiers</topic><topic>Physics</topic><topic>Response time</topic><topic>Rheological measurements</topic><topic>Rheological properties</topic><topic>Rheology</topic><topic>Shear rate</topic><topic>Shear stress</topic><topic>Shutdowns</topic><topic>Switching</topic><topic>Techniques and apparatus</topic><topic>Torque</topic><topic>Upper bounds</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>LAUN, Hans Martin</creatorcontrib><creatorcontrib>GABRIEL, Claus</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>Materials Science Database</collection><collection>ProQuest Engineering Collection</collection><collection>Engineering Database</collection><collection>Materials Science Collection</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><jtitle>Rheologica acta</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>LAUN, Hans Martin</au><au>GABRIEL, Claus</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Measurement modes of the response time of a magneto-rheological fluid (MRF) for changing magnetic flux density</atitle><jtitle>Rheologica acta</jtitle><date>2007-05-01</date><risdate>2007</risdate><volume>46</volume><issue>5</issue><spage>665</spage><epage>676</epage><pages>665-676</pages><issn>0035-4511</issn><eissn>1435-1528</eissn><coden>RHEAAK</coden><abstract>The response of a magneto-rheological fluid (MRF) to a change of magnetic flux density is investigated by using a commercial plate–plate magneto-rheometer MCR501 (Anton Paar GmbH) at constant shear rate. The instrument was modified to allow an online determination of the transient flux density in the MRF. Both current and voltage imposition to the magneto-cell were applied by using a power operational amplifier to drive the electromagnet. Assuming a Maxwell behavior with switching time λ and a linear increase in shear stress with flux density, analytic relations for the transient shear stress are derived for sinusoidal and single exponential flux densities vs time. True switching times of a few milliseconds are only obtained if the low pass filter in the original MCR501 torque signal is surpassed by a firmware allowing a sampling rate of 0.1 ms. For a sinusoidal flux density, the switching time is derived from the modulation depth of the shear stress. An upper bound of λ < 3 ms for a flux density of 0.8 T was found. For step coil current imposition of 1 T magnitude, switching times of 2.8 ms (start-up) and 1.8 ms (shutdown) allowed to fit the transient torque signal more than 2/3 of the total change. Finally, the effect of a sigmoidal characteristic on the switching time determination is addressed.</abstract><cop>Berlin</cop><pub>Springer</pub><doi>10.1007/s00397-006-0155-6</doi><tpages>12</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0035-4511 |
| ispartof | Rheologica acta, 2007-05, Vol.46 (5), p.665-676 |
| issn | 0035-4511 1435-1528 |
| language | eng |
| recordid | cdi_proquest_journals_2262012312 |
| source | SpringerNature Journals |
| subjects | Coils Cross-disciplinary physics: materials science rheology Electro- and magnetorheological fluids Exact sciences and technology Firmware Flux density Herbivores Low pass filters Magnetic flux Magnetism Magnetorheological fluids Material types Operational amplifiers Physics Response time Rheological measurements Rheological properties Rheology Shear rate Shear stress Shutdowns Switching Techniques and apparatus Torque Upper bounds |
| title | Measurement modes of the response time of a magneto-rheological fluid (MRF) for changing magnetic flux density |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-15T02%3A56%3A29IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Measurement%20modes%20of%20the%20response%20time%20of%20a%20magneto-rheological%20fluid%20(MRF)%20for%20changing%20magnetic%20flux%20density&rft.jtitle=Rheologica%20acta&rft.au=LAUN,%20Hans%20Martin&rft.date=2007-05-01&rft.volume=46&rft.issue=5&rft.spage=665&rft.epage=676&rft.pages=665-676&rft.issn=0035-4511&rft.eissn=1435-1528&rft.coden=RHEAAK&rft_id=info:doi/10.1007/s00397-006-0155-6&rft_dat=%3Cproquest_cross%3E2262012312%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2262012312&rft_id=info:pmid/&rfr_iscdi=true |