Analysis of parameters affecting beam gauge performance
Beam gauges have been used in the last decade or so for measuring the internal azimuthal compressive coil stresses in superconducting magnets. In early model Large Hadron Collider Interaction Region (LHC IR) quadrupoles tested at Fermilab, the beam gauges indicated excessively high amounts of inner...
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| Veröffentlicht in: | IEEE transactions on applied superconductivity 2000-03, Vol.10 (1), p.1399-1402 |
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| creator | Yadav, S. Kerby, J. Ozelis, J.P. |
| description | Beam gauges have been used in the last decade or so for measuring the internal azimuthal compressive coil stresses in superconducting magnets. In early model Large Hadron Collider Interaction Region (LHC IR) quadrupoles tested at Fermilab, the beam gauges indicated excessively high amounts of inner and outer coil prestress during the collaring process, inconsistent with the coil size and modulus data. In response to these measurements, a simple mechanics based quantitative understanding of different factors affecting beam gauges has been developed. A finite element model with contact elements and non-linear material behavior, confirmed with experimental results, was developed. The results indicate that a small plastic deformation of either the beam or the backing plate can cause significant errors in the measured stress values. The effect of variations in coil modulus and support boundary conditions on beam gauge performance are also discussed. |
| doi_str_mv | 10.1109/77.828500 |
| format | Article |
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In early model Large Hadron Collider Interaction Region (LHC IR) quadrupoles tested at Fermilab, the beam gauges indicated excessively high amounts of inner and outer coil prestress during the collaring process, inconsistent with the coil size and modulus data. In response to these measurements, a simple mechanics based quantitative understanding of different factors affecting beam gauges has been developed. A finite element model with contact elements and non-linear material behavior, confirmed with experimental results, was developed. The results indicate that a small plastic deformation of either the beam or the backing plate can cause significant errors in the measured stress values. The effect of variations in coil modulus and support boundary conditions on beam gauge performance are also discussed.</description><identifier>ISSN: 1051-8223</identifier><identifier>EISSN: 1558-2515</identifier><identifier>DOI: 10.1109/77.828500</identifier><identifier>CODEN: ITASE9</identifier><language>eng</language><publisher>New York, NY: IEEE</publisher><subject>Beams (structural) ; Coiling ; Colliding beam devices ; Compressive properties ; Compressive stress ; Exact sciences and technology ; Gages ; Gauges ; General equipment and techniques ; Instruments for strain, force and torque ; Instruments, apparatus, components and techniques common to several branches of physics and astronomy ; Internal stresses ; Large Hadron Collider ; Magnetic analysis ; Mathematical models ; Mechanical instruments, equipment and techniques ; Performance analysis ; Physics ; Plastic deformation ; Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing ; Stress measurement ; Stresses ; Superconducting coils ; Superconducting magnets ; Testing</subject><ispartof>IEEE transactions on applied superconductivity, 2000-03, Vol.10 (1), p.1399-1402</ispartof><rights>2000 INIST-CNRS</rights><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2000</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c427t-b88c8bc5506f92589b371fe8e5381ee822d85aa8abdf80c0e9283218756a1b563</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/828500$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>309,310,314,776,780,785,786,792,23909,23910,25118,27901,27902,54733</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/828500$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=1358591$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Yadav, S.</creatorcontrib><creatorcontrib>Kerby, J.</creatorcontrib><creatorcontrib>Ozelis, J.P.</creatorcontrib><title>Analysis of parameters affecting beam gauge performance</title><title>IEEE transactions on applied superconductivity</title><addtitle>TASC</addtitle><description>Beam gauges have been used in the last decade or so for measuring the internal azimuthal compressive coil stresses in superconducting magnets. In early model Large Hadron Collider Interaction Region (LHC IR) quadrupoles tested at Fermilab, the beam gauges indicated excessively high amounts of inner and outer coil prestress during the collaring process, inconsistent with the coil size and modulus data. In response to these measurements, a simple mechanics based quantitative understanding of different factors affecting beam gauges has been developed. A finite element model with contact elements and non-linear material behavior, confirmed with experimental results, was developed. The results indicate that a small plastic deformation of either the beam or the backing plate can cause significant errors in the measured stress values. The effect of variations in coil modulus and support boundary conditions on beam gauge performance are also discussed.</description><subject>Beams (structural)</subject><subject>Coiling</subject><subject>Colliding beam devices</subject><subject>Compressive properties</subject><subject>Compressive stress</subject><subject>Exact sciences and technology</subject><subject>Gages</subject><subject>Gauges</subject><subject>General equipment and techniques</subject><subject>Instruments for strain, force and torque</subject><subject>Instruments, apparatus, components and techniques common to several branches of physics and astronomy</subject><subject>Internal stresses</subject><subject>Large Hadron Collider</subject><subject>Magnetic analysis</subject><subject>Mathematical models</subject><subject>Mechanical instruments, equipment and techniques</subject><subject>Performance analysis</subject><subject>Physics</subject><subject>Plastic deformation</subject><subject>Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing</subject><subject>Stress measurement</subject><subject>Stresses</subject><subject>Superconducting coils</subject><subject>Superconducting magnets</subject><subject>Testing</subject><issn>1051-8223</issn><issn>1558-2515</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2000</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNqF0c1LwzAYBvAiCs7pwaunIiJ66MxH3-btcQy_YOBFzyXN3oyOfpl0B_97MzsUPCgEEsgvD-F5o-icsxnnLL9TaoYCgbGDaMIBMBHA4TCcGfAEhZDH0Yn3G8Z4iilMIjVvdf3hKx93Nu610w0N5HysrSUzVO06Lkk38Vpv1xT35GznGt0aOo2OrK49ne33afT2cP-6eEqWL4_Pi_kyMalQQ1IiGiwNAMtsLgDzUipuCQkkcqLwoRWC1qjLlUVmGOUCpeCoINO8hExOo-sxt3fd-5b8UDSVN1TXuqVu6wuBqWAZqP-hypiSKQZ48yfkmeIy1PVFL3_RTbd1oTBf5IKxsCQP6HZExnXeO7JF76pGu4-Cs2I3k0KpYpxJsFf7QO2Nrq0LVVb-54EEhHwXeTGyioi-b_cZnygqkEs</recordid><startdate>20000301</startdate><enddate>20000301</enddate><creator>Yadav, S.</creator><creator>Kerby, J.</creator><creator>Ozelis, J.P.</creator><general>IEEE</general><general>Institute of Electrical and Electronics Engineers</general><general>The Institute of Electrical and Electronics Engineers, Inc. (IEEE)</general><scope>RIA</scope><scope>RIE</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope><scope>F28</scope><scope>FR3</scope></search><sort><creationdate>20000301</creationdate><title>Analysis of parameters affecting beam gauge performance</title><author>Yadav, S. ; Kerby, J. ; Ozelis, J.P.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c427t-b88c8bc5506f92589b371fe8e5381ee822d85aa8abdf80c0e9283218756a1b563</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2000</creationdate><topic>Beams (structural)</topic><topic>Coiling</topic><topic>Colliding beam devices</topic><topic>Compressive properties</topic><topic>Compressive stress</topic><topic>Exact sciences and technology</topic><topic>Gages</topic><topic>Gauges</topic><topic>General equipment and techniques</topic><topic>Instruments for strain, force and torque</topic><topic>Instruments, apparatus, components and techniques common to several branches of physics and astronomy</topic><topic>Internal stresses</topic><topic>Large Hadron Collider</topic><topic>Magnetic analysis</topic><topic>Mathematical models</topic><topic>Mechanical instruments, equipment and techniques</topic><topic>Performance analysis</topic><topic>Physics</topic><topic>Plastic deformation</topic><topic>Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing</topic><topic>Stress measurement</topic><topic>Stresses</topic><topic>Superconducting coils</topic><topic>Superconducting magnets</topic><topic>Testing</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yadav, S.</creatorcontrib><creatorcontrib>Kerby, J.</creatorcontrib><creatorcontrib>Ozelis, J.P.</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 1998-Present</collection><collection>IEEE Electronic Library (IEL)</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><jtitle>IEEE transactions on applied superconductivity</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Yadav, S.</au><au>Kerby, J.</au><au>Ozelis, J.P.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Analysis of parameters affecting beam gauge performance</atitle><jtitle>IEEE transactions on applied superconductivity</jtitle><stitle>TASC</stitle><date>2000-03-01</date><risdate>2000</risdate><volume>10</volume><issue>1</issue><spage>1399</spage><epage>1402</epage><pages>1399-1402</pages><issn>1051-8223</issn><eissn>1558-2515</eissn><coden>ITASE9</coden><abstract>Beam gauges have been used in the last decade or so for measuring the internal azimuthal compressive coil stresses in superconducting magnets. In early model Large Hadron Collider Interaction Region (LHC IR) quadrupoles tested at Fermilab, the beam gauges indicated excessively high amounts of inner and outer coil prestress during the collaring process, inconsistent with the coil size and modulus data. In response to these measurements, a simple mechanics based quantitative understanding of different factors affecting beam gauges has been developed. A finite element model with contact elements and non-linear material behavior, confirmed with experimental results, was developed. The results indicate that a small plastic deformation of either the beam or the backing plate can cause significant errors in the measured stress values. The effect of variations in coil modulus and support boundary conditions on beam gauge performance are also discussed.</abstract><cop>New York, NY</cop><pub>IEEE</pub><doi>10.1109/77.828500</doi><tpages>4</tpages><oa>free_for_read</oa></addata></record> |
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| source | IEEE Electronic Library (IEL) |
| subjects | Beams (structural) Coiling Colliding beam devices Compressive properties Compressive stress Exact sciences and technology Gages Gauges General equipment and techniques Instruments for strain, force and torque Instruments, apparatus, components and techniques common to several branches of physics and astronomy Internal stresses Large Hadron Collider Magnetic analysis Mathematical models Mechanical instruments, equipment and techniques Performance analysis Physics Plastic deformation Sensors (chemical, optical, electrical, movement, gas, etc.) remote sensing Stress measurement Stresses Superconducting coils Superconducting magnets Testing |
| title | Analysis of parameters affecting beam gauge performance |
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