METHODS AND APPARATUS FOR MODAL PARAMETER ESTIMATION
In accordance with one embodiment of the present invention, a system (100) for extracting modal parameters of a structure (102) includes an analysis module (140) configured to estimate the modal parameters by computing only a subset of the autospectral matrix of the input data and then solving for t...
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| description | In accordance with one embodiment of the present invention, a system (100) for extracting modal parameters of a structure (102) includes an analysis module (140) configured to estimate the modal parameters by computing only a subset of the autospectral matrix of the input data and then solving for the adjoint solution to extract a matrix denominator polynomial. In accordance with another aspect of the invention, orthogonal polynomials are used for the instrumental variables to estimate the matrix polynomial from which the modal parameters are extracted.
Selon un mode de réalisation de la présente invention, un système (100) destiné à extraire des paramètres modaux d'une structure (102) comprend un module d'analyse (140) configuré pour estimer les paramètres modaux par le calcul seulement d'un sous-ensemble de la matrice autospectrale des données d'entrée et ensuite par la résolution de la solution adjointe pour extraire un polynôme de dénominateur de matrice. Selon un autre aspect de l'invention, des polynômes orthogonaux sont utilisés pour les variables instrumentales afin d'estimer le polynôme de matrice à partir duquel les paramètres modaux sont extraits. |
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Selon un mode de réalisation de la présente invention, un système (100) destiné à extraire des paramètres modaux d'une structure (102) comprend un module d'analyse (140) configuré pour estimer les paramètres modaux par le calcul seulement d'un sous-ensemble de la matrice autospectrale des données d'entrée et ensuite par la résolution de la solution adjointe pour extraire un polynôme de dénominateur de matrice. Selon un autre aspect de l'invention, des polynômes orthogonaux sont utilisés pour les variables instrumentales afin d'estimer le polynôme de matrice à partir duquel les paramètres modaux sont extraits.</description><language>eng ; fre</language><subject>ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS ; MEASURING ; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE ; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR ; PHYSICS ; TARIFF METERING APPARATUS ; TESTING ; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES ; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR</subject><creationdate>2008</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&date=20080103&DB=EPODOC&CC=WO&NR=2008002310A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25555,76308</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20080103&DB=EPODOC&CC=WO&NR=2008002310A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>VOLD, HAVARD, I</creatorcontrib><title>METHODS AND APPARATUS FOR MODAL PARAMETER ESTIMATION</title><description>In accordance with one embodiment of the present invention, a system (100) for extracting modal parameters of a structure (102) includes an analysis module (140) configured to estimate the modal parameters by computing only a subset of the autospectral matrix of the input data and then solving for the adjoint solution to extract a matrix denominator polynomial. In accordance with another aspect of the invention, orthogonal polynomials are used for the instrumental variables to estimate the matrix polynomial from which the modal parameters are extracted.
Selon un mode de réalisation de la présente invention, un système (100) destiné à extraire des paramètres modaux d'une structure (102) comprend un module d'analyse (140) configuré pour estimer les paramètres modaux par le calcul seulement d'un sous-ensemble de la matrice autospectrale des données d'entrée et ensuite par la résolution de la solution adjointe pour extraire un polynôme de dénominateur de matrice. Selon un autre aspect de l'invention, des polynômes orthogonaux sont utilisés pour les variables instrumentales afin d'estimer le polynôme de matrice à partir duquel les paramètres modaux sont extraits.</description><subject>ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS</subject><subject>MEASURING</subject><subject>MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE</subject><subject>MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR</subject><subject>PHYSICS</subject><subject>TARIFF METERING APPARATUS</subject><subject>TESTING</subject><subject>TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES</subject><subject>TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2008</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDDxdQ3x8HcJVnD0c1FwDAhwDHIMCQ1WcPMPUvD1d3H0UQCJANW4Bim4Bod4-jqGePr78TCwpiXmFKfyQmluBmU31xBnD93Ugvz41OKCxOTUvNSS-HB_IwMDCwMDI2NDA0dDY-JUAQBg-ig1</recordid><startdate>20080103</startdate><enddate>20080103</enddate><creator>VOLD, HAVARD, I</creator><scope>EVB</scope></search><sort><creationdate>20080103</creationdate><title>METHODS AND APPARATUS FOR MODAL PARAMETER ESTIMATION</title><author>VOLD, HAVARD, I</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_WO2008002310A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre</language><creationdate>2008</creationdate><topic>ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS</topic><topic>MEASURING</topic><topic>MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE</topic><topic>MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR</topic><topic>PHYSICS</topic><topic>TARIFF METERING APPARATUS</topic><topic>TESTING</topic><topic>TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES</topic><topic>TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR</topic><toplevel>online_resources</toplevel><creatorcontrib>VOLD, HAVARD, I</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>VOLD, HAVARD, I</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>METHODS AND APPARATUS FOR MODAL PARAMETER ESTIMATION</title><date>2008-01-03</date><risdate>2008</risdate><abstract>In accordance with one embodiment of the present invention, a system (100) for extracting modal parameters of a structure (102) includes an analysis module (140) configured to estimate the modal parameters by computing only a subset of the autospectral matrix of the input data and then solving for the adjoint solution to extract a matrix denominator polynomial. In accordance with another aspect of the invention, orthogonal polynomials are used for the instrumental variables to estimate the matrix polynomial from which the modal parameters are extracted.
Selon un mode de réalisation de la présente invention, un système (100) destiné à extraire des paramètres modaux d'une structure (102) comprend un module d'analyse (140) configuré pour estimer les paramètres modaux par le calcul seulement d'un sous-ensemble de la matrice autospectrale des données d'entrée et ensuite par la résolution de la solution adjointe pour extraire un polynôme de dénominateur de matrice. Selon un autre aspect de l'invention, des polynômes orthogonaux sont utilisés pour les variables instrumentales afin d'estimer le polynôme de matrice à partir duquel les paramètres modaux sont extraits.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS MEASURING MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR PHYSICS TARIFF METERING APPARATUS TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR |
| title | METHODS AND APPARATUS FOR MODAL PARAMETER ESTIMATION |
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