Transform methods for frequency-dependent complex stiffness to time domain using real or imaginary data only
The author has studied the transform method of complex stiffness, which is strongly dependent on frequency, to the time domain. In this paper, new transform methods that use only the real part or the imaginary part data are proposed. By applying them to example problems, it is confirmed that the acc...
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| Veröffentlicht in: | Earthquake engineering & structural dynamics 2008-04, Vol.37 (4), p.495-515 |
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| container_title | Earthquake engineering & structural dynamics |
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| creator | Nakamura, Naohiro |
| description | The author has studied the transform method of complex stiffness, which is strongly dependent on frequency, to the time domain. In this paper, new transform methods that use only the real part or the imaginary part data are proposed. By applying them to example problems, it is confirmed that the accuracy of the proposed methods is almost high in both causal and noncausal cases. These methods can also be thought as a standby for the Hilbert transform, because the undefined part is easily calculated by the recovering complex function from the obtained impulse response. Copyright © 2007 John Wiley & Sons, Ltd. |
| doi_str_mv | 10.1002/eqe.767 |
| format | Article |
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Geothermics</subject><subject>Engineering geology</subject><subject>Exact sciences and technology</subject><subject>Hilbert transform</subject><subject>hysteretic damping</subject><subject>Internal geophysics</subject><subject>the Biot model</subject><issn>0098-8847</issn><issn>1096-9845</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNp1kNFqFTEQhhdR8Filr5Ab9UK2TpLdZPdSymkVDkpLpdCbkCaTGs0mp8ke7L69KVt659Uw_B8fM3_THFM4oQDsM97jiRTyRbOhMIp2HLr-ZbMBGId2GDr5unlTym8A4ALkpglXWcfiUp7IhPOvZAupC3EZ7w8YzdJa3GO0GGdi0rQP-EDK7J2LWAqZE5n9hMSmSftIDsXHO5JRB1IVftJ3Puq8EKtnTVIMy9vmldOh4LunedT8PNtenX5tdz_Ov51-2bWmY0K2_eAsUuAWboVzAHSAGlDB-C1D01kwPQ52YBJG5EJr7qgWCLLXxtHR9Pyo-bB69znVN8qsJl8MhqAjpkNRnEnKuBAV_LiCJqdSMjq1z_XuvCgK6rFNVdtUtc1Kvn9S6mJ0cLU148szzoAJDt2j8dPK_fUBl__p1PZiu1rblfZlxodnWuc_qqayV9ffz9X1zY53UvTqkv8Daa-TVw</recordid><startdate>20080410</startdate><enddate>20080410</enddate><creator>Nakamura, Naohiro</creator><general>John Wiley & Sons, Ltd</general><general>Wiley</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SM</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope></search><sort><creationdate>20080410</creationdate><title>Transform methods for frequency-dependent complex stiffness to time domain using real or imaginary data only</title><author>Nakamura, Naohiro</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4267-58fde103d0b6ff00180c421623b2ec4d0c5e8d82709e36aa3f1a6e075acf19c53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>causality</topic><topic>Earth sciences</topic><topic>Earth, ocean, space</topic><topic>Earthquakes, seismology</topic><topic>Engineering and environment geology. 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| ispartof | Earthquake engineering & structural dynamics, 2008-04, Vol.37 (4), p.495-515 |
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| language | eng |
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| source | Wiley Online Library Journals Frontfile Complete |
| subjects | causality Earth sciences Earth, ocean, space Earthquakes, seismology Engineering and environment geology. Geothermics Engineering geology Exact sciences and technology Hilbert transform hysteretic damping Internal geophysics the Biot model |
| title | Transform methods for frequency-dependent complex stiffness to time domain using real or imaginary data only |
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