Circuit theoretical method for efficient finite element analysis of acoustical problems

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buir.contributor.orcidAtalar, Abdullah|0000-0002-1903-1240
dc.citation.epage1254en_US
dc.citation.spage1251en_US
dc.contributor.authorEkinci, A. Suaten_US
dc.contributor.authorAtalar, Abdullahen_US
dc.coverage.spatialSendai, Japanen_US
dc.date.accessioned2016-02-08T10:42:41Z
dc.date.available2016-02-08T10:42:41Z
dc.date.issued1998en_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.descriptionDate of Conference: 5-8 October 1998en_US
dc.descriptionConference Name: 1998 IEEE Ultrasonics Symposiumen_US
dc.description.abstractIn the last decade, there has been an outstanding improvement in the computer aided design tools for VLSI circuits regarding solution times and the circuit complexity. This study proposes formulating the acoustic field analysis problem using FEM, and employing the recent speed-up techniques used in the circuit simulators. In this work, total mass, stiffness and damping matrices are obtained using the FE approach, and piped into a computer program which generates an equivalent SPICE compatible circuit netlist. This approach makes it possible to use the most recent circuit simulation techniques to simulate the acoustical problems. The equivalent electrical circuit is a resistor-inductor-capacitor (RLC) circuit containing controlled sources to handle the couplings. The circuit matrices are 6 times larger but are sparser. We analyze these circuits with a general-purpose circuit simulation program, HSPICE, which provides high accuracy solutions in a short time. We also use an in-house developed circuit simulation program, MAWE, which makes use of asymptotic waveform evaluation (AWE) technique that has been successfully used in circuit simulation for solutions of large sets of equations. The results obtained on several problems, which are solved in time and frequency domains using circuit simulators and the FE analysis program ANSYS, match each other pretty well. Using circuit simulators instead of conventional method improves simulation speed without a significant loss of accuracy.en_US
dc.description.provenanceMade available in DSpace on 2016-02-08T10:42:41Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 70227 bytes, checksum: 26e812c6f5156f83f0e77b261a471b5a (MD5) Previous issue date: 1998en
dc.identifier.doi10.1109/ULTSYM.1998.765066en_US
dc.identifier.issn1051-0117en_US
dc.identifier.urihttp://hdl.handle.net/11693/25315
dc.language.isoEnglishen_US
dc.publisherIEEEen_US
dc.relation.isversionofhttps://doi.org/10.1109/ULTSYM.1998.765066en_US
dc.source.titleProceedings of the 1998 IEEE Ultrasonics Symposiumen_US
dc.subjectCapacitorsen_US
dc.subjectComputer aided network analysisen_US
dc.subjectComputer simulationen_US
dc.subjectDampingen_US
dc.subjectElectric network synthesisen_US
dc.subjectEquivalent circuitsen_US
dc.subjectFinite element methoden_US
dc.subjectFrequency domain analysisen_US
dc.subjectResistorsen_US
dc.subjectTime domain analysisen_US
dc.subjectVLSI circuitsen_US
dc.subjectWaveform analysisen_US
dc.subjectAsymptotic waveform evaluation (AWE) methoden_US
dc.subjectSoftware package SPICEen_US
dc.subjectUltrasonicsen_US
dc.titleCircuit theoretical method for efficient finite element analysis of acoustical problemsen_US
dc.typeConference Paperen_US

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