Model updating of ovine intervertebral disc via Experimental modal analysis

سال انتشار: 1398
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 629

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شناسه ملی سند علمی:

ISAV09_127

تاریخ نمایه سازی: 11 دی 1398

چکیده مقاله:

Experimental modal analysis is a non-invasive method which can be an alternative for con-ventional measurement techniques in various fields such as biomechanics. In this paper, ex-perimental modal test is conducted to obtain frequency response function of ovine spine mo-tion segment points and determine the specimen modal properties. Subsequently, a 3D finite element model of the sample is simulated in ABAQUS software to derive modal properties and frequency response function of the segment. Then, in order to estimate elastic properties of the intervertebral disc and damping ratio of each mode, model updating is employed via Isight optimization software using experimental and numerical modal data. The results show a good agreement between experimental and updated model outcomes.

نویسندگان

Amir hosein Kiani

Center of Excellence for Experimental Solid Mechanics and Dynamics, School of Mechani-cal Engineering, Iran University of Science and Technology, Narmak, Tehran, ۱۶۸۴۶, Iran

Kasra Ghasemian

Center of Excellence for Experimental Solid Mechanics and Dynamics, School of Mechani-cal Engineering, Iran University of Science and Technology, Narmak, Tehran, ۱۶۸۴۶, Iran

Farinaz Forouzesh

Center of Excellence for Experimental Solid Mechanics and Dynamics, School of Mechani-cal Engineering, Iran University of Science and Technology, Narmak, Tehran, ۱۶۸۴۶, Iran

Hamid Ahmadian

Center of Excellence for Experimental Solid Mechanics and Dynamics, School of Mechani-cal Engineering, Iran University of Science and Technology, Narmak, Tehran, ۱۶۸۴۶, Iran