Researcher:
Anaç, Ozan

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Master Student

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Ozan

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Anaç

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Anaç, Ozan

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2005 - 20084

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Researcher Of Publications: search.filters.isAuthorOfPublication.0644d012-f4d1-4d38-a5d1-4bf3027ddfa4

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Now showing 1 - 4 of 4
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    Application of a design methodology using a 2D micro scanner
    (Taylor & Francis, 2006) Department of Mechanical Engineering; N/A; Başdoğan, İpek; Anaç, Ozan; Faculty Member; Master Student; Department of Mechanical Engineering; College of Engineering; Graduate School of Sciences and Engineering; 179940; N/A
    Predicting the performance of Micro Electro Mechanical Systems (MEMS) early in the design phase can impact the design cost and also improve the quality of the design. This paper presents a methodology which aims to predict the performance of such systems under various disturbance sources and develop a generalized design approach for micro structures. A two-dimensional torsional micro scanner mirror was chosen as the case study to demonstrate the developed methodologies. The finite element model (FEM) of the micro mirror was built using ANSYS software. An experimental vibration testing system was built to validate, update, and correct the finite element model. Validated finite element model was used to obtain the state space representation of the mirror. The state space model was used for disturbance analysis which was performed using Lyapunov approach to obtain root-mean-square (RMS) values of the mirror rotation angle under the effect of a disturbance torque. The disturbance analysis framework was combined with the sensitivity analysis to determine the critical design parameters for improving the system performance.
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    Model validation methodology for design of micro systems
    (Amer Soc Mechanical Engineers, 2006) Department of Mechanical Engineering; Anaç, Ozan; Başdoğan, İpek; Master Student; Faculty Member; Department of Mechanical Engineering; Graduate School of Sciences and Engineering; College of Engineering; N/A; 179940
    Micro Electro Mechanical Systems (MEMS) are the new and emerging technology of the future and have many applications on different disciplines like biomedical, imaging technology, biology etc. Predicting the dynamic performance and reliability characteristics of such systems early in the design process can impact the quality of the design. This paper presents our modeling, testing, and validation methodologies to predict the dynamic performance of micro systems. A two-dimensional torsional micro scanner mirror is chosen as the case study to demonstrate the developed methodologies. Modeling methodology includes modal analysis of the micro scanner using finite element modeling techniques. The validation methodology uses an experimental modal analysis set-up for measuring the dynamic characteristics of the scanner mirror. The finite element analysis and experimental results are compared to identify the inaccuracies in the modeling assumptions. Additionally, modal damping coefficients are also determined since they are critical to predict the response of such systems to external forces.
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    Model validation and performance prediction in the design of micro systems
    (Sage Publications Ltd, 2008) N/A; Department of Mechanical Engineering; Anaç, Ozan; Başdoğan, İpek; Master Student; Faculty Member; Department of Mechanical Engineering; Graduate School of Sciences and Engineering; College of Engineering; N/A; 179940
    Micro Electro Mechanical Systems are among the new and emerging technologies of the future and have many applications in different disciplines. Predicting the performance of such systems early in the design process can significantly impact the design cost and also improve the quality of the design. This study presents the model validation techniques integrated with some design methodologies to predict the performance of the micro systems. A two-dimensional micro scanner mirror was chosen as the case study to demonstrate the developed methodologies. The model validation methodology includes the verification of the finite element model using an experimental modal analysis setup for measuring the out-of-plane vibrations of the micro devices. The setup includes a laser doppler vibrometer, a microscope, a camera, a laser positioning system, and a data acquisition system to acquire the data. An experimental procedure was developed to collect the vibration data and then modal analysis was performed to determine the modal frequencies, mode shapes, and modal damping coefficients. The finite element analysis and experimental results were compared to identify the inaccuracies in the modeling assumptions. A validated finite element model was used to obtain the state space representation of the micro scanner mirror to proceed further with additional design studies. The state space model was used for disturbance analysis that was performed using Lyapunov approach to obtain root mean square values of the mirror rotation angle under the effect of a disturbance torque. The disturbance analysis framework was combined with the sensitivity analysis to determine the critical design parameters for improving the system performance. In addition to the disturbance sensitivity analysis, modal sensitivities of the design parameters were also investigated. This analysis was performed by perturbing the design parameters and investigating the change in the modal frequencies.
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    Two-axis MENIS scanner for display and imaging applications
    (IEEE-Inst Electrical Electronics Engineers Inc, 2005) Department of Electrical and Electronics Engineering; Department of Electrical and Electronics Engineering; Department of Electrical and Electronics Engineering; N/A; N/A; N/A; Department of Mechanical Engineering; Ürey, Hakan; Yalçınkaya, Arda Deniz; Brown, Dean; Anaç, Ozan; Ataman, Çağlar; Başdoğan, İpek; Faculty Member; Researcher; Researcher; N/A; N/A; Master Student; PhD Student; Faculty Member; Department of Electrical and Electronics Engineering; Department of Mechanical Engineering; College of Engineering; College of Engineering; College of Engineering; N/A; N/A; Graduate School of Sciences and Engineering; Graduate School of Sciences and Engineering; College of Engineering; 8579; 144523; N/A; N/A; N/A; N/A; N/A; 179940
    Two-axis gimbaled scanner used in an SVGa display product with 58deg optical scan angle, 1.5mm mirror size, and 21.KHz resonant frequency is reported Scanner is actuated electromagnetically using a single coil on the outer frame and by mechanical coupling of outer frame motion into the inner mirrorframe.