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Filtering by: Creator Pekin, Burak K. Remove constraint Creator: Pekin, Burak K. Academic Affiliation Mechanical, Industrial, and Manufacturing Engineering Remove constraint Academic Affiliation: Mechanical, Industrial, and Manufacturing Engineering

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  • Active and Passive Structural Vibration Mitigation for High-Speed Machine Tools

    Creator:
    Indrarto, Christopher Wilfred
    Abstract:
    This thesis presents novel feedback and feedforward control system design strategies for active to passive vibration mitigation of residual vibrations on high speed machine tools. Residual vibrations on high-speed machine tools are triggered when the machine axes (table) undergo large accelerations, which induce sudden inertial forces and excite the lightly...
    Resource Type:
    Masters Thesis
    Full Text:
    . Abstract approved: ______________________________________________________ Burak Sencer This

  • Smooth Trajectory Generation for Machine Tools and Industrial Robots

    Creator:
    Tajima, Shingo
    Abstract:
    This thesis presents accurate and time-optimal smooth reference trajectory generation techniques for manufacturing equipment such as high-speed machine tools (MT) and industrial robots (IR). Typical machining tool-paths for MTs and IRs are defined as a series of discrete linear moves. Although Point-to-Point (P2P) feed motion can be generated by interpolating...
    Resource Type:
    Dissertation
    Full Text:
    . Abstract approved: ______________________________________________________ Burak Sencer This

  • Optimal High-bandwidth Non-collocated Control of Ball-screw Drives

    Creator:
    Dumanli, Alper
    Abstract:
    This work presents a novel optimal control strategy for precision motion control of flexible ball-screw feed drives. Typically, ball-screw feed drive control relies on state feedback taken both from motor and the load sides. The controller designed in this thesis is based on the non-collocated framework, where all the feedback...
    Resource Type:
    Masters Thesis
    Full Text:
    : ______________________________________________________ Burak Sencer This work presents a novel optimal control strategy for precision motion

  • Mechanics and Dynamics of Low Frequency Vibration Assisted Machining

    Creator:
    Eren, Bora
    Abstract:
    This thesis presents mechanics and dynamics of Low Frequency Vibration Assisted Turning (LFV-T). First, a mechanistic model for analytical cutting force and specific cutting energy prediction is presented. Kinematics of the process is used to analyze the cut surface topography and derive the uncut chip thickness variation for various modulation...
    Resource Type:
    Masters Thesis
    Full Text:
    : ______________________________________________________ Burak Sencer This thesis presents mechanics and dynamics of Low Frequency Vibration

  • Geometric Chatter Stability Index for Milling and Modeling of Chip Pulling Effect

    Creator:
    Maulimov, Mukhtar
    Abstract:
    Prediction and mitigation of chatter vibrations in machining operations and optimizing overall machining mechanics are crucial for achieving greater productivity and manufacturing efficiency. This thesis first explores effect of directional relationships on chatter stability in milling process. Based on the directional relationships, a geometry-based chatter stability index (CSI) is proposed...
    Resource Type:
    Masters Thesis
    Full Text:
    Abstract approved: _____________________________________________________ Burak

  • Generalized Chip Formation and Thermal Dynamics of Modulated Turning

    Creator:
    Ozdemir, Mert
    Abstract:
    Modulation assistance is widely employed to improve chip management in turning. This process is also known as modulated turning. Modulated turning transforms continuous cutting into intermittent cutting by periodically disengaging the tool tip from the workpiece, resulting in the generation of short, easily managed chips. This novel method improves the...
    Resource Type:
    Masters Thesis
    Full Text:
    Turning. Abstract approved: ______________________________________________________ Burak

  • Optical sensing and metrology for on-machine surface inspection in manufacturing processes

    Creator:
    Lee, Eddie T.
    Abstract:
    Optical sensing technologies are pivotal in the manufacturing process, specifically in defect detection, tool condition estimation, and monitoring. The research aims to enhance the accuracy, efficiency, and reliability of manufacturing metrology by employing optical sensing technologies, such as laser profilometers and image processing techniques. The dissertation proposes intelligent and flexible...
    Resource Type:
    Dissertation
    Full Text:
    Processes Abstract approved: Zhaoyan Fan Burak Sencer Optical sensing technologies are pivotal in the

  • Experimental characterization of saw chain cutting performance

    Creator:
    Otto, Andrew W.
    Abstract:
    Chainsaw users value cutting performance and safety. Knowledge of the forces exerted during sawing are necessary to understand and improve the cutting performance of saw chain. Additionally, cutting forces can be used to form metrics for evaluating performance tradeoffs when using a safety (i.e. low-kickback) saw chain versus a standard...
    Resource Type:
    Masters Thesis
    Full Text:
    ) FC Cutting force (N) FCH Chain force (N) FF Feed Force (N) FT Chain tension (N) k Shear

  • Robotic deburring

    Creator:
    James, Francis
    Abstract:
    Deburring of machined parts is a crucial task in the aerospace and automotive industry. This process is still performed manually to a large extent due to the unpredictability of burr formation as well as the complex interactions between the human arm and the workpiece. Poor ergonomics, repetitive stress and strain...
    Resource Type:
    Masters Thesis
    Full Text:
    ACKNOWLEDGEMENTS I would like to thank my advisors - Dr. Ravi Balasubramanian and Dr. Burak Sencer for their

  • Characterization of Two Novel Machining Processes for Difficult to Machine Materials

    Creator:
    Doran, Michael P.
    Abstract:
    New materials with superior mechanical properties, such as increased strength and hardness, have been developed to allow for new and improved products. However, the mechanical properties that make these materials useful also makes them difficult to process using conventional methods. New machining processes need to be developed to generate products...
    Resource Type:
    Masters Thesis
    Full Text:
    appreciation to my committee members Roberto Albertani, Ben Mason, and Burak Sencer. And finally, I greatly