Mechanical Engineering (MNE) Seminar by Sarah Dulac and Md. Faiyaz Jamil
When: Friday,
April 1, 2022
2:00 PM
-
3:00 PM
Description: Mechanical Engineering (MNE) SEMINAR
DATE:
April 1, 2022
TIME:
2:00 p.m. - 3:00 p.m.
LOCATION:
Charlton College of Business (CCB), Room 115
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SPEAKER #1:
Sarah Dulac, MS student in Mechanical Engineering (Advisor: Dr. Banafsheh Seyedaghazadeh)
TOPIC:
Harbor Seal Whisker Inspires the Study of Flow-Induced Vibration Based Underwater Sensors
ABSTRACT:
Aquatic bodies, such as a fish, leave behind different footprints or waterborne disturbances that consist of trails of flow vortices with a complex shedding frequency content. Harbor seals remarkably accomplish tracking their prey using their whiskers, functioning as a sensor. They possess the ability to detect the waterborne disturbances through interaction of the surrounding wake flow of the left-behind footprint with their flexible whisker structure. When the major axis of the whisker geometry is aligned with the flow, lengthwise undulations of the whisker model break the spatial coherence of vortex formation in the wake of the whisker, which in turn minimize or eliminate self-induced vortex-induced vibration (VIV) of whisker. This unique orientation-sensitive feature of the whisker allows the seal to move forward at steady speed with small self-induced noise from VIV. While the vortex-induced vibration and wake flow dynamics behind harbor seal whisker models are well-studied in the literature, their interaction with the oncoming vortex flow from upstream hydrodynamic objects is not well-understood and sparse in literature. In this study, water tunnel experiments are conducted to study flow-induced vibration response of an elastically mounted whisker model, when placed in the wake of an upstream circular cylinder in tandem arrangement.
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SPEAKER #2:
Md.Faiyaz Jamil, MS student in Mechanical Engineering (Advisor: Dr. Kihan Park)
TOPIC:
Targeted Drug Delivery with Light Actuated Micro Robots
ABSTRACT:
Over the last few years the development in micro robotics has enabled a vast field of active research and applicability of micro robots in biomedical engineering. Recent advancements in micro robotics suggest many pioneering works using light for fabrication as well as actuation at this tiny scale. One of the important applications of this could be but not limited to targeted drug delivery. In this project we are utilizing modular optical tweezers as a mean of control of the micro robots. Design and agility of the microbots in three-dimensional space without disrupting the bodily functions is critical for targeted drug delivery, and use of highly focused laser light allows it to be done in a less invasive manner with high accuracy and precision. Our state-of-the-art fabrication method, design process and robust mode of control open up new possibilities for micro tools that can perform complex therapeutic tasks effortlessly. Currently, we are developing a feedback control system to predict and correct our micro robot's path without any external input. On the grand scheme of this project we are hoping to perform targeted drug delivery in-vivo using our microbots and inspect the viability of our carrier design and performance by characterizing the effectiveness of targeted drug release.
For more information please contact Dr. Hangjian Ling, MNE Seminar Coordinator (hling1@umassd.edu).
All are welcome and light refreshments will be served.
Students taking MNE-500 are REQUIRED to attend! All other MNE students are encouraged to attend.
EAS students are encouraged to attend.
DATE:
April 1, 2022
TIME:
2:00 p.m. - 3:00 p.m.
LOCATION:
Charlton College of Business (CCB), Room 115
------------------------------------------------------------
SPEAKER #1:
Sarah Dulac, MS student in Mechanical Engineering (Advisor: Dr. Banafsheh Seyedaghazadeh)
TOPIC:
Harbor Seal Whisker Inspires the Study of Flow-Induced Vibration Based Underwater Sensors
ABSTRACT:
Aquatic bodies, such as a fish, leave behind different footprints or waterborne disturbances that consist of trails of flow vortices with a complex shedding frequency content. Harbor seals remarkably accomplish tracking their prey using their whiskers, functioning as a sensor. They possess the ability to detect the waterborne disturbances through interaction of the surrounding wake flow of the left-behind footprint with their flexible whisker structure. When the major axis of the whisker geometry is aligned with the flow, lengthwise undulations of the whisker model break the spatial coherence of vortex formation in the wake of the whisker, which in turn minimize or eliminate self-induced vortex-induced vibration (VIV) of whisker. This unique orientation-sensitive feature of the whisker allows the seal to move forward at steady speed with small self-induced noise from VIV. While the vortex-induced vibration and wake flow dynamics behind harbor seal whisker models are well-studied in the literature, their interaction with the oncoming vortex flow from upstream hydrodynamic objects is not well-understood and sparse in literature. In this study, water tunnel experiments are conducted to study flow-induced vibration response of an elastically mounted whisker model, when placed in the wake of an upstream circular cylinder in tandem arrangement.
------------------------------------------------------------
SPEAKER #2:
Md.Faiyaz Jamil, MS student in Mechanical Engineering (Advisor: Dr. Kihan Park)
TOPIC:
Targeted Drug Delivery with Light Actuated Micro Robots
ABSTRACT:
Over the last few years the development in micro robotics has enabled a vast field of active research and applicability of micro robots in biomedical engineering. Recent advancements in micro robotics suggest many pioneering works using light for fabrication as well as actuation at this tiny scale. One of the important applications of this could be but not limited to targeted drug delivery. In this project we are utilizing modular optical tweezers as a mean of control of the micro robots. Design and agility of the microbots in three-dimensional space without disrupting the bodily functions is critical for targeted drug delivery, and use of highly focused laser light allows it to be done in a less invasive manner with high accuracy and precision. Our state-of-the-art fabrication method, design process and robust mode of control open up new possibilities for micro tools that can perform complex therapeutic tasks effortlessly. Currently, we are developing a feedback control system to predict and correct our micro robot's path without any external input. On the grand scheme of this project we are hoping to perform targeted drug delivery in-vivo using our microbots and inspect the viability of our carrier design and performance by characterizing the effectiveness of targeted drug release.
For more information please contact Dr. Hangjian Ling, MNE Seminar Coordinator (hling1@umassd.edu).
All are welcome and light refreshments will be served.
Students taking MNE-500 are REQUIRED to attend! All other MNE students are encouraged to attend.
EAS students are encouraged to attend.
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