MS in Mechanical Engineering • May 2016
BS in Mechanical Engineering • May 2016
Dean's List: Fall 2014, Spring 2015
Design Engineer Intern• Chicago, IL • Summer 2015
• Designed PCB shields for a next generation mobile phone
• Conducted drop tests for display lens
• Developed an empirical model that successfully predicts the risk of glass shattering based on lens cutouts
Industry Engineer Intern • Malta, NY • Summer 2014
• Supported capacity expansion in Fab 8.1 via Yarbrough SW
• Programmed and installed heat control systems for multimillion dollar IC manufacturing equipment
• Worked in Class-1 Cleanroom (ISO 3)
Resident's Assistant • Lancaster, PA • Summer 2013
• Mentored and organized summer activities for talented students at Johns Hopkins University
Grant Recipient and Principal Engineer • 2015
• Authored and won $1000 SURG grant (funded by Boeing) to develop a tail-sitter drone
• Designed and prototyped a quadcopter that transforms into a flying wing plane for higher speed and better energy efficiency
Prof. Red Whittaker • Camera Systems Lead • Present
• Participated in the lead team in Google’s Lunar XPrize (a $30 million competition to land a privately funded robot on the moon)
• Facilitated a team of 6, designed lunar rover camera systems and conducted dynamic analysis, vibration analysis, and thermal analysis
Research Engineer • 2015
• Worked on a project funded by Emirates Airline to address deep vein thrombosis using soft robotics
• Designed and prototyped a compression sock using shape-memory alloys with ergonomic considerations and fine compression control
MS Research • 2014 - Present
• Designed, machined, and programmed robot, achieved functional locomotion and manipulation
• Tested and optimized robot for reliability and efficiency
Treasurer, Co-founder • 2014 - Present
• Restarted AIAA CMU chapter after years of inactivity
• Earned several grants to begin research projects into drone delivery systems
Suspension Engineer • 2014 - Present
• Designed A-Arms using Solidworks and ran FEA analysis
• Machined suspension system using both CNC and manual Mills and Lathes
Member • 2013 - 2014
• Active member on various projects
C/C++ • Mastercam • MATLAB • PTC Creo/Windchill • Solidworks/PDM • Machine Shop
Advanced Mobile Robot Development • Biomechatronic Design for Humans • Microelectromechanical Systems (MEMS) • Soft Robotics: Mechanics, Design, and Modelling • Engineering Design • Engineering Computation
This project focused on the development of the CMU-Astrobotic Lunar Rover, in pursuit of the $20 Million Google XPrize. Thus far, we have been awarded $1.5 Million.
I am an active member of the Chassis and Camera design teams. At present, we are developing Andy 3.0, our protoflight rover. This rover will be space-ready.
I assisted in static and dynamic analysis, created manufacturing drawings, and led the camera team. Manufacturing was outsourced.
I led a group of six engineers in the mechanical design of the camera head.
The camera head was carefully designed, balancing various constraints and conforming to all design requirements. The designed camerahead has been tested for navigation and data collection. Further optimizations will be focused in reduction of camera-head mass while maintaining the current rigidity.
In leading the team, I gained many valuable experiences beyond mechanical design. My position required frequent interfacing with other functional teams. I helped me to gain a global perspective of the project and to understand the necessary compromises in balancing our own deliverables against constraints from other teams. This leadership position also allowed me to appreciate the contributions of others and understand the importance of motivating each member.
Key specifications included:
• Simple manufacturing for rigidity and cost
• Simple mechanism to minimize failure points
• 360˚ hazard detection
• Easy navigation (necessitated design and manufacture of viewing structure for natural, intuitive usage)
• HD view into the depths of Lacus Mortis (lunar pit with lava tubes)
• Panoramic imaging ability with .3 milliradians/pixel resolution, centered on the horizon
• Natural frequency above 75 Hz, and different from the mast and chassis natural frequencies
• Fisheye lens in line with the solar panel to minimize obstruction
• Structure with negligible camera occlusion
• Various visual design requirements to fit with the rover design language
• Operation in lunar conditions
This robot was designed with a vision to create a simple robotic system that is low cost and robust as a learning platform for robotics education.
Like a praying mantis, this robot has 6 legs. With a goal to keep the cost under $25,000 in its final form, we experienced many constraints in our designs of the robot. With this design, the robot could stand on the rear 4 while using the front 2 for manipulation, then bend forwards to use all 6 legs for locomotion. This would distribute the strain on each of the servos relatively evenly.
I optimized for speed and range of movement, while minimizing stress on the servos. The objectives completed thus far are:
• Complete redesign of limbs and body
• Machining and assembly of robot
• Created mathematical model using Denavit-Hartenberg parameters
• Created new visual models for robot emulation and debugging
• Bugfixes and tuning for basic movements
The project is still a “work-in-progress”. Today, the mantis can stand and has taken a few rough steps. We plan to have a complete, working robot by the end of the year.
Here is an image of the robot standing up after taking its first few steps:
To me, engineering is not only fun when designing and building various projects for myself, but also when I'm helping others.
The father-son club at Warwick Foundation is a team-building hobby club. In this club, a father and son team works together to build a quadcopter drone, through which they learn and work together. I helped run the club as an engineering instructor and mentor by giving lectures on basic applied physics (fundamentals about brushless motors and propeller design, etc.), and by providing individual thutoring throughout the building process. The lessons concluded with short talks on how to build character, e.g. friendship, self-discipline, hard-working.
It was fulfilling to see the drones finally get into the sky, with smiling children and their proud fathers nearby. It is clear that it was not just drones being built, but also a lifelong memory and a stronger fraternal bond.
Here is a group in the club assembling a drone:
As a Design Engineer Intern in product development at Motorola, I worked on design using PTC Creo, accelerated life testing and analysis, and development of design tools.
• Designed the PCB shields for an upcoming Motorola smartphone, working with the electrical team on PCB component placement. This was followed by working with various suppliers for manufacturability and cost reduction.
• Conducted ALT (Accelerated Life Testing) on many prototype models to collect and analyze data to complement simulation data to inform design changes for future prototypes.
• Tested display/lens shattering and cracking. By observing shatter characteristics as a function of various dimensions in the glass cutouts, I formulated an empirical model that can be used to predict the lens shattering feasibility for devices in current and future development.
GlobalFoundries is one of the largest semiconductor foundry facilities in the world, producing chips at 28nm and 14nm nodes for advanced semiconductor devices including those in the latest Apple iPhone. The facility was in the midst of a major capacity expansion, extending its clean room (ISO 3) to 300,000 sq, ft. to support an output of 60,000 wafers (300 mm) a month.
As an Industry Engineer Intern, I worked both inside the sub FAB and directly inside the FAB through Yarbrough SW, to support its capacity expansion. Our team installed and programmed heat control systems that increased the lifespan of the clean room pumps by a factor of 10.
Currently a senior at Carnegie Mellon University, I am passionate about learning new technologies and exploring new frontiers. Being a hands-on engineer, I have broad experience in engineering and robotics, covering designing, machining, coding, and testing. In my leisure time, I am involved in variety of community service organizations. It especially brings me a deep satisfaction in organizing engineering education programs.