Master of Engineering

Mechatronics Engineering

Zhejiang University (ZJU)

ddliu365 (at) gmail.com

Curriculum Vitae [pdf]

Last Updated 10/15/2017

News

• Research Assistant Working as a research assistant at Nanyang Technological University in Singapore
• Received my Master Degree of Mechatronics Engineering from Zhejiang University (June 2016)

Highlights

• Researched at The State Key Lab (SKL) of Fluid Power & Mechatronic Systems, China
• Researched at Nanyang Technological University, Singapore
• Researched at Key Laboratory of Parallel Robot & Mechatronic Systems, China
• Awarded National Scholarship by MOE of China
• Solid background in Mathematics
• Fluent in English and Native in Chinese

Research Interests

Robotics(Perception, Manipulation), Nonlinear Control

Research Experience

Research Assistant at Nanyang Technological University(NTU),Singapore

Parallel Computation Programming of Smart Spare Part Inventory System

September 2016 - present

• Led a team of three students in NTU to design, construct and modify the software.
• Programmed 30,000+ lines of codes with C# and tested the program on site.
• Programmed 20,000+ lines of codes with ASP.NET to complete GUI in Web.
• Proposed a divide-and-conquer strategy and reduced the complexity to O(nlogn) from O(n^2).
• Applied parallel computation to realize the strategy; the calculation time reduced from 8 hours to 40 minutes.
• Saved 15 senior engineers to maintain the system and increased the hit rate from 55% to 100% for the inventory system.

Research Intern at The State Key Lab (SKL) of Fluid Power & Mechatronic Systems, Zhejiang University

Structural Design and Experiment with Fuzzy-PID Control

for Rear Shaft Seal Test Platform

November 2014 - November 2015

• Designed and assembled the pressure controlling machine and its electric schematic.
• Programmed 10,000+ lines of codes with C# and built a communication system between GUI and Real-time xPC target in Matlab .
• Performed pressure controlling simulation with MATLAB in both stable and dynamic state; compared traditional PID and PID-Fuzzy strategies in two conditions in the simulation; established PID-Fuzzy as the control strategy, which has better dynamic control quality and can reduce the overshoot.
• Verified the control strategy on the prototype, maximum error is limited to 2.5%FS in the dynamic condition, 0.4 bar in the stable condition.

* More details available here

Development of pressure container modeling

for the Nonlinear Control System

December 2015 - June 2016

• Established relationship between pressure and liquid elastic modulus based on experiments.
• Established the accurate pressure container model by reverse engineering to verify the experimental results.
• Verified the simulation by experiments in stable state and dynamic state, the maximum error of the simulation with the proposed model is less than 2%.

Robotics Projects at Key Laboratory of Parallel Robot & Mechatronic Systems, Yanshan University

Design and Development of Automatically

Reconfigurable Parallel Walking Robot with Manipulators

Final Year Project(FYP), November 2014 - November 2015

• Designed a model of a 6 degree-of-freedom parallel robot with manipulators.
• Performed strength check with ANSYS and simulated velocity analysis with ADAMS.
• Won the highest score 95/100 among 155 students in the undergraduate thesis evaluation among the school

* More details available here

Hard Ware Development and Programming

of Smart Fruit Picking Robot Car

Undergraduate Integrated Project, Sept. 2012 - Dec. 2012

• Managed a team of four students to write programs for a model car which could follow traces drawn on the floor, dodge barriers, control robot arms to pick fruits.
• Drew the circuit and PCB for the chip microcomputer MCS-51.
• Designed and manufactured the robot arms for Fruit Picking System.
• Wrote programs on both microcomputer and PC to establish USB connection.
• Entered the annnual Smart-Car Contest and won 3rd prize(4/25).

* More details available here

EDUCATION

Courses: Modern Control Theory, Applied Mathematical Method, Finite Element Methods and its Engineering Application, Mechatronics, Flow Visualization Technology, The design and theory of Electro-hydraulic servo controls, Measurement and Modern Instrumentation

(Total Number of Credits: 24.0)

Audited Courses:

Convex Optimization; Algorithms and Theory of Computation; Design & Analysis of Experiments; Mathematical Statistics; Discrete Methods

Mathematical Course:

Advanced Mathematics AI & Advanced Mathematics AII(99/100), Linear Algebra(93/100), Mathematical Modeling(100/100), Probability & Mathematical Statistics (94/100), Complex Variable Analytic Method(93/100)

The National Graduate Entrance Examination of China: Mathematics 141/150(excellent score), including Advanced Mathematics, Linear Algebra and Probability & Mathematical Statistics.

Mechanics & Physics Course:

College Physics I(100/100), College Physics II(100/100), Theoretical Mechanics(99/100), Material Mechanics(99/100), Engineering Fluid Mechanics(96/100)

Major Course:

Robotics, Mechatronics System Design, Fundamentals of Single Chip Computer, Interface Technology of Mechatronics System, Electrical Control Technology, Engineering Testing Technology, Hydraulic and Pneumatic Transmission

Microcomputer Principle and Application(93/100), Mechanical Principles A(95/100), Course Design of Mechanical Principles(90/100), Engineering Materials(92/100), Mechanical Design A(90/100), Measuring Technique A(96/100), Electronic Technology A(99/100), Foundations of Control Engineering(90/100), Computer Aided Design(96/100)

(Total Number of Credits: 147.0)

working experience

Research and Development Project Leader at Hangzhou Huatai Electro - hydraulic Co., Ltd

July 2015 – November 2015

• Completed to purchase the corresponding components in accordance with the requirements of the company by consulting the relevant businesses via the web, telephone or face to face;
• Completed the procurement and inventory management of company components by MS-Excel, reducing the missing rate and improving the operational efficiency of the project;
• Developed a standard project management system which ensured project operate efficiently;
• In charge of the arrangement of employee’s daily work and maintained communication with cooperative enterprise;

Letter from Huatai Company

Mechanical Production Intern at China First Heavy Industries Co., Ltd(CFHI)

July 2012-August 2012

• Studied the product design, development and application, especially about CAD/CAM, CIMS. and internationalized enterprise’s production process such as machine tools, gearboxes and so on.

Honors and Awards

• National Scholarship, Ministry of Education of P. R. China(MOE of China), 2011

Awarded to the student who obtained the first place with GPA in the School of Mechanical Engineering

• University Principal Level Scholarship (thrice), 2010, 2011, 2012

Awarded to the student who obtained the first place in overall performance in the School of Mechanical Engineering

• Hebei Province First prize of Mechanical Design Contest, 2012

Awarded to one of five students who have excellent skills of Three Dimensional Design of Mechanical Product among 144 competitors in Hebei Province

• University First Excellent Scholarship, 2012
• Tianjin BDI Cooperation Scholarship, 2012
• University Second Excellent Scholarship, 2009
• 1st prize of Mechanical Design Contest in School of Mechanical Engineering, 2012
• 3rd prize of Mechanical Innovation in School of Mechanical Engineering (Robot Contest), 2012

Technical Skills

Advanced: C++, C#, Visual Basic, SQL, ASP.NET

Moderate: Python, Assembly Language(X86-64), HTML, CSS, JavaScript

Software: Matlab, Git, Labview, ANSYS, Pro/E, SolidWorks, ElecWorks, AMESim, Office, Photoshop

Language Proficiency

Fluent in English and Native in Chinese

New GRE: Verbal(155/170), Quantitative (170/170), Writing (4.0)

IBT TOEFL: 102(Reading: 30, Listening: 25, Writing: 23, Speaking: 24)

Extracurricular Activities

Vice President, Science and Technology Association in School of Mechanical Engineering

September 2009 - September 2011

• Organized more than 20 lectures on suggestions to participate in competitions; drafted 2010 Welcome Freshman Handbook
• Set up the students' lab for extra-curricular activities and purchased all tools necessary to develop prototypes

Counselor Assistant, School of Mechanical Engineering, Zhejiang University

September 2013 – February 2014

• Taught Chinese and learned English by participating in language exchange programs
• Helped exchange students adjust to Chinese culture and campus life
• Organized and participated in various activities and events such as welcoming party, weekly dinners, and international student festival