Mechanical Engineering

Automatic Chair Stacking System

Automation is the technology about combination of hardware and software to complete designated tasks with minimal manual intervention. Automation was first applied to automobile industry in the 1970s and started to extend its use in daily life since then. Automatic system has its advantages over traditional manpower in doing repetitive tasks, e.g., it maintains a high-quality standard and safety standard.

This project, the Automatic Chair Stacking System, will be cooperating with the Automatic Chair Parking System to showcase the idea of automatic conference room, i.e., to automatically set up chairs in the area.

RoboFish (The VAYU project)

This project is the first endeavour of BREED HKU, HKU’s first bio-inspired robotics organisation. RoboFish is our very own robotic fish, controlled by a raspberry pi and powered by a battery, aimed at helping us learn more about underwater biomechanics. Not only does the fish have a high speed potential, but the project also involves the study of how fish movements are affected by different variables such as turbulence and drag. This targets the analysis of marine biology and ecosystems. Our model has many applications for research and development in the academic world, such as surveillance systems and sea exploration.

MECH4412 Automated storage and retrieval system design competition

Under the course MECH4412 (Design and manufacturing), the hands-on project is an important element which allows the students to develop hands-on skill and problem-solving technique. In the last academic year, the project title was “An automated storage and retrieval system (ASRS)”. ASRS consists of a variety of computer-controlled systems for automatically placing and retrieving loads from defined storage locations. The benefits of an AS/RS system include reduced labour for transporting items into and out of inventory, reduced inventory levels, more accurate tracking of inventory, and space savings. Items are often stored more densely than in systems where items are stored and retrieved manually.

British Model Fly Association (BMFA) 2019 University and Schools Flight Challenges

The Design, Build & Fly (DBF) is a regular capstone design project under the Department of Mechanical Engineering. Every year, many ME students show a very strong enthusiasm in this project and our department encourages them to participate in different international competitions. Many student competitions are based on solving “real” cases and problems. By participating in a competition, it helps students to build up links between thinking and doing so that they learn to apply theories into practice with a deeper understanding of the concepts.

IMechE The Greater China Design Competition

The Greater China Design Competition 2019 (GCDC) was held by the Institution of Mechanical Engineers. Participants are required to design an energy relay system consists of four cars with different sources of energy, e.g. electrical, elastic energy, solar power, … etc. Each car was required to complete a 4m (L) X 0.5m (W) width path and trigger another car, hence, to finish a total of 12 meters straight path.

Design, Build & Fly for AIAA competition

The Design, Build & Fly (DBF) is a regular capstone design project under the Department of Mechanical Engineering. Every year, many ME students show a very strong enthusiasm in this project and our department encourages them to participate in different international competitions. Many student competitions are based on solving “real” cases and problems. By participating in a competition, it helps students to build up links between thinking and doing so that they learn to apply theories into practice with a deeper understanding of the concepts.

Surgical robotics

The topic of the project is “Surgical robotic system development for dental applications”. A group of four students were dedicated to making a compact and dexterous dental robot specially designed for private dental clinics at densely populated cities like Hong Kong. Tendon-driven mechanism is adopted to minimize its size while a six Degree-of-Freedom mechanism in its joints helps boosting its dexterity. A haptic device was utilized to translate the hand motions of the dentist for teleoperation.

A robotic catheter system for MRI-guided cardiac electrophysiological intervention

Magnetic resonance imaging (MRI) techniques allow intra-operative monitoring of the ablation procedure during cardiovascular electrophysiology (EP). However, currently it is still challenging to carry out effective catheterization under MRI environment. We present an MR-safe robot for intra-cardiac EP intervention. The robot actuation features small hysteresis, effective force transmission and quick response. Experimental evaluation has verified its capability to precisely tele-manipulate a standard clinically used EP catheter. The slave part of the robot is made of non-metallic MR-safe materials, therefore can operate close to or inside the MRI scanner without adversely affecting the MR image quality.

Development of universal testing machine with digital image correlation system for soft and biomaterials

Research on the development of new types of biomaterials has become one of the major focus in the engineering field in recent years. The biomaterial is integrated with medical engineering so it can be engineered to interact with the biological system in the human body for the different medical purpose. In order to opt for the optimal biomaterial for a certain medical purpose, several testing related to the measurement of displacement and strain should be performed on the biomaterial. This project aim to develop an Universal Testing Machine (UTM) with Digital Image Correlation method (DIC) to provide a field true strain measurement and reduces the disturbance on the local mechanical response of the local mechanical response of the testing material, providing a better, more precise and immediate strain/displacement analysis of the experiment than using the extensometer.

3D Food printer

The project aims to build a 3D food printer that is user-friendly for household users, through remodelling of the TEVO Tarantula 3D printer. Upon completion on configuration of hardware and software, an extrusion system is designed based on a meat mincer. The goal of this project is to print the customised dish with food material in high precisity. Another focus of this project is exploring food material applicable for 3D printing. With rich nutrient content and high formability, potatoes is chosen to make a great show with other supporting actress. The effort paid by the team does make an exciting return. It is wished that the efficiency of the printer can be greatly enhanced in the foreseeable future and finally be a necessary for a home.