Model development for machine condition assessment

The scope of this project is to construct a physics-based analytical model through the bond graph modeling for a reciprocating compressor.  The purpose of this model is to quantify input-output relations among mechanical components involved in a compressor, particularly under normal operating conditions.  Such a model, once validated and calibrated can serve as a baseline model or a template for the detection of machine health problems.  Because of the details of a machine internal variables this model can provide, it can allow the root cause determination of machine faults.

Orthosis modelling and fabrication

Orthoses are planar insoles for countering the constant and permanent deformations caused by muscular or nerve weaknesses. The orthosis fabrication process at VRAM currently involves five labor-intensive stages: the assessment of the gait, the determination of the corrective measures, the evaluation of the orthosis dimensions, the creation of hand-carved molds for forming the orthosis, and the forming and shaping of the orthosis using cork-based materials and resins.

An Integrated GPS/INS/Visual Positioning System for Head-Mounted Devices

The Recon Jet is an eyewear that is targeted towards cyclists and runners. The Recon jet is attractive because it displays the athlete's performance, such as maximum speed and acceleration in real-time using the Recon Jet heads-up display technology. The current Recon Jet has a GPS receiver and onboard sensors that track the athlete position, and velocity, and displays the athlete's ride data on a map. The current Recon Jet GPS receiver and onboard sensors have poor positioning accuracy of the athlete at times when GPS receiver signal reception is lost.

Structural optimization of a conformable pressure tank with membrane loading

Due to abundant reserves and environmental cleanliness, natural gas has introduced the environmentally friendly vehicles - natural gas-powered vehicles (NGVs), which have the potential of providing a solution to air quality problems. However, low volumetric energy density of natural gas results in NGVs’ short-range driving, inhibiting them from widespread adoption. A conformable pressure tank is considered as a solution to the issues of energy density and onboard fuel storage capacity and therefore, the driving range for NGVs.

Modelling and Laser Processing Shape Memory Alloys

The goal of the proposed research project is to perform an in-depth analysis of shape memory alloys through thermal and mechanical testing. This analysis will be used to develop new mathematical models to better predict the performance of the shape memory alloys after they have undergone a manufacturing process that is unique to the partner company. The benefit to the partner company is the usage of these models, which will allow for the design and manufacturing of more reliable and customizable shape memory devices for use in many industries, including biomedical and automobile.

Investigation of In-Situ Flux Effect on Hydride Properties in Zr-2.5Nb Pressure Tubes in CANDU Reactors Year Two

Zr-2.5Nb pressure tubes used in CANDU reactors are susceptible to hydride cracking-induced crack initiation mechanisms, a.k.a delayed hydride cracking or DHC and overload crack initiation. For the integrity assessment of CANDU pressure tubes, it is required to evaluate the likelihood of DHC and overload crack initiation from serviceinduced flaws and to determine whether the pressure tubes are still fit for continued service. The main focus of this proposal is to evaluate the effect of in-situ flux effect on the structure and fracture properties of zirconium hydrides.

Development of New Modeling Tools for Cathodic Protection of Galvanized Structures

Corrosion of electric power transmission and distribution (T&D) lines is a primary cause of in-service equipment degradation. This project aims at analysis, design, and implementation of efficient methods to mitigate the corrosion at T&D infrastructure assets to significantly improve the life span of aging structures, and to develop an accurate design tool for future developments.

Developing a Reliability-Based Life-Cycle Cost Model for Electric Motors

The proposed internship aims to study how the characteristics and reliability of Permanent Magnet Electric Motors (PMs) affect their life-cycle cost (LCC), including initial, maintenance, and energy costs. First, the effect of the variation of design variables on the performance and initial cost of PMs will be assessed and the cost will be correlated to performance. Second, the effect of materials and processes on the reliability and the LCC of PMs will be studied and LCC will be correlated to reliability. The results will be presented to TM4 in form of a detailed database.

Towards a safer and more efficient communication process in aircraft ground deicing

Deicing is a complex process involving many actors including pilots, air traffic controllers and the deicing crew. In this context, communication mistakes can easily happen but can also have terrible consequences. The goal of the research project is to identify high risk areas of communication for aircraft ground deicing. Analyze of the voice interaction between the different actors involved with conversation analysis will be the starting point. After identifying problems in the communication process, the research will propose an improved approach to communication.

Evaluation of Cryogenic Machining and High Pressure Cooling in Turning of Hard-To-Cut Materials

The main objective of this project is to investigate the performance of LiN-cryogenic technologY, as well as, high pressure cooling (HPC) in turning of hard-to-cut aerospace materials. The performance of cryogenic machining and HPC will be compared to flood coolant to establish the optimum conditions for each cooling technique, in terms of material removal rate, tool life, and surface integrity (surface finish, microstructure and residual stresses).

Pages