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Full-Text Articles in Other Engineering Science and Materials

Simulation Of Wave Propagation In Granular Particles Using A Discrete Element Model, Syed Tahmid Hussan Jan 2024

Simulation Of Wave Propagation In Granular Particles Using A Discrete Element Model, Syed Tahmid Hussan

Electronic Theses and Dissertations

The understanding of Bender Element mechanism and utilization of Particle Flow Code (PFC) to simulate the seismic wave behavior is important to test the dynamic behavior of soil particles. Both discrete and finite element methods can be used to simulate wave behavior. However, Discrete Element Method (DEM) is mostly suitable, as the micro scaled soil particle cannot be fully considered as continuous specimen like a piece of rod or aluminum. Recently DEM has been widely used to study mechanical properties of soils at particle level considering the particles as balls. This study represents a comparative analysis of Voigt and Best …


Fabrication Of Soft Gripper Via Direct Inkjet Writing Additive Manufacturing, Evan D. Johnson Jan 2022

Fabrication Of Soft Gripper Via Direct Inkjet Writing Additive Manufacturing, Evan D. Johnson

Electronic Theses and Dissertations

Additive manufacturing (AM) has bloomed recently in the manufacturing field due to its many applications. Direct inkjet writing (DIW) is one of the main am technologies used in the production of grippers. DIW is the most popular taking advantage of materials like silicone and hydrogels. The technology of 3D printing with silicone is still in early stages ,nevertheless, the ability to print with soft materials is very alluring. The implementation of complex geometries in the silicone world would yield vast opportunities in the medical and robotics fields. Additive manufacturing allows for this to be thoroughly examined. In this research these …


Structural And Aerodynamic Design, Procedure And Analysis Of A Small V-Shaped Vertical Axis Wind Turbine, Odari J. Whyte Jan 2018

Structural And Aerodynamic Design, Procedure And Analysis Of A Small V-Shaped Vertical Axis Wind Turbine, Odari J. Whyte

Electronic Theses and Dissertations

Over the last two decades there has been a renewed interest in Vertical Axis Wind Turbines. This turbine configuration though unpopular for large-scale generation has found a niche market in the way of offshore energy harvesting. However, offshore wind has its challenges. In this thesis a detailed comprehensive study of a proposed V-shaped vertical axis turbine rotor is performed in order to examine its structural and aerodynamic characteristics. The design met and exceeded the safety parameters establish for test bed operation, showing a factor of safety of 1.87 with regard to fatigue stress response. A satisfactory fatigue stress design life …