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Full-Text Articles in Mechanical Engineering
Design And Analysis Of A Positively Engaged Continuously Variable Transmission, Brandon Levi Haupt
Design And Analysis Of A Positively Engaged Continuously Variable Transmission, Brandon Levi Haupt
Theses and Dissertations
With energy demands at an all time high, mechanical power systems are under great scrutiny. Substantial efforts are being made throughout the world to reduce energy use in common mechanical systems such as the internal combustion engine and transmission system. Eliminating or reducing efficiency losses in the transmission is a potential source of improving the efficiency of the system. To do so, various alternative types of transmissions are being investigated. At Brigham Young University, development of a Positively Engaged Continuously Variable Transmission (PECVT) is progressing. In addition to the efficiency increases that would occur as a result of operating the …
Achieving Complex Motion With Fundamental Components For Lamina Emergent Mechanisms, Brian Geoffrey Winder
Achieving Complex Motion With Fundamental Components For Lamina Emergent Mechanisms, Brian Geoffrey Winder
Theses and Dissertations
Designing mechanical products in a competitive environment can present unique challenges, and designers constantly search for innovative ways to increase efficiency. One way to save space and reduce cost is to use ortho-planar compliant mechanisms which can be made from sheets of material, or lamina emergent mechanisms (LEMs). This thesis presents principles which can be used for designing LEMs. Pop-up paper mechanisms use topologies similar to LEMs, so it is advantageous to study their kinematics. This thesis outlines the use of planar and spherical kinematics to model commonly used pop-up paper mechanisms. A survey of common joint types is given, …