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Ocean wave energy is a renewable energy source with a large potential that may contribute to increasing demand for power. Traditional conversion system uses hydraulic or air turbine to drive rotary electrical machines. The low efficiency and high cost in the transmission system become significant issues. Using direct-drive structure, linear permanent magnet(PM) machine eliminates intermediate transmission...
In a companion paper published elsewhere [1], we proposed a design approach based on the general redundancy concept to improve the dynamic performance of a mechanism, especially shaking moment and driving torque, while fulfilling the required task. The approach was based on a partial redundancy function of the servomotor, so the approach is called partial redundancy servomotor (PRSM). In this paper,...
This work numerically examines the influences of 2004 Ferrari Formula One race car wing (spoiler) destructions on the overall race car aerodynamics characteristics which are believed to have direct connection to 2004 Ferrari Formula One race car accidents. Based on current study, the pressure distribution on the race car has been analyzed. Also, it has been proven that the installation of the front,...
A chewing machine is required to provide objective measurements of food texture. To do this it must closely simulate human chewing behaviour in terms of kinematics and force application to the food. A linkage chewing machine is developed to reproduce human chewing trajectory in 2D space. This research is aimed at enhancing this chewing machine so it is suitable for food texture analysis. An ATI force...
The object of this study is to develop a set of optimized assembly process parameters for BGA package using 45 nm ELK (extreme Low-K) and CUP (circuit under pad) wafer which is driven by high speed and high I/O requested. Due to chip size shrinkage with electrical performance improvement, most of 0.13 mum and 90 nm wafer process technology are moving toward 65 nm and even 45 nm now. The ELK dielectric...
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