Graph showing Mechanical Resonant Frequency

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... resonance is the tendency of a mechanical system to respond at greater amplitude when the frequency of its oscillations matches the system's natural frequency of vibration (see Figure 2). One approach to achieve this resonance is to induce the phenomenon of Von Kármán vortex shedding. ...

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... simulation parameter distance from the cantilever, the height of the bluff body, and the attack from different configuration arrangements were compared and plotte package for Design Optimization. Figure 2 and 3 show how the lift forc the bluff body and the attacking angle respectively. As seen in these fi the lifting force, which indicate lower threshold wind speed, occur at d and heights from 18mm to 21mm, and attack angle from 5°-8°. ...

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... arrangements were compared and plotted using ANSYS commercial tion. Figure 2 and 3 show how the lift force changes with the position of ing angle respectively. As seen in these figures, the maximum values of ate lower threshold wind speed, occur at distances from 3 mm to 10 mm 1mm, and attack angle from 5°-8°. ...

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... modeling technique works well when there is sufficient experimental data and all non-dimensionalized parameters predictions can be made through this extensive collection. The following flowchart (Figure 22) explains a simple procedure that can be followed to predict amplitudes for simple, complex and for this thesis inclined plates. ...

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... large number of both experimental and numerical studies of flow past circular cylinders have been carried out [32]. The flow around other cross-sectional shapes, such as square cylinders, flat plates, and airfoils, also provide considerable interesting flow mechanisms (see Figure 24 [32]). A great feature of these inclined flat plate bluff bodies are the different angles of attack that have a substantial impact on the Strouhal number and intern the frequency of vortex shedding (see Figure 25 [34]). ...

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... and Figure 26. Inclined flat plate investigated setup ...

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... momentum equations are advanced in time by fractional time stepping using a second-order Runge-Kutta scheme. This computational modeling approach and similar time-step scheme have been used by a number of researchers and developers and it was found that the wake was dominated by a train of counterclockwise vortices shed from the trailing edge of the plate as seen in Figure 27 [35][36][37][38][39][40][41][42][43]. They also confirmed comparable results by varying parameters like plate width, flow velocity and angle of attack. ...

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... next chapter will discuss a numerical scheme that utilizes a combination of two inclined plates and through experimental analysis proves a system that can successfully generate power. and angles A1 and A2 (see Figure 28). ...

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... was chosen as the working fluid considering all its standard properties. Figures 29, 30 and 31 show the computational domain, boundary conditions, and the mesh density. A total of 8312 cells were used in the whole domain. ...

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... analysis was done on the optimized lighter harvester using Dassault Systèmes -ABAQUS. The part was created comparable to Figure 28 and then sectioned into two components. The first component was the mechanical resonator made of aluminum having a density of The two structures were then assembled and a linear perturbation frequency time step was set to probe Eigen values corresponding to different modes of vibration. ...

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... capture shown in Figure 61 shows an instant in time where the generators are in phase with each other. The DC voltage is measured after connecting the generators in series and is described in Figure 62. These measurements were also done for all ranges if wind speeds and can be found in APPENDIX E. The results of power production using the Array is as follows: ...