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BASIC PROTOTYPE MVP (MINIMUM VIABLE PRODUCT) |
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The prototype will have the 2 following parts:
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1.- SERVO- PRESS.
We need to apply efforts of up to 15.000 N (1.529 Kg) at high speed, in the form of high frequency pulses (Simulating the shock absorber of a car but with control of force and speed of application of force). Characteristics:
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1.1.- Force adjustment in 100 N intervals from 0 N to 20.000 N
1.2.- Speed adjustment of effort application (Need to apply forces at high speeds)
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2.- PIEZOELECTRIC GENERATOR
To demonstrate the great efficiency of the patented piezoelectric generator system, it is necessary to develop a generator capable of reaching a power of 10 KW.
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2.1.- Array connection.- Generator formed by a connection matrix with 200 sets connected in parallel, and where each set has 15 piezoelectric modules connected in series. Total 3.000 piezoelectric modules.
2.2.- Fixing plate.- It is necessary to develop and mechanize a fixing plate to couple the 3.000 piezoelectric elements. This fixing plate can be fixed to the base of the Servo-press. The type of material to be used should be non-conductive, to avoid the arc jumping between piezoelectric elements.
2.3.- Activation plate.- It is necessary to develop and mechanize an activation plate that can be coupled to the upper part of the Servo-press that transmits the effort, in order to distribute the force applied by the press among the 3.000 piezoelectric elements uniformly, so that they all receive the same amount of force at the same moment and at the same speed. The type of material to be used should be non-conductive, to avoid the arc jumping between piezoelectric elements.
2.4.- AC/DC Converters and electronic for array connection.- It is necessary to develop and realize the electronic circuits corresponding to the 3.000 AC/DC converters for the 3.000 output signals of the piezoelectric elements, in addition to the electronics necessary to make the connection matrix between them. At least the necessary electronics must be developed to convert the output signals that will be found in the output of the piezoelectric elements for the different 14 expected application forces.
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Adjust the application speed of the force to have an output current:
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We will perform tests applying different magnitudes of force on each piezoelectric element:
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As a consequence of the different applied forces, we will have different output voltages in each piezoelectric element (Eji,i):
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After this converter AC/DC, considering a 5% reduction, we will have the following different output DC voltage Vji,i depending of the different applied forces.
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Considering for example 20 times the number of sets than the number of modules in each set, because we are interested to increase the intensity much more than the voltage:
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Considering that all piezoelectric elements must receive the same force, at the same speed, at the same moment, then for this matrix of 3.000 piezoelectric elements we must apply a total force in the generator of:
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Then the output Voltage and the Output current of our piezoelectric generator is: Vout = Vji,i x j and Iout = Iji,i x i
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And consequently: Pout = Vout x Iout
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DIMENSIONS |
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RECTANGULAR CONFIGURATION
Total Piezoelectric number in this configuration = 3.000
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RING CONFIGURATION
- Perimeter of internal circumference = 501 mm
- Internal circumference radius = 501 mm / (2 x p) = 79,74 mm
- Internal circumference diameter = 159,48 mm
- Ring thickness = 38,5 mm
- External circumference radius = 79,74 mm + 38,5 mm = 118,24 mm
- External circumference diameter = 236,48 mm |
