The fact that the second generator module can be caused to oscillate at a frequency higher than the frequency of oscillation of the first part can be useful to enhance to efficiency of the conversion of the energy represented by the oscillation of the first part, into electrical energy. As indicated in WO-2012/017106-A1 and in WO-2014/135551-A1, it may be desirable to synchronise the natural oscillation frequency of the first part with the frequency of appearance of the vortices.
E is Young’s modulus, I is the sectional inertia moment, d is the density of the bar per unit of length, K is the spatial mode of oscillation (the 1st mode and its harmonics) and a is a damping constant. FIG. 18 is a cross sectional top view of a portion of the generator of the embodiment of FIG.
Tipos De Dolor Torácico
FIG. 9 illustrates, schematically, a cross section in the vertical plane of the two sets of magnets of FIGS. In some embodiments of the disclosure, these flexible connecting members have a cross section having a first width in a direction parallel with said axial direction of displacement of the second generator module, and a second width in a direction perpendicular to said axial direction, said second width being larger than said first width. In some embodiments of the disclosure, the second generator module is biased in a first direction by first biasing means, such as by first biasing means comprising magnets and/or springs, the first direction being parallel with the longitudinal axis of the first part.
In some embodiments of the disclosure, the second generator module is biased in a second direction opposite to said first direction by biasing means such as magnets and/or springs. In some embodiments of the disclosure, the second generator module is attached to the first generator module by means of flexible connecting members such as bars or rods of metal (such as titanium or steel), carbon fibre, or similar, selected and arranged to allow for displacement of the second generator module in an axial direction, for example, by bending of the connecting members, but preventing the second generator module from touching the first generator module. In some embodiments of the disclosure, the magnets 30, 31 and 32 mounted on the flexible rod 12 may have ferromagnetic material attached to them to conduct the field lines in a suitable manner for, for example, increasing, within a given space, the number of polarity/direction changes of the magnetic field, to maximize the number of changes of direction of magnetic field to which the coils 50 are subjected during a cycle of oscillation of the pole.
Therefore, a substantially constant drag force 1004 in the direction of the wind and a lift force 1005 substantially perpendicular to the general direction of the wind and to the direction of the drag force are produced on the pole 1. This lift force 1005 switches sign periodically, with a frequency which corresponds to the onset of the vortices, and this force causes the oscillation of the pole 1, towards one side and towards the other side.
Fisioterapia A Domicilio
Obviously, the average velocity of oscillation will be four times the maximum amplitude of oscillation divided by the period (or multiplied by its inverse, the frequency). In some embodiments of the disclosure, the displacing magnets are arranged around and at a distance from the longitudinal axis of the first part, so as to interact with corresponding ones of the displaced magnets during oscillation of the first part, thereby repetitively transferring momentum from the first part to the second generator module. In order to be able to increase this range of wind speeds, a tuning mechanism can be incorporated that modifies the oscillation frequency of the device. 1 and 4, with its magnets 30 and 40, contributes to an automatic increase in the resonance frequency of the pole when the wind speed increases and vice versa. Dolor lumbar al estar de pie . 18, whereas the lower annular frame member 603 of the first generator module 200 is attached to the bottom annular frame member 604 of the second generator module by similar rod-shaped members 608. These rod-shaped members can, for example, be of metal, of carbon fibre, or of any other material featuring sufficient traction and fatigue resistance.
The first generator module likewise comprises two annular frame members 601 and 603. An upper one of said annular frame members 601 is attached to the top annular frame member 602 of the second generator module by rod-shaped elements or connecting members 605 as shown in FIG. FIG. 17 shows the flexible part 12 in the neutral position, that is, extending vertically along the vertical axis 100. Here, the displacing magnets 700 (or 701) attached to the frame 705 are close to the displaced magnets 702 (or 703) arranged at the top of the second generator module 400, thereby biasing the second generator module downwards. H or any other value comprised between 0 and H, expressions that try to represent with different fidelity the distribution of velocities of the air with the height can be introduced. The flexible bottom part has an effective length “L”; the effective length is the length of the flexible bottom part along which the flexible bottom part bends when the rigid top part is oscillating, namely, it is the section of the flexible bottom part between its attachment to the base and its attachment to the rigid top part.
16C, with the difference that each ring of magnets has a heighT corresponding to only one magnet.
Fv is the frequency of appearance of vortices, V the velocity of the air and d the characteristic dimension of the pole, for example, in the case of a pole having a circular cross-section, the diameter of the pole. It can be set as an objective that the frequency of appearance of vortices remains constant at any height. 16C, with the difference that each ring of magnets has a heighT corresponding to only one magnet. In many embodiments of the disclosure, the first part is oscillating at a relatively low frequency, and it can be desirable to produce the displacement between magnet(s) and coil(s) at a higher frequency, to enhance efficient production of electric power. In some embodiments of the disclosure, said at least one first magnet is configured as at least one ring, for example, as several rings at different heights and/or said at least one second magnet is configured as at least one ring, for example, as several rings at different heights.
Dolor Muscular Sin Fiebre
On the other hand, the disclosure is not limited to the specific embodiments that have been described but it also includes, for example, the variants that can be carried out by the person of average skill in the art (for example, regarding the choice of materials, dimensions, components, configuration, etc.), within what follows from the claims. Also, the described embodiment can be regarded as especially advantageous in that there is no friction between moving parts, and there are no roller bearings that require lubrication. The described arrangement of the displaced and the displacing magnets can also be considered especially advantageous, in that the lateral displacement of the displacing magnets can imply that the duration of high repulsive forces between the displacing magnets and the displaced magnets is rather short, whereby the transfer of energy from the first part to the second generator module takes place during a short period, in an impulse-like manner.
This rigid part may include internal reinforcing elements 11 a such as ribs, brackets or beams that provide structural rigidity. In this text, the term “magnet” generally refers to a permanent magnet, although whenever appropriate also electromagnets may be used, as readily understood by the person skilled in the art.
In this text, the word “comprises” and its variants (such as “comprising”, etc.) should not be construed as excluding, that is, they do not exclude the possibility of other elements, steps, etc. In this context, the terms “rigid” and “flexible” are used to indicate that the oscillatory movement is substantially owing to the deformation of the substantially flexible/elastic part and not to any deformation of the substantially rigid part. 16C, but it does not feature the advantages provided by the Halbach effect. The use of the term “module” is not intended to denote a specifically modular character of the generator.
- Levantas demasiado peso por encima de la altura de los hombros o lo llevas alejado del cuerpo
- Depresión cardiorrespiratoria
- Carga excesiva de las articulaciones
- To maximize energy extraction from wind and water flows
- Usa jabones naturales y suaves
The second generator module comprises an top annular frame member 602 on top of the magnets 300, and a bottom annular frame member 604 below the magnets. TECHNICAL FIELD The disclosure pertains to the field of renewable energy and more specifically, to the field of electrical power generation based on the motion of a fluid, from vortices generated in the fluid. The second generator module 200 comprises a plurality of magnets 300 stacked on top of each other and arranged in rings, and the first generator module comprises coils 50 surrounding the magnets at the outside of the second generator module 400, and coils 500 surrounded by the magnets 300, within the second generator module 400. Dolor de espalda y pecho causas . The coils can also be provided with iron or ferromagnetic elements schematically illustrated at 501, to concentrate the magnetic field.