Traveling wave propeller, pump and generator apparatuses, methods and systems
The TRAVELING WAVE PROPELLER, PUMP AND GENERATOR APPARATUSES, METHODS AND SYSTEMS include force or forces applied to an arc-like flexible sheet-like material to create a deformed crenated strip fin with strained-deformations. The strained-deformations take on a sinusoid-like form that express the internal energy state of the flexible sheet-like material after it has been configured into a crenated strip fin. After being incorporated into a mechanism with couplings that prevent the crenated strip fin from returning to its un-strained state, the strained-deformations persist. Actuators may be used to sequentially rotate vertebrae attached to the fins causing the travel of sinusoid-like deformations along the fins. In a fluid medium, the traveling waves of sinusoidal deformations may exert force on the fluid causing the fluid to move and/or creating thrust. Arched blades affixed to the fins facilitate propulsion on hard surfaces such as ice.
1. An articulated mechanism for imparting kinetic energy into a fluid or harnessing energy from a fluid comprising—
a first article comprised of an arched blade affixed to a sheet-like flexible material to which force is applied to create strained deformations expressing the internal energy state of the article,
at least two coupling members connected to the same edge of the first article and to a common member by way of an intermediate transmission assembly,
wherein the coupling members, common member and transmission assembly together constitute a physical restraint that maintains the persistence of strained deformations in the first article,
wherein the transmission assembly allows the first article three degrees of freedom of motion relative to the common member.
2. The mechanism of claim 1 , wherein the common member comprises a chassis.
3. The mechanism of claim 2 , wherein the chassis is coupled by at least one point along its length to at least one harnessing fixture.
4. The mechanism of claim 3 , wherein the harnessing fixture is attached to a vessel.
5. The mechanism of claim 4 , wherein the vessel comprises a submersible craft.
6. The mechanism of claim 4 , wherein the vessel comprises a lighter-than-air craft.
7. The mechanism of claim 3 wherein the harnessing fixture is secured to a fixed substrate.
8. The mechanism of claim 3 , wherein the harnessing fixture is secured to swimmer-wearable equipment.
9. The mechanism of claim 1 , wherein each coupling member is rotatably coupled at one end to the same edge of the first article.
10. The mechanism of claim 9 , wherein each coupling member is rotatably coupled at one end to the same edge of the first article via at least one bearing.
11. The mechanism of claim 1 , wherein each coupling member is rotatably coupled to the transmission assembly.
12. The mechanism of claim 1 , wherein each coupling member comprises a vertebra plate.
13. The mechanism of claim 12 , wherein the vertebra plate comprises a lobed vertebra plate, and the sheet-like flexible material comprises at least two flexible sheets, each of the two flexible sheets being attached to a corresponding lobe of the lobed vertebra plate.
14. The mechanism of claim 1 , wherein the sheet-like flexible material comprises a crenated strip.
15. The mechanism of claim 1 , wherein the plurality of coupling members are coupled, via the intermediate transmission assembly, to at least one transducer.
16. The mechanism of claim 15 , wherein the at least one transducer comprises an electromagnetic motor.
17. The mechanism of claim 15 , wherein the at least one transducer comprises an electromagnetic generator.
18. The mechanism of claim 17 , further comprising:
at least one battery electrically coupled to the electromagnetic generator and configured to store electrical energy generated by the electromagnetic generator.
19. The mechanism of claim 1 , wherein the sheet-like flexible material comprises at least two flexible sheets, and wherein the plurality of coupling members point in a substantially common direction such that the at least two flexible sheets contact a solid substrate whereby the traveling wave of each flexible sheet induces a crawling action.