초록 ▼

A forebody 10 for an aeronautical vehicle 12 is provided. The forebody 10 includes an exterior wall 14 having a first half 16 and a second half 18. The first half 16 has a first porous section 20 and the second half 18 has a second porous section 24. The first half 16 and the second half 18 also hav

A forebody 10 for an aeronautical vehicle 12 is provided. The forebody 10 includes an exterior wall 14 having a first half 16 and a second half 18. The first half 16 has a first porous section 20 and the second half 18 has a second porous section 24. The first half 16 and the second half 18 also have a first exterior side 22 experiencing a first fluidic pressure and a second exterior side 26 experiencing a second fluidic pressure, respectively. A hollow inner cavity 28 is fluidically coupled to the first exterior side 22 and the second exterior side 26 and allows fluid passage between the first exterior side 22 and the second exterior side 26 through the first porous section 20, the inner cavity 28, and the second porous section 24. The exterior wall 14 equalizes the first fluidic pressure with the second fluidic pressure. Additional forebodies and methods for performing the same are also provided.

대표청구항 ▼

A forebody 10 for an aeronautical vehicle 12 is provided. The forebody 10 includes an exterior wall 14 having a first half 16 and a second half 18. The first half 16 has a first porous section 20 and the second half 18 has a second porous section 24. The first half 16 and the second half 18 also hav

A forebody 10 for an aeronautical vehicle 12 is provided. The forebody 10 includes an exterior wall 14 having a first half 16 and a second half 18. The first half 16 has a first porous section 20 and the second half 18 has a second porous section 24. The first half 16 and the second half 18 also have a first exterior side 22 experiencing a first fluidic pressure and a second exterior side 26 experiencing a second fluidic pressure, respectively. A hollow inner cavity 28 is fluidically coupled to the first exterior side 22 and the second exterior side 26 and allows fluid passage between the first exterior side 22 and the second exterior side 26 through the first porous section 20, the inner cavity 28, and the second porous section 24. The exterior wall 14 equalizes the first fluidic pressure with the second fluidic pressure. Additional forebodies and methods for performing the same are also provided. ing independently maneuverable. 5. The device according to claim 1, further including a signal- and energy umbilical cable (6) arranged for exchanging control signals and energy between the device and a vessel. 6. The device of claim 5, wherein said vessel is a surface vessel. 7. The device according to claim 1, further including the umbilical cable (6) extending between the vessel and the pump device, and that the pump device (2) includes energy accumulating devices and control devices for the seismic wave source (3). 8. The device according to claim 7, further including a signal- and energy conductor (7) extending from the pump device (2) to the seismic signal source (3). 9. A method for generating seismic shear waves, comprising: arranging a seismic signal source (3) coupled to a base plate (11) having a downwardly extending skirt coupling device (1) on the sea bed for penetrating sea bed sediments; pumping entrapped water out of the coupling device (1), which thereby penetrates deeper into the sea bed sediments by a suction force arising; activating the seismic signal source (3) and generating shear waves which are transmitted via the coupling device (1) and propagated in the sea bed; and after having generated shear waves, pumping water into the coupling device (1) so that it is pressed up from the sea bed as a result of an overpressure arising and becomes released from the sea bed, for repeating the method on other seabed locations. 10. The method according to claim 9, further includes releasing a pumping unit (2) from the seismic signal source (3) such that the coupling device (1) and the seismic signal source (3) remain coupled to the sea bed.