1. A trimaran boat, comprising:
a pair of sidehulls;
a center hull positioned between the pair of sidehulls; and
a deck extending substantially continuous from one sidehull across the center hull to the other sidehull;
wherein the pair of sidehulls each have a length less than half a length of the center hull, a transom of each sidehull is generally flush with a transom of the center hull, a design water line length of the boat is about 36 to about 38 feet, a beam of the boat is about 15 feet, the center hull has a beam width of about 3.5 feet, and a centerline of each sidehull is about 7 feet from a centerline of the center hull.
2. A trimaran boat, comprising:
a pair of sidehulls;
a center hull positioned between the pair of sidehulls; and
a deck extending substantially continuous from one sidehull across the center hull to the other sidehull.
3. The trimaran boat of claim 2, wherein the pair of sidehulls each have a length less than half a length of the center hull.
4. The trimaran boat of claim 2, wherein a transom of each sidehull is generally flush with a transom of the center hull.
5. The trimaran boat of claim 2, wherein the deck is configured to store a plurality of lobster pots.
6. The trimaran boat of claim 2, wherein operating at about 16 knots the boat has about a 20% lower power requirement than a comparable monohull boat.
7. The trimaran boat of claim 2, wherein a design water line length of the boat is about 36 to about 38 feet.
8. The trimaran boat of claim 2, wherein the center hull has a beam width of about 3.5 feet.
9. The trimaran boat of claim 2, wherein a centerline of each sidehull is about 7 feet from a centerline of the center hull.
10. The trimaran boat of claim 2, wherein a beam of the boat is about 15 feet.
11. The trimaran boat of claim 2, wherein an engine is positioned in the center hull.
12. The trimaran boat of claim 2, wherein the center hull has a keel and a draft of about 4 feet and 1 in.
13. The trimaran boat of claim 2, wherein the boat has about a 100 horsepower engine and with a displacement of about 12,000 lbs and a propeller efficiency of 65%, the boat consumes about 5.3 gallons per hour of fuel or less operating at about 16 knots.
14. The boat hull of claim 2, wherein the boat has about a 200 horsepower engine and with a displacement of about 12,000 lbs and a propeller efficiency of 65%, the boat consumes about 10.3 gallons per hour of fuel operating at about 20 knots.
15. A boat hull comprising:
a pair of sidehulls;
a center hull positioned between the pair of sidehulls; and
a deck extending substantially continuous from one sidehull across the center hull to the other sidehull;
a pair of center hull transitions and a pair of sidehull transitions;
wherein a transom of each sidehull is v-shaped.
16. The boat hull of claim 15, wherein the pair of sidehulls each have a length less than half a length of the center hull and are positioned outboard and aft at each side of the hull such that the transom of the sidehulls is generally aligned the transom of the center hull.
17. The trimaran boat of claim 15, wherein operating between a speed-length ratio of about 2.67 to about 3.33 provides a maximum energy efficiency.
18. The boat hull of claim 15, wherein operating between a Froude number of about 0.80 to about 1.00 minimizes the power requirement for the hull.
19. The boat hull of claim 15, wherein the sidehulls are configured and positioned to cut through a bow wave created by the center hull, thereby reducing spray.
20. The boat hull of claim 15, wherein the hull has a lower powering requirement than a comparable monohull boat experiencing the same conditions when it has a displacement of less than about 16,000 lbs and operating in a speed range of about 10 knots to about 20 knots.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A physical feedback system, comprising:
at least one physical feedback unit below a flexible touch screen;
wherein the physical feedback unit comprises an armature part and a coil part, at least one of the armature part and the coil part is in an active state, and a relative distance between the armature part and the coil part is initially a predetermined value; and
when the coil part is energized with a current, the relative distance between the armature part and the coil part is changed due to electromagnetism, and the changed relative distance is greater than or less than a predetermined value, so that a protrusion or a depression is formed at a corresponding position of the flexible touch screen.
2. The physical feedback system according to claim 1, wherein when the coil part is energized with a positive current, the relative distance between the armature part and the coil part is changed to a first value due to electromagnetism, and the first value is greater than the predetermined value, so that the protrusion is formed at the corresponding position of the flexible touch screen; and
when the coil part is energized with a negative current, the relative distance between the armature part and the coil part is changed to a second value due to electromagnetism, and the second value is less than the predetermined value, so that the depression is formed at the corresponding position of the flexible touch screen.
3. The physical feedback system according to claim 1, wherein the number of the physical feedback unit is two or more, the physical feedback units are tessellated below an entire or a partial region of the flexible touch screen, and a projection shape of each physical feedback unit on a plane of the flexible touch screen is a polygon;
wherein the polygon comprises a square andor a regular hexagon.
4. The physical feedback system according to claim 3, wherein the physical feedback units are tessellated on multilayered planes adjacent from top to bottom below the entire or partial region of the flexible touch screen, and the projection shape of the physical feedback unit located in a lower layer on the plane of the flexible touch screen is greater than or equal to the projection shape of the physical feedback unit located in an upper layer on the plane of the flexible touch screen.
5. The physical feedback system according to claim 3, wherein one or more of the physical feedback units is any one of the four physical feedback units as follows:
a first type physical feedback unit comprising a housing, a coil part within a lower portion of the housing and in a stationary state, and an armature part within an upper portion of the housing and in an active state, the armature part being an electromagnet or a permanent magnet, and the armature part being connected with the coil part through a spring;
a second type physical feedback unit comprising a housing, a tubular coil part in a lower portion of the housing and in a stationary state, and a cylindrical armature part in a cavity of the tubular coil part and in an active state, the cylindrical armature part being an electromagnet or a permanent magnet, and a lower portion of the cylindrical armature part being connected with the housing through a spring;
a third type physical feedback unit comprising a housing, an armature part in a lower portion of the housing and in a stationary state, and a coil part in an upper portion of the housing and in an active state, the armature part being a permanent magnet, and the armature part being connected with the coil part through a spring; and
a fourth type physical feedback unit comprising a housing, a tubular armature part in a lower portion of the housing and in a stationary state, and a cylindrical coil part in a cavity of the tubular armature part and in an active state, the tubular armature part being a permanent magnet, and a lower portion of the cylindrical coil part being connected with the housing through a spring.
6. The physical feedback system according to claim 2, wherein the number of the physical feedback unit is two or more, the physical feedback units are tessellated below an entire or a partial region of the flexible touch screen, and a projection shape of each physical feedback unit on a plane of the flexible touch screen is a polygon;
wherein the polygon comprises a square andor a regular hexagon.
7. A method for controlling a physical feedback system in an electronic device comprising a flexible display screen and the physical feedback system according to claim 1, the method comprising:
detecting whether a display graph on the flexible touch screen is the same as a predetermined graph, the predetermined graph comprising any one or a combination of a button, a frame, a tag, a menu, a hyperlink and an icon; and
if it is detected that the display graph is the same as the predetermined graph, energizing a physical feedback unit below the display graph with a current, so that a relative distance between the armature part and the coil part in the physical feedback unit is changed due to electromagnetism.
8. The method according to claim 7, wherein before energizing the physical feedback unit below the display graph, the method further comprises:
inquiring a current attribute corresponding to the display graph from a pre-stored corresponding correlation between the predetermined graph and the current attribute according to the display graph, the current attribute comprising a current direction and a current value; and
wherein energizing the physical feedback unit below the display graph comprises:
energizing the physical feedback unit below the display graph according to the inquired current attribute corresponding to the display graph.
9. The method according to claim 7, wherein after energizing the physical feedback unit below the display graph, the method further comprises:
detecting whether the current is changed; and
if it is detected that the current is changed, changing the display graph on the flexible touch screen according to a value change of the current.
10. The method according to claim 8, wherein after energizing the physical feedback unit below the display graph, the method further comprises:
detecting whether the current is changed; and
if it is detected that the current is changed, changing the display graph on the flexible touch screen according to a value change of the current.
11. The method according to claim 7, wherein after energizing the physical feedback unit below the display graph, the method further comprises:
detecting whether the current is changed; and
if it is detected that the current is changed, adjusting the current according to a value change of the current.
12. The method according to claim 8, wherein after energizing the physical feedback unit below the display graph, the method further comprises:
detecting whether the current is changed; and
if it is detected that the current is changed, adjusting the current according to a value change of the current.
13. The method according to claim 11, wherein before adjusting the current according to the value change of the current, the method further comprises:
inquiring a current attribute corresponding to the value change of the current from a pre-stored corresponding correlation between the value change and the current attribute according to the value change, the current attribute comprising the current direction and the current value; and
adjusting the current according to the value change of the current comprises:
adjusting the current according to the inquired current attribute corresponding to the value change of the current.
14. An electronic device for controlling a physical feedback system according to claim 1, comprising:
a processor;
a flexible display screen; and
a memory for storing instructions executable by the processor,
wherein the processor is configured to:
detect whether a display graph on the flexible touch screen is the same as a predetermined graph, the predetermined graph comprising any one or a combination of a button, a frame, a tag, a menu, a hyperlink and an icon; and
if it is detected that the display graph is the same as the predetermined graph, energize a physical feedback unit below the display graph with a current, so that a relative distance between the armature part and the coil part in the physical feedback unit is changed due to electromagnetism.
15. The electronic device according to claim 14, wherein the processor is further configured to:
inquire a current attribute corresponding to the detected display graph from a pre-stored corresponding correlation between the predetermined graph and the current attribute according to the display graph, the current attribute comprising a current direction and a current value; and
energize the physical feedback unit below the display graph according to the inquired current attribute corresponding to the display graph.
16. The electronic device according to claim 14, wherein the processor is configured to:
detect whether the current is changed; and
if it is detected that the current is changed, change the display graph on the flexible touch screen according to a value change of the current.
17. The electronic device according to claim 15, wherein the processor is configured to:
detect whether the current is changed; and
if it is detected that the current is changed, change the display graph on the flexible touch screen according to a value change of the current.
18. The electronic device according to claim 14, wherein the processor is configured to:
detect whether the current is changed; and
if it is detected that the current is changed, adjust the current according to a value change of the current.
19. The electronic device according to claim 15, wherein the processor is configured to:
detect whether the current is changed; and
if it is detected that the current is changed, adjust the current according to a value change of the current.
20. The electronic device according to claim 18, wherein the processor is configured to:
inquire a current attribute corresponding to the value change of the current from a pre-stored corresponding correlation between the value change and the current attribute according to the value change, the current attribute comprising a current direction and a current value; and
adjust the current according to the inquired current attribute corresponding to the value change of the current.