octacopter

An octa-rotor aircraft and a technology for an aircraft, applied in the field of aircraft, can solve problems such as weak yaw capability, and achieve the effects of improving yaw capability, reducing energy consumption, and improving yaw capability

Inactive Publication Date: 2016-01-06
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of weak yaw ability existing in existing octorotor aircraft, the present invention provides an octorotor aircraft with stronger yaw ability

Method used

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specific Embodiment approach 1

[0044] Specific implementation mode one, as figure 1 As shown, set the center of mass of the aircraft as the origin o of the body coordinate system, the x-axis, y-axis, and z-axis are perpendicular to each other, the y-axis is to the left in the paper, the z-axis is perpendicular to the outside of the paper, and the x-axis is in the paper Up, the xoy plane is divided into four quadrants, the x-axis direction is set as the nose direction of the aircraft, and the z-axis is along the longitudinal plane of the aircraft, pointing upward.

[0045]Four equal-length support arms are detachably mounted on the body 1 through a hinged structure, and each support arm is connected to the avionics system 2. The first support arm 401 and the third support arm 403 are in the body coordinate system xoy plane. The projections of the second support arm 402 and the fourth support arm 404 on the xoy plane of the body coordinate system are collinear, and the projections of the first support arm 401...

specific Embodiment approach 2

[0054] Specific embodiment two, such as image 3 As shown, set the center of mass of the aircraft as the origin o of the body coordinate system, the x-axis, y-axis, and z-axis are perpendicular to each other, the y-axis is to the left in the paper, the z-axis is perpendicular to the outside of the paper, and the x-axis is in the paper Up, the xoy plane is divided into four quadrants, the x-axis direction is set as the nose direction of the aircraft, and the z-axis is along the longitudinal plane of the aircraft, pointing upward.

[0055] Four equal-length support arms are detachably mounted on the body 1 through a hinged structure, and each support arm is connected to the avionics system 2. The first support arm 401 and the third support arm 403 are in the body coordinate system xoy plane. The projections of the second support arm 402 and the fourth support arm 404 on the xoy plane of the body coordinate system are collinear, and the projection of the first support arm 401 and...

specific Embodiment approach 3

[0063] Specific embodiment three, such as Figure 5 As shown, set the center of mass of the aircraft as the origin o of the body coordinate system, the x-axis, y-axis, and z-axis are perpendicular to each other, the y-axis is to the left in the paper, the z-axis is perpendicular to the outside of the paper, and the x-axis is in the paper Up, the xoy plane is divided into four quadrants, the x-axis direction is set as the nose direction of the aircraft, and the z-axis is along the longitudinal plane of the aircraft, pointing upward.

[0064] Four equal-length support arms are detachably mounted on the body 1 through a hinged structure, and each support arm is connected to the avionics system 2. The first support arm 401 and the third support arm 403 are in the body coordinate system xoy plane. The projections of the second support arm 402 and the fourth support arm 404 on the xoy plane of the body coordinate system are collinear, and the projections of the first support arm 401...

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Abstract

The invention relates to an eight-rotor craft relating to the field of crafts and solving the problem of poor yawing capacity of an existing eight-rotor craft. The eight-rotor craft comprises a craft body, an avionics system, a work load module, a landing gear, four support arms connected with the avionics system and spreading at equal angles along the axial circumference of the center of the craft body, and drive units at end parts of the four support arms, wherein the included angle alpha between each support arm and the center shaft of the craft body is equal and is more than 0 DEG and less than 90 DEG, projections of the support arms in an xoy plane are two straight lines which are in axial symmetry intersection, projections of the four drive units in the xoy plane are respectively positioned in four quadrants or x and y positive and negative semiaxes, the included angle theta between the projection of the rotating axis of each drive unit and the z axis is not less than -75 DEG and not more than 75 DEG, except for 0 DEG C, and projections of the rotating axis of the drive units in the xoy plane are vertical to a projection of a connecting line between a rotating center and an original point of a craft body coordinate system in the xoy plane. According to the eight-rotor craft, the yawing moment is improved by one order of magnitude, and the yawing capacity is greatly improved.

Description

technical field [0001] The invention relates to the technical field of aircraft, in particular to an eight-rotor aircraft. Background technique [0002] The eight-rotor aircraft is derived from the traditional four-rotor aircraft, including two structural forms, one is to install eight rotors on the same plane, the other is to install four coaxial rotors on the same plane, and the traditional four-rotor aircraft. In contrast, an eight-rotor aircraft uses eight rotors to generate thrust, which is greater than that generated by four rotors. Therefore, it can carry a larger load. In recent years, a research boom has been set off around the world. [0003] Eight-rotor aircraft, by changing the rotation speed of the eight rotors, generates the lift and torque required for the aircraft to fly, so as to achieve stable hovering and precise flight of the aircraft. From the perspective of motion, the eight-rotor aircraft has six degrees of freedom in space and four possible The four ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64C27/12B64C27/08B64C27/02
Inventor 高庆嘉白越宫勋赵常均孙强
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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