CN102358428B - Air inlet bulge construction for auxiliary power device of airplane - Google Patents

Air inlet bulge construction for auxiliary power device of airplane Download PDF

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Publication number
CN102358428B
CN102358428B CN 201110232638 CN201110232638A CN102358428B CN 102358428 B CN102358428 B CN 102358428B CN 201110232638 CN201110232638 CN 201110232638 CN 201110232638 A CN201110232638 A CN 201110232638A CN 102358428 B CN102358428 B CN 102358428B
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profile
point
coordinate
bulge
admission port
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CN102358428A (en
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李龙
钟剑龙
张涛
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Xian Aircraft Design and Research Institute of AVIC
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Xian Aircraft Design and Research Institute of AVIC
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Abstract

The invention belongs to the technique of airplane design and relates to an air inlet bulge construction for an auxiliary power device of an airplane. The air inlet bulge construction is characterized in that an air inlet bulge is located in a plane of a fuselage skin of the airplane; the air inlet bulge is protruded from the surface of the fuselage skin; and the air inlet bulge is composed of an air inlet throttle and a fairing. The fairing on the exterior of an air inlet of the air inlet bulge construction is designed into a bulge profile which is blended with the surface of the fuselage skin, thereby being capable of efficiently reducing the aerodynamic drag and the influence of external airflow turbulence along each direction. Streamline curve design is adopted in the air inlet throttle, thereby excellently considering pneumatic properties of external flow and internal flow of the air inlet in opening and closing states.

Description

A kind of aircraft auxiliary power plant admission port bulge structure
Technical field
[0001] the invention belongs to the airplane design technology, relate to a kind of aircraft auxiliary power plant admission port bulge structure.
Background technology
[0002] auxiliary power unit (being called for short APU) is a kind of small-sized turbojet, for aircraft provides accessory feed and auxiliary source of the gas.At present, general APU admission port is designed with three kinds in the world: a kind of for flush type designs, admission port is positioned at airframe profile inside fully, as Boeing series aircraft and space truck series aircraft; A kind of for being fixed on the ram intake design of airframe outside, as Ilyushin-76 aircraft; A kind of is dustpan shaped admission port, and APU when work inlet flap is opened the formation ram intake, and when APU does not work, inlet flap is not closed and concordant with the aircraft outside face, as the ARJ-21 aircraft.The first admission port Configuration Design, the punching press effect is poor; The latter two Configuration Design, admission port is arranged has considerable influence to the pneumatic extrernal resistance of aircraft and External airflow field stability.China's aircraft afterbody equipment compartment both sides aircraft outer mold surface is plane, arrange the APU admission port at this place, both required to have punching press effect preferably, reduce as far as possible again the impact of admission port on the pneumatic extrernal resistance of aircraft and External airflow field stability, therefore above-mentioned three kinds of admission port configurations are not all optimal selections, need to be according to a kind of novel admission port configuration of aircraft configuration characteristic Design.
Summary of the invention
[0003] the objective of the invention is: propose a kind of aircraft auxiliary power plant admission port bulge structure, to solve the needs of aircraft auxiliary power unit admission port design.
[0004] technical solution of the present invention is: a kind of aircraft auxiliary power plant admission port bulge structure, it is characterized in that,
[0005] (1) this admission port bulge is positioned at position, aircraft fuselage skin plane, and the surface at position, fuselage skin plane 3 is protruded in this admission port bulge;
[0006] (2) the admission port bulge is comprised of inlet flap and fairing, the admission port bulge is parallel with the aircraft longitudinal axis in the symmetrical center line of position, fuselage skin plane upslide shadow profile, this projected outline is the tortoise plastron shape, the rear portion that the rear end of admission port bulge projected outline is the tortoise plastron shape, the aft terminal that the A point is the tortoise plastron shape, inlet flap is rectangle at the profile of position, fuselage skin plane upslide shadow, this rectangle is positioned at the inside of above-mentioned admission port bulge projected outline, the front of this rectangle is the front edge of tortoise plastron shape, the B point is this rectangle mid point in front, the back of this rectangle is corresponding with the extreme higher position that position, fuselage skin plane 3 is protruded in the admission port bulge, crossing the straight line that A point and B order is the symmetrical center line of admission port bulge at position, fuselage skin plane upslide shadow profile, the front edge of tortoise plastron shape is vertical with the symmetrical center line of projected outline,
[0007] (3) front of inlet flap forms chain connection by hinge and airframe structure, and two control positioies are closed and opened to inlet flap, and when inlet flap, when closing control position, inlet flap and fairing form the admission port bulge jointly; When inlet flap, when opening control position, inlet flap to fuselage interior rotation alpha angle, forms the part of inlet channel inner flow passage around hinge, α=10 °～30 °;
[0008] (4) when inlet flap when closing control position, the profile coordinate of admission port bulge is as follows: the three-dimensional system of coordinate of setting up the admission port bulge: the A point of take is initial point, crossing the straight line that A point and B order is X-axis, positive dirction is pointed to the B point by the A point, it is heading, position, the fuselage skin plane 3 interior A of the mistake point of take is Y-axis perpendicular to the X-axis straight line, with the left side of being pointed to B point direction by the A point, is oriented to positive dirction, with right-hand rule, determines Z axis; Cross-sectional plane with 10 the parallel plane intercepting admission ports bulge perpendicular to X-axis, the plane-parallel d=L/10 that is spaced apart, L is the distance that A point and B are ordered, the scope of L is got 500mm～1000mm, each cross-sectional plane and bulge profile are crossing obtains a stripe shape surface curve, from the A point to B point direction, by profile curve number consecutively, is No. 1 profile curve to 10 profile curve; Every stripe shape surface curve is divided into to 9 unique points, and the unique point of No. 1 profile curve is numbered A 1-1to A 1-9, the rest may be inferred, and the unique point of No. 10 profile curves is numbered A 10-1to A 10-9, the coordinate of every stripe shape surface curve unique point is as follows:
[0009] the coordinate of No. 1 profile curve unique point:
[0010]?
? A 1-1 A 1-2 A 1-3 A 1-4 A 1-5 A 1-6 A 1-7 A 18 A 1-9
X 0.1L 0.1L 0.1L 0.1L 0.1L 0.1L 0.1L 0.1L 0.1L
Y -0.142L -0.105L -0.071L -0.037L 0 0.037L 0.071L 0.105L 0.142L
Z 0 0.006L 0.022L 0.037L 0.043L 0.037L 0.022L 0.006L 0
[0011] the coordinate of No. 2 profile curve unique points:
[0012]?
? A 2-1 A 2-2 A 2-3 A 2-4 A 2-5 A 2-6 A 2-7 A 2-8 A 2-9
X 0.2L 0.2L 0.2L 0.2L 0.2L 0.2L 0.2L 0.2L 0.2L
Y -0.255L -0.189L -0.128L -0.066L 0 0.066L 0.128L 0.189L 0.255L
Z 0 0.010L 0.039L 0.067L 0.077L 0.067L 0.039L 0.010L 0
[0013] the coordinate of No. 3 profile curve unique points:
[0014]?
? A 3-1 A 3-2 A 3-3 A 3-4 A 3-5 A 3-6 A 3-7 A 3-8 A 3-9
X 0.3L 0.3L 0.3L 0.3L 0.3L 0.3L 0.3L 0.3L 0.3L
Y -0.341L -0.252L -0.171L -0.089L 0 0.089L 0.171L 0.252L 0.341L
Z 0 0.013L 0.052L 0.089L 0.102L 0.089L 0.052L 0.013L 0
[0015] the coordinate of No. 4 profile curve unique points:
[0016]?
? A 4-1 A 4-2 A 4-3 A 4-4 A 4-5 A 4-6 A 4-7 A 4-8 A 4-9
X 0.4L 0.4L 0.4L 0.4L 0.4L 0.4L 0.4L 0.4L 0.4L
Y -0.392L -0.29L -0.196L -0.102L 0 0.102L 0.196L 0.29L 0.392L
Z 0 0.015L 0.059L 0.102L 0.118L 0.102L 0.059L 0.015L 0
[0017] the coordinate of No. 5 profile curve unique points:
[0018]?
? A 5-1 A 5-2 A 5-3 A 5-4 A 5-5 A 5-6 A 5-7 A 5-8 A 5-9
X 0.5L 0.5L 0.5L 0.5L 0.5L 0.5L 0.5L 0.5L 0.5L
Y -0.408L -0.302L -0.204L -0.106L 0 0.106L 0.204L 0.302L 0.408L
Z 0 0.016L 0.062L 0.107L 0.122L 0.107L 0.062L 0.016L 0
[0019] the coordinate of No. 6 profile curve unique points:
[0020]?
? A 6-1 A 6-2 A 6-3 A 6-4 A 6-5 A 6-6 A 6-7 A 6-8 A 6-9
X 0.6L 0.6L 0.6L 0.6L 0.6L 0.6L 0.6L 0.6L 0.6L
Y -0.409L -0.303L -0.205L -0.106L 0 0.106L 0.205L 0.303L 0.409L
Z 0 0.016L 0.061L 0.105L 0.123L 0.105L 0.061L 0.016L 0
[0021] the coordinate of No. 7 profile curve unique points:
[0022]?
? A 7-1 A 7-2 A 7-3 A 7-4 A 7-5 A 7-6 A 7-7 A 7-8 A 7-9
X 0.7L 0.7L 0.7L 0.7L 0.7L 0.7L 0.7L 0.7L 0.7L
Y -0.402L -0.298L -0.203L -0.104L 0 0.104L 0.203L 0.298L 0.402L
Z 0 0.015L 0.059L 0.09L 0.105L 0.09L 0.059L 0.015L 0
[0023] the coordinate of No. 8 profile curve unique points:
[0024]?
? A 8-1 A 8-2 A 8-3 A 8-4 A 8-5 A 8-6 A 8-7 A 8-8 A 8-9
X 0.8L 0.8L 0.8L 0.8L 0.8L 0.8L 0.8L 0.8L 0.8L
Y -0.364L -0.272L -0.187L -0.094L 0 0.094L 0.187L 0.272L 0.364L
[0025]?
Z 0 0.013L 0.052L 0.063L 0.068L 0.063L 0.052L 0.013L 0
[0026] the coordinate of No. 9 profile curve unique points:
[0027]?
? A 9-1 A 9-2 A 9-3 A 9-4 A 9-5 A 9-6 A 9-7 A 9-8 A 9-9
X 0.9L 0.9L 0.9L 0.9L 0.9L 0.9L 0.9L 0.9L 0.9L
Y -0.291L -0.218L -0.147L -0.074L 0 0.074L 0.147L 0.218L 0.291L
Z 0 0.01L 0.024L 0.028L 0.029L 0.028L 0.024L 0.01L 0
[0028] the coordinate of No. 10 profile curve unique points:
[0029]?
? A 10-1 A 10-2 A 10-3 A 10-4 A 10-5 A 10-6 A 10-7 A 10-8 A 10-9
X 1.0L 1.0L 1.0L 1.0L 1.0L 1.0L 1.0L 1.0L 1.0L
Y -0.187L -0.14L -0.094L -0.047L 0 0.047L 0.094L 0.14L 0.187L
Z 0 0 0 0 0 0 0 0 0
[0030] no. 10 the profile curve overlaps with the front edge of tortoise plastron shape projected outline;
[0031] on every stripe shape surface curve, between adjacent feature point, seamlessly transit, between the aft terminal A of tortoise plastron shape and No. 1 profile curve, between adjacent profile curve and the profile between No. 9 profile curves and No. 10 profile curves seamlessly transit.
[0032] advantage of the present invention is: the inlet channel external fairings is designed to and the bulge shape face of transition is merged on aircraft skin surface, can effectively reduce the flight aerodynamic drag and along the outfield flow distortion of all directions.Inlet flap adopts the stream line pattern curved design, has all taken into account preferably outflow and the moving performance of interior gas of inlet channel under the open and close state.
The accompanying drawing explanation
[0033] fig. 1 is axonometric drawing of the present invention.Now, inlet flap is in closed condition.
[0034] fig. 2 is birds-eye view of the present invention.
[0035] fig. 3 is longitudinal sectional view of the present invention.Vertical long and short dash line in figure means cutting plane.
[0036] fig. 4 is the profile curve schematic diagram.
The specific embodiment
[0037] below the present invention is described in further details.Referring to Fig. 1 to Fig. 4, a kind of aircraft auxiliary power plant admission port bulge structure, is characterized in that,
[0038] (1) this admission port bulge is positioned at position, aircraft fuselage skin plane 3, and the surface at position, fuselage skin plane 3 is protruded in this admission port bulge;
[0039] (2) the admission port bulge is comprised of inlet flap 1 and fairing 2, the symmetrical center line of admission port bulge projected outline on position 3, fuselage skin plane is parallel with the aircraft longitudinal axis, this projected outline is the tortoise plastron shape, the rear portion that the rear end of admission port bulge projected outline is the tortoise plastron shape, the aft terminal that the A point is the tortoise plastron shape, the profile of inlet flap 1 projection on position 3, fuselage skin plane is rectangle, this rectangle is positioned at the inside of above-mentioned admission port bulge projected outline, the front of this rectangle is the front edge of tortoise plastron shape, the B point is this rectangle mid point in front, the back of this rectangle is corresponding with the extreme higher position that position, fuselage skin plane 3 is protruded in the admission port bulge, the symmetrical center line that to cross straight line that A point and B order be admission port bulge projected outline on position 3, fuselage skin plane, the front edge of tortoise plastron shape is vertical with the symmetrical center line of projected outline,
[0040] (3) front of inlet flap 1 forms chain connection by hinge and airframe structure, and two control positioies are closed and opened to inlet flap 1, and when inlet flap 1, when closing control position, inlet flap 1 and fairing 2 form the admission port bulge jointly; When inlet flap 1, when opening control position, inlet flap 1 to fuselage interior rotation alpha angle, forms the part of inlet channel inner flow passage around hinge, α=10 °～30 °;
[0041] (4) when inlet flap 1 when closing control position, the profile coordinate of admission port bulge is as follows: the three-dimensional system of coordinate of setting up the admission port bulge: the A point of take is initial point, crossing the straight line that A point and B order is X-axis, positive dirction is pointed to the B point by the A point, it is heading, position, fuselage skin plane [3] the interior A of the mistake point of take is Y-axis perpendicular to the X-axis straight line, with the left side of being pointed to B point direction by the A point, is oriented to positive dirction, with right-hand rule, determines Z axis; Cross-sectional plane with 10 the parallel plane intercepting admission ports bulge perpendicular to X-axis, the plane-parallel d=L/10 that is spaced apart, L is the distance that A point and B are ordered, the scope of L is got 500mm～1000mm, each cross-sectional plane and bulge profile are crossing obtains a stripe shape surface curve, from the A point to B point direction, by profile curve number consecutively, is No. 1 profile curve to 10 profile curve; Every stripe shape surface curve is divided into to 9 unique points, and the unique point of No. 1 profile curve is numbered A 1-1to A 1-9, the rest may be inferred, and the unique point of No. 10 profile curves is numbered A 10-1to A 10-9, the coordinate of every stripe shape surface curve unique point is as follows:
[0042] the coordinate of No. 1 profile curvilinear characteristic point:
[0043]?
? A 1-1 A 1-2 A 1-3 A 1-4 A 1-5 A 1-6 A 1-7 A 1-8 A 1-9
X 0.1L 0.1L 0.1L 0.1L 0.1L 0.1L 0.1L 0.1L 0.1L
Y -0.142L -0.105L -0.071L -0.037L 0 0.037L 0.071L 0.105L 0.142L
Z 0 0.006L 0.022L 0.037L 0.043L 0.037L 0.022L 0.006L 0
[0044] the coordinate of No. 2 profile curvilinear characteristic points:
[0045]?
? A 2-1 A 2-2 A 2-3 A 2-4 A 2-5 A 2-6 A 2-7 A 2-8 A 2-9
X 0.2L 0.2L 0.2L 0.2L 0.2L 0.2L 0.2L 0.2L 0.2L
Y -0.255L -0.189L -0.128L -0.066L 0 0.066L 0.128L 0.189L 0.255L
Z 0 0.010L 0.039L 0.067L 0.077L 0.067L 0.039L 0.010L 0
[0046] the coordinate of No. 3 profile curvilinear characteristic points:
[0047]?
? A 3-1 A 3-2 A 3-3 A 3-4 A 3-5 A 3-6 A 3-7 A 3-8 A 3-9
X 0.3L 0.3L 0.3L 0.3L 0.3L 0.3L 0.3L 0.3L 0.3L
Y -0.341L -0.252L -0.171L -0.089L 0 0.089L 0.171L 0.252L 0.341L
Z 0 0.013L 0.052L 0.089L 0.102L 0.089L 0.052L 0.013L 0
[0048] the coordinate of No. 4 profile curvilinear characteristic points:
[0049]?
? A 4-1 A 4-2 A 4-3 A 4-4 A 4-5 A 4-6 A 4-7 A 4-8 A 4-9
X 0.4L 0.4L 0.4L 0.4L 0.4L 0.4L 0.4L 0.4L 0.4L
Y -0.392L -0.29L -0.196L -0.102L 0 0.102L 0.196L 0.29L 0.392L
Z 0 0.015L 0.059L 0.102L 0.118L 0.102L 0.059L 0.015L 0
[0050] the coordinate of No. 5 profile curvilinear characteristic points:
[0051]?
? A 5-1 A 5-2 A 5-3 A 5-4 A 5-5 A 5-6 A 5-7 A 5-8 A 5-9
X 0.5L 0.5L 0.5L 0.5L 0.5L 0.5L 0.5L 0.5L 0.5L
Y -0.408L -0.302L -0.204L -0.106L 0 0.106L 0.204L 0.302L 0.408L
Z 0 0.016L 0.062L 0.107L 0.122L 0.107L 0.062L 0.016L 0
[0052] the coordinate of No. 6 profile curvilinear characteristic points:
[0053]?
? A 6-1 A 6-2 A 6-3 A 6-4 A 6-5 A 6-6 A 6-7 A 6-8 A 6-9
X 0.6L 0.6L 0.6L 0.6L 0.6L 0.6L 0.6L 0.6L 0.6L
Y -0.409L -0.303L -0.205L -0.106L 0 0.106L 0.205L 0.303L 0.409L
Z 0 0.016L 0.061L 0.105L 0.123L 0.105L 0.061L 0.016L 0
[0054] the coordinate of No. 7 profile curvilinear characteristic points:
[0055]?
? A 7-1 A 7-2 A 7-3 A 7-4 A 7-5 A 7-6 A 7-7 A 7-8 A 7-9
X 0.7L 0.7L 0.7L 0.7L 0.7L 0.7L 0.7L 0.7L 0.7L
[0056]?
Y -0.402L -0.298L -0.203L -0.104L 0 0.104L 0.203L 0.298L 0.402L
Z 0 0.015L 0.059L 0.09L 0.105L 0.09L 0.059L 0.015L 0
[0057] the coordinate of No. 8 profile curvilinear characteristic points:
[0058]?
? A 8-1 A 8-2 A 8-3 A 8-4 A 8-5 A 8-6 A 8-7 A 8-8 A 8-9
X 0.8L 0.8L 0.8L 0.8L 0.8L 0.8L 0.8L 0.8L 0.8L
Y -0.364L -0.272L -0.187L -0.094L 0 0.094L 0.187L 0.272L 0.364L
Z 0 0.013L 0.052L 0.063L 0.068L 0.063L 0.052L 0.013L 0
[0059] the coordinate of No. 9 profile curvilinear characteristic points:
[0060]?
? A 9-1 A 9-2 A 9-3 A 9-4 A 9-5 A 9-6 A 9-7 A 9-8 A 9-9
X 0.9L 0.9L 0.9L 0.9L 0.9L 0.9L 0.9L 0.9L 0.9L
Y -0.291L -0.218L -0.147L -0.074L 0 0.074L 0.147L 0.218L 0.291L
Z 0 0.01L 0.024L 0.028L 0.029L 0.028L 0.024L 0.01L 0
[0061] the coordinate of No. 10 profile curvilinear characteristic points:
[0062]?
? A 10-1 A 10-2 A 10-3 A 10-4 A 10-5 A 10-6 A 10-7 A 10-8 A 10-9
X 1.0L 1.0L 1.0L 1.0L 1.0L 1.0L 1.0L 1.0L 1.0L
Y -0.187L -0.14L -0.094L -0.047L 0 0.047L 0.094L 0.14L 0.187L
Z 0 0 0 0 0 0 0 0 0
[0063] known according to definition, No. 10 profile curves are the front edge line of admission port bulge, on every stripe shape surface curve, between adjacent feature point, seamlessly transit, between the aft terminal A of tortoise plastron shape and No. 1 profile curve, between adjacent profile curve and the profile between No. 9 profile curves and No. 10 profile curves seamlessly transit.
[0064] principle of work of the present invention is: the present invention is based on the aerodynamics groundwork, the configuration design of APU admission port is become to stream line pattern shape face, utilize inlet flap 1 and the bulge of the common formation admission port of fairing 2 profile, bulge and aircraft skin outside face adopt and merge design, guarantee and aircraft skin smooth-shaped transition on every side.Simultaneously, the front of inlet flap 1 forms chain connection by rotating shaft and airframe structure, and inlet flap 1 can be around the shaft moves closing and open between two control positioies.When inlet flap 1, when closing control position, inlet flap 1 and fairing 2 are fully closed, form tortoise plastron shape bulge projection, reduce the impact of admission port fairing on the outer properties of flow of aircraft; When inlet flap 1 turns to while opening control position, form the part of inlet channel inner flow passage, guaranteeing provides to APU the charge air that meets its job requirement.
[0065] embodiment 1
[0066] get L=500mm, the admission port bulge profile parameter obtained is:
[0067] the coordinate of No. 1 profile curvilinear characteristic point:
[0068]?
? A 1-1 A 1-2 A 1-3 A 1-4 A 1-5 A 1-6 A 1-7 A 1-8 A 1-9
X 50 50 50 50 50 50 50 50 50
Y -71 -52.5 -35.5 -18.5 0 18.5 35.5 52.5 71
Z 0 3 11 18.5 21.5 18.5 11 3 0
[0069] the coordinate of No. 2 profile curvilinear characteristic points:
[0070]?
? A 2-1 A 2-2 A 2-3 A 2-4 A 2-5 A 2-6 A 2-7 A 2-8 A 2-9
X 100 100 100 100 100 100 100 100 100
Y -127.5 -94.5 -64 -33 0 33 64 94.5 127.5
Z 0 5 19.5 33.5 38.5 33.5 19.5 5 0
[0071] the coordinate of No. 3 profile curvilinear characteristic points:
[0072]?
? A 3-1 A 3-2 A 3-3 A 3-4 A 3-5 A 3-6 A 3-7 A 3-8 A 3-9
X 150 150 150 150 150 150 150 150 150
Y -170.5 -126 -85.5 -44.5 0 44.5 85.5 126 170.5
Z 0 6.5 26 44.5 51 44.5 26 6.5 0
[0073] the coordinate of No. 4 profile curvilinear characteristic points:
[0074]?
? A 4-1 A 4-2 A 4-3 A 4-4 A 4-5 A 4-6 A 4-7 A 4-8 A 4-9
X 200 200 200 200 200 200 200 200 200
Y -196 -145 -98 -51 0 51 98 145 196
Z 0 7.5 29.5 51 59 51 29.5 7.5 0
[0075] the coordinate of No. 5 profile curvilinear characteristic points:
[0076]?
? A 5-1 A 5-2 A 5-3 A 5-4 A 5-5 A 5-6 A 5-7 A 5-8 A 5-9
X 250 250 250 250 250 250 250 250 250
Y -204 -151 -102 -53 0 53 102 151 204
Z 0 8 31 53.5 61 53.5 31 8 0
[0077] the coordinate of No. 6 profile curvilinear characteristic points:
[0078]?
? A 6-1 A 6-2 A 6-3 A 6-4 A 6-5 A 6-6 A 6-7 A 6-8 A 6-9
X 300 300 300 300 300 300 300 300 300
Y -204.5 -151.5 -102.5 -53 0 53 102.5 151.5 204.5
Z 0 8 30.5 52.5 61.5 52.5 30.5 8 0
[0079] the coordinate of No. 7 profile curvilinear characteristic points:
[0080]?
? A 7-1 A 7-2 A 7-3 A 7-4 A 7-5 A 7-6 A 7-7 A 7-8 A 7-9
X 350 350 350 350 350 350 350 350 350
Y -201 -149 -101.5 -52 0 52 101.5 149 201
Z 0 7.5 29.5 45 52.5 45 29.5 7.5 0
[0081] the coordinate of No. 8 profile curvilinear characteristic points:
[0082]?
? A 8-1 A 8-2 A 8-3 A 8-4 A 8-5 A 8-6 A 8-7 A 8-8 A 8-9
X 400 400 400 400 400 400 400 400 400
Y -182 -136 -93.5 -47 0 47 93.5 136 182
Z 0 6.5 26 31.5 34 31.5 26 6.5 0
[0083] the coordinate of No. 9 profile curvilinear characteristic points:
[0084]?
? A 9-1 A 9-2 A 9-3 A 9-4 A 9-5 A 9-6 A 9-7 A 9-8 A 9-9
X 450 450 450 450 450 450 450 450 450
Y -145.5 -109 -73.5 -37 0 37 73.5 109 145.5
Z 0 5 12 14 14.5 14 12 5 0
[0085] the coordinate of No. 10 profile curvilinear characteristic points:
[0086]?
? A 10-1 A 10-2 A 10-3 A 10-4 A 10-5 A 10-6 A 10-7 A 10-8 A 10-9
X 500 500 500 500 500 500 500 500 500
Y -93.5 -70 -47 -23.5 0 23.5 47 70 93.5
Z 0 0 0 0 0 0 0 0 0
[0087] embodiment 2
[0088] get L=750mm, the admission port bulge profile parameter obtained is:
[0089] the coordinate of No. 1 profile curvilinear characteristic point:
[0090]?
? A 1-1 A 1-2 A 1-3 A 1-4 A 1-5 A 1-6 A 1-7 A 1-8 A 1-9
X 75 75 75 75 75 75 75 75 75
Y -106.5 -78.8 -53.2 -27.8 0 27.8 53.2 78.8 106.5
Z 0 4.5 16.5 27.8 32.2 27.8 16.5 4.5 0
[0091] the coordinate of No. 2 profile curvilinear characteristic points:
[0092]?
? A 2-1 A 2-2 A 2-3 A 2-4 A 2-5 A 2-6 A 2-7 A 2-8 A 2-9
X 150 150 150 150 150 150 150 150 150
Y -191.2 -141.8 -96 -49.5 0 49.5 96 141.8 191.2
Z 0 7.5 29.2 50.2 57.8 50.2 29.2 7.5 0
[0093] the coordinate of No. 3 profile curvilinear characteristic points:
[0094]?
? A 3-1 A 3-2 A 3-3 A 3-4 A 3-5 A 3-6 A 3-7 A 3-8 A 3-9
X 225 225 225 225 225 225 225 225 225
Y -255.8 -189 -128.2 -66.8 0 66.8 128.2 189 255.8
Z 0 9.8 39 66.8 76.5 66.8 39 9.8 0
[0095] the coordinate of No. 4 profile curvilinear characteristic points:
[0096]?
? A 4-1 A 4-2 A 4-3 A 4-4 A 4-5 A 4-6 A 4-7 A 4-8 A 4-9
X 300 300 300 300 300 300 300 300 300
Y -294 -217.5 -147 -76.5 0 76.5 147 217.5 294
Z 0 11.2 44.2 76.5 88.5 76.5 44.2 11.2 0
[0097] the coordinate of No. 5 profile curvilinear characteristic points:
[0098]?
? A 5-1 A 5-2 A 5-3 A 5-4 A 5-5 A 5-6 A 5-7 A 5-8 A 5-9
X 375 375 375 375 375 375 375 375 375
Y -306 -226.5 -153 -79.5 0 79.5 153 226.5 306
Z 0 12 46.5 80.2 91.5 80.2 46.5 12 0
[0099] the coordinate of No. 6 profile curvilinear characteristic points:
[0100]?
? A 6-1 A 6-2 A 6-3 A 6-4 A 6-5 A 6-6 A 6-7 A 6-8 A 6-9
X 450 450 450 450 450 450 450 450 450
Y -306.8 -227.2 -153.8 -79.5 0 79.5 153.8 227.2 306.8
Z 0 12 45.8 78.8 92.2 78.8 45.8 12 0
[0101] the coordinate of No. 7 profile curvilinear characteristic points:
[0102]?
? A 7-1 A 7-2 A 7-3 A 7-4 A 7-5 A 7-6 A 7-7 A 7-8 A 7-9
X 525 525 525 525 525 525 525 525 525
Y -301.5 -223.5 -152.2 -78 0 78 152.2 223.5 301.5
Z 0 11.2 44.2 67.5 78.8 67.5 44.2 11.2 0
[0103] the coordinate of No. 8 profile curvilinear characteristic points:
[0104]?
? A 8-1 A 8-2 A 8-3 A 8-4 A 8-5 A 8-6 A 8-7 A 8-8 A 8-9
X 600 600 600 600 600 600 600 600 600
Y -273 -204 -140.2 -70.5 0 70.5 140.2 204 273
Z 0 9.8 39 47.2 51 47.2 39 9.8 0
[0105] the coordinate of No. 9 profile curvilinear characteristic points:
[0106]?
? A 9-1 A 9-2 A 9-3 A 9-4 A 9-5 A 9-6 A 9-7 A 9-8 A 9-9
X 675 675 675 675 675 675 675 675 675
Y -218.2 -163.5 -110.2 -55.5 0 55.5 110.2 163.5 218.2
Z 0 7.5 18 21 21.8 21 18 7.5 0
[0107] the coordinate of No. 10 profile curvilinear characteristic points:
[0108]?
? A 10-1 A 10-2 A 10-3 A 10-4 A 10-5 A 10-6 A 10-7 A 10-8 A 10-9
X 750 750 750 750 750 750 750 750 750
Y -140.2 -105 -70.5 -35.2 0 35.2 70.5 105 140.2
Z 0 0 0 0 0 0 0 0 0
[0109] embodiment 3
[0110] get L=1000mm, the admission port bulge profile parameter obtained is:
[0111] the coordinate of No. 1 profile curvilinear characteristic point:
[0112]?
? A 1-1 A 1-2 A 1-3 A 1-4 A 1-5 A 1-6 A 1-7 A 1-8 A 1-9
X 100 100 100 100 100 100 100 100 100
Y -142 -105 -71 -37 0 37 71 105 142
Z 0 6 22 37 43 37 22 6 0
[0113] the coordinate of No. 2 profile curvilinear characteristic points:
[0114]?
? A 2-1 A 2-2 A 2-3 A 2-4 A 2-5 A 2-6 A 2-7 A 2-8 A 2-9
X 200 200 200 200 200 200 200 200 200
Y -255 -189 -128 -66 0 66 128 189 255
Z 0 10 39 67 77 67 39 10 0
[0115] the coordinate of No. 3 profile curvilinear characteristic points:
[0116]?
? A 3-1 A 3-2 A 3-3 A 3-4 A 3-5 A 3-6 A 3-7 A 3-8 A 3-9
X 300 300 300 300 300 300 300 300 300
Y -341 -252 -171 -89 0 89 171 252 341
Z 0 13 52 89 102 89 52 13 0
[0117] the coordinate of No. 4 profile curvilinear characteristic points:
[0118]?
? A 4-1 A 4-2 A 4-3 A 4-4 A 4-5 A 4-6 A 4-7 A 4-8 A 4-9
X 400 400 400 400 400 400 400 400 400
Y -392 -290 -196 -102 0 102 196 290 392
Z 0 15 59 102 118 102 59 15 0
[0119] the coordinate of No. 5 profile curvilinear characteristic points:
[0120]?
? A 5-1 A 5-2 A 5-3 A 5-4 A 5-5 A 5-6 A 5-7 A 5-8 A 5-9
X 500 500 500 500 500 500 500 500 500
Y -408 -302 -204 -106 0 106 204 302 408
Z 0 16 62 107 122 107 62 16 0
[0121] the coordinate of No. 6 profile curvilinear characteristic points:
[0122]?
? A 6-1 A 6-2 A 6-3 A 6-4 A 6-5 A 6-6 A 6-7 A 6-8 A 6-9
X 600 600 600 600 600 600 600 600 600
[0123]?
Y -409 -303 -205 -106 0 106 205 303 409
Z 0 16 61 105 123 105 61 16 0
[0124] the coordinate of No. 7 profile curvilinear characteristic points:
[0125]?
? A 7-1 A 7-2 A 7-3 A 7-4 A 7-5 A 7-6 A 7-7 A 7-8 A 7-9
X 700 700 700 700 700 700 700 700 700
Y -402 -298 -203 -104 0 104 203 298 402
Z 0 15 59 90 105 90 59 15 0
[0126] the coordinate of No. 8 profile curvilinear characteristic points:
[0127]?
? A 8-1 A 8-2 A 8-3 A 8-4 A 8-5 A 8-6 A 8-7 A 8-8 A 8-9
X 800 800 800 800 800 800 800 800 800
Y -364 -272 -187 -94 0 94 187 272 364
Z 0 13 52 63 68 63 52 13 0
[0128] the coordinate of No. 9 profile curvilinear characteristic points:
[0129]?
? A 9-1 A 9-2 A 9-3 A 9-4 A 9-5 A 9-6 A 9-7 A 9-8 A 9-9
X 900 900 900 900 900 900 900 900 900
Y -291 -218 -147 -74 0 74 147 218 291
Z 0 10 24 28 29 28 24 10 0
[0130] the coordinate of No. 10 profile curvilinear characteristic points:
[0131]?
? A 10-1 A 10-2 A 10-3 A 10-4 A 10-5 A 10-6 A 10-7 A 10-8 A 10-9
X 1000 1000 1000 1000 1000 1000 1000 1000 1000
Y -187 -140 -94 -47 0 47 94 140 187
Z 0 0 0 0 0 0 0 0 0

Claims (1)

1. an aircraft auxiliary power plant admission port bulge structure, is characterized in that,
(1) this admission port bulge is positioned at position, aircraft fuselage skin plane [3], and the surface at position, fuselage skin plane [3] is protruded in this admission port bulge;
(2) the admission port bulge is comprised of inlet flap [1] and fairing [2], the symmetrical center line of admission port bulge upper projected outline at position, fuselage skin plane [3] is parallel with the aircraft longitudinal axis, this projected outline is the tortoise plastron shape, the rear portion that the rear end of admission port bulge projected outline is the tortoise plastron shape, the aft terminal that the A point is the tortoise plastron shape, the profile of inlet flap [1] upper projection at position, fuselage skin plane [3] is rectangle, this rectangle is positioned at the inside of above-mentioned admission port bulge projected outline, the front of this rectangle is the front edge of tortoise plastron shape, the B point is this rectangle mid point in front, the back of this rectangle is corresponding with the extreme higher position that position, fuselage skin plane [3] is protruded in the admission port bulge, the symmetrical center line that to cross straight line that A point and B order be admission port bulge upper projected outline at position, fuselage skin plane [3], the front edge of tortoise plastron shape is vertical with the symmetrical center line of projected outline,
(3) front of inlet flap [1] forms chain connection by hinge and airframe structure, two control positioies are closed and opened to inlet flap [1], when inlet flap [1], when closing control position, inlet flap [1] and fairing [2] form the admission port bulge jointly; When inlet flap [1], when opening control position, inlet flap [1] to fuselage interior rotation alpha angle, forms the part of inlet channel inner flow passage around hinge, α=10 °～30 °;
(4) when inlet flap [1] when closing control position, the profile coordinate of admission port bulge is as follows: the three-dimensional system of coordinate of setting up the admission port bulge: the A point of take is initial point, crossing the straight line that A point and B order is X-axis, positive dirction is pointed to the B point by the A point, it is heading, position, fuselage skin plane [3] the interior A of the mistake point of take is Y-axis perpendicular to the X-axis straight line, with the left side of being pointed to B point direction by the A point, is oriented to positive dirction, with right-hand rule, determines Z axis; Cross-sectional plane with 10 the parallel plane intercepting admission ports bulge perpendicular to X-axis, the plane-parallel d=L/10 that is spaced apart, L is the distance that A point and B are ordered, the scope of L is got 500mm～1000mm, each cross-sectional plane and bulge profile are crossing obtains a stripe shape surface curve, from the A point to B point direction, by profile curve number consecutively, is No. 1 profile curve to 10 profile curve; Every stripe shape surface curve is divided into to 9 unique points, and the unique point of No. 1 profile curve is numbered A 1-1to A 1-9, the rest may be inferred, and the unique point of No. 10 profile curves is numbered A 10-1to A 10-9, the coordinate of every stripe shape surface curve unique point is as follows:
The coordinate of No. 1 profile curvilinear characteristic point:
? A 1-1 A 1-2 A 1-3 A 1-4 A 1-5 A 1-6 A 1-7 A 1-8 A 1-9 X 0.1L 0.1L 0.1L 0.1L 0.1L 0.1L 0.1L 0.1L 0.1L
Y -0.142L -0.105L -0.071L -0.037L 0 0.037L 0.071L 0.105L 0.142L Z 0 0.006L 0.022L 0.037L 0.043L 0.037L 0.022L 0.006L 0
The coordinate of No. 2 profile curvilinear characteristic points:
? A 2-1 A 2-2 A 2-3 A 2-4 A 2-5 A 2-6 A 2-7 A 2-8 A 2-9 X 0.2L 0.2L 0.2L 0.2L 0.2L 0.2L 0.2L 0.2L 0.2L Y -0.255L -0.189L -0.128L -0.066L 0 0.066L 0.128L 0.189L 0.255L Z 0 0.010L 0.039L 0.067L 0.077L 0.067L 0.039L 0.010L 0
The coordinate of No. 3 profile curvilinear characteristic points:
? A 3-1 A 3-2 A 3-3 A 3-4 A 3-5 A 3-6 A 3-7 A 3-8 A 3-9 X 0.3L 0.3L 0.3L 0.3L 0.3L 0.3L 0.3L 0.3L 0.3L Y -0.341L -0.252L -0.171L -0.089L 0 0.089L 0.171L 0.252L 0.341L Z 0 0.013L 0.052L 0.089L 0.102L 0.089L 0.052L 0.013L 0
The coordinate of No. 4 profile curvilinear characteristic points:
? A 4-1 A 4-2 A 4-3 A 4-4 A 4-5 A 4-6 A 4-7 A 4-8 A 4-9 X 0.4L 0.4L 0.4L 0.4L 0.4L 0.4L 0.4L 0.4L 0.4L Y -0.392L -0.29L -0.196L -0.102L 0 0.102L 0.196L 0.29L 0.392L Z 0 0.015L 0.059L 0.102L 0.118L 0.102L 0.059L 0.015L 0
The coordinate of No. 5 profile curvilinear characteristic points:
? A 5-1 A 5-2 A 5-3 A 5-4 A 5-5 A 5-6 A 5-7 A 5-8 A 5-9 X 0.5L 0.5L 0.5L 0.5L 0.5L 0.5L 0.5L 0.5L 0.5L Y -0.408L -0.302L -0.204L -0.106L 0 0.106L 0.204L 0.302L 0.408L Z 0 0.016L 0.062L 0.107L 0.122L 0.107L 0.062L 0.016L 0
The coordinate of No. 6 profile curvilinear characteristic points:
? A 6-1 A 6-2 A 6-3 A 6-4 A 6-5 A 6-6 A 6-7 A 6-8 A 6-9 X 0.6L 0.6L 0.6L 0.6L 0.6L 0.6L 0.6L 0.6L 0.6L Y -0.409L -0.303L -0.205L -0.106L 0 0.106L 0.205L 0.303L 0.409L Z 0 0.016L 0.061L 0.105L 0.123L 0.105L 0.061L 0.016L 0
The coordinate of No. 7 profile curvilinear characteristic points:
? A 7-1 A 7-2 A 7-3 A 7-4 A 7-5 A 7-6 A 7-7 A 7-8 A 7-9 X 0.7L 0.7L 0.7L 0.7L 0.7L 0.7L 0.7L 0.7L 0.7L Y -0.402L -0.298L -0.203L -0.104L 0 0.104L 0.203L 0.298L 0.402L Z 0 0.015L 0.059L 0.09L 0.105L 0.09L 0.059L 0.015L 0
The coordinate of No. 8 profile curvilinear characteristic points:
? A 8-1 A 8-2 A 8-3 A 8-4 A 8-5 A 8-6 A 8-7 A 8-8 A 8-9 X 0.8L 0.8L 0.8L 0.8L 0.8L 0.8L 0.8L 0.8L 0.8L Y -0.364L -0.272L -0.187L -0.094L 0 0.094L 0.187L 0.272L 0.364L Z 0 0.013L 0.052L 0.063L 0.068L 0.063L 0.052L 0.013L 0
The coordinate of No. 9 profile curvilinear characteristic points:
? A 9-1 A 9-2 A 9-3 A 9-4 A 9-5 A 9-6 A 9-7 A 9-8 A 9-9 X 0.9L 0.9L 0.9L 0.9L 0.9L 0.9L 0.9L 0.9L 0.9L Y -0.291L -0.218L -0.147L -0.074L 0 0.074L 0.147L 0.218L 0.291L Z 0 0.01L 0.024L 0.028L 0.029L 0.028L 0.024L 0.01L 0
The coordinate of No. 10 profile curvilinear characteristic points:
? A 10-1 A 10-2 A 10-3 A 10-4 A 10-5 A 10-6 A 10-7 A 10-8 A 10-9 X 1.0L 1.0L 1.0L 1.0L 1.0L 1.0L 1.0L 1.0L 1.0L Y -0.187L -0.14L -0.094L -0.047L 0 0.047L 0.094L 0.14L 0.187L Z 0 0 0 0 0 0 0 0 0
No. 10 the profile curve overlaps with the front edge of tortoise plastron shape projected outline;
On every stripe shape surface curve, between adjacent feature point, seamlessly transit, between the aft terminal A of tortoise plastron shape and No. 1 profile curve, between adjacent profile curve and the profile between No. 9 profile curves and No. 10 profile curves seamlessly transit.
CN 201110232638 2011-08-15 2011-08-15 Air inlet bulge construction for auxiliary power device of airplane Active CN102358428B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6349899B1 (en) * 2000-04-04 2002-02-26 The Boeing Company Aircraft auxiliary air intake with ram and flush opening door
US6634595B2 (en) * 2002-01-11 2003-10-21 The Boeing Company Method and apparatus for controlling aircraft inlet air flow
CN101168384A (en) * 2006-10-26 2008-04-30 波音公司 High speed moving platform air inlet and method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6349899B1 (en) * 2000-04-04 2002-02-26 The Boeing Company Aircraft auxiliary air intake with ram and flush opening door
US6634595B2 (en) * 2002-01-11 2003-10-21 The Boeing Company Method and apparatus for controlling aircraft inlet air flow
CN101168384A (en) * 2006-10-26 2008-04-30 波音公司 High speed moving platform air inlet and method

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