FRAME FUSELAGE STATION 177.2 (Drawing 143F079) The frame at Fuselage Station 177.2 functions as a stiffening member for the fuel cell liner. /S /Tabelle_content For example, rotorcraft consist of engines, rotors, drive shafts, endobj >> /Pg 30 0 R << << 160 0 obj If you scaled a standard 355mL beverage can proportionally to a cylinder of diameter equal to the fuselage of something like a B737 (imagine exactly a pop can the size of an aircraft), you would find that the pop can would have a wall thickness several times (2-4) thicker than the aircraft. /P 430 0 R /K 2 /Lang (EN-US) 229 0 obj /K 183 151 0 obj 50 0 obj << /GS0 288 0 R /K 181 endobj /Type /Page /P 17 0 R << /Lang (EN-GB) /A 513 0 R >> /StructParents 18 >> The main rotor, of course, is the most important part of a helicopter. >> /S /Subscript /Parent 15 0 R /A 446 0 R /Lang (EN-GB) /K 64 << /P 613 0 R /K 59 May 23, 2021 . 257 0 obj /Lang (EN-GB) /A 520 0 R -movement about this axis is called pitch and is controlled by the cyclic stick, -provides power to drive rotors and related systems of the helicopter /CS1 [/ICCBased 306 0 R] /S /Normal /Type /Pages >> 177 0 obj endobj << << Provides data that is required by the CIPS unit for blade tracking analysis, Mounted accelerometers on or around the component under test provide to the CIPS the data required to calculate a balance or soothing solution, Helicopter flying handbook, ch 1-3 intro / Ae, Introduction to Chemical Engineering Thermodynamics, Hendrick Van Ness, J.M. /P 576 0 R /TT1 289 0 R endobj /ColorSpace << /S /Normal /Lang (EN-GB) endobj hYmO6+} tBZ`yJ{VVU 5AIh}q}9D"4=i&Xdq,,6,pLX35c&LE)#1J3Q2"PDs3@1GK&'yK&Bo>|>:=. , " "" ( " ""), Messerschmitt-Boelkow-Blohm Gmbh, 8012 Ottobrunn, De, Helicopter design, enabling production of family of different length helicopters, Joints between a composite skin and a load-bearing component and methods of forming same, Rotorcraft fuselage structure incorporating a load-bearing middle floor interposed between a cabin space and an equipment space, Ventral beam in the form of a tuning fork for an aircraft with a ventral hold, Design method for main speed reducer connecting stay bar of coaxial rotor helicopter, Helicopter removable drive train platform, NOSE AUXILLARY LIGHT, CARRIER STRUCTURE AND AIRCRAFT WITH A ROTARY SAIL, CARRIER STRUCTURE AND AIRCRAFT WITH ROTATING WING, Composite thermoplastic matrix airframe structure and method of manufacture therefore. /CropBox [0.0 0.0 595.32 841.92] 123 0 obj /K 15 endobj /Lang (EN-GB) endobj /Fm0 295 0 R /K 1 Additionally, a horizontal member called a stabilizer is often constructed at the tail cone or on the pylon. 202 0 obj 101 0 obj >> >> /Strong /Span << /Resources << /Lang >> /Pg 35 0 R /P 17 0 R /Type /Page The frames and stringers are spaced in such a way to ensure that the resulting bays that are created support the skins against buckling. >> /CS0 [/ICCBased 287 0 R] << /S /Subscript << /Lang (EN-GB) endobj << >> << The frame is made from very strong . /Parent 14 0 R >> /K 6 /Parent 5 0 R 29 0 obj /Parent 4 0 R /Lang (DE-DE) >> /Lang (EN-GB) /A 403 0 R /S /Artifact /Pg 33 0 R /Pg 30 0 R >> /P 505 0 R >> /Pg 35 0 R /K 101 /Pg 35 0 R /Count 4 endobj /Mendeley#20Recent#20Style#20Name#201_1 (American Political Science Association) /CropBox [0.0 0.0 595.32 841.92] 18 0 obj /K [0 271 0 R] >> /TT2 290 0 R << /S /Tabelle_content >> >> 125 0 obj /K 15 >> /S /Tabelle_content 46 0 obj /K 57 /CropBox [0.0 0.0 595.32 841.92] The invention relates to a helicopter fuselage of the type including a central structure to which are linked a front structure, a rear structure and a landing gear, and which supports a transmission gearbox, a main rotor and at least one engine (50), and of the type in which the central structure includes a skeleton (16) fitted with covering elements which define the external shape of the . /Sh15 345 0 R 154 0 obj 5 0 obj 68 0 R 123 0 R 68 0 R 124 0 R 70 0 R 125 0 R 70 0 R 126 0 R] /P 17 0 R >> /Parent 14 0 R >> /Parent 13 0 R /A 611 0 R >> /P 545 0 R /CS1 [/ICCBased 306 0 R] endobj << >> endobj Landing loads introduced into the fuselage can be particularly severe if the landing is executed poorly. >> /Pg 35 0 R /P 46 0 R H|SMo0+, Structural Analysis of Rotorcraft Fuselage in a Multidisciplinary Environment. >> /P 17 0 R 149 0 obj /S /Normal /Rotate 0 /A 487 0 R /K 61 /A 560 0 R << << >> /Subtype /Type1 /Mendeley#20Recent#20Style#20Id#206_1 (http://www.zotero.org/styles/ieee) /P 17 0 R 295. endobj << /Lang (EN-GB) /S /P The company's customer base consists of the world's leading aerospace OEMs, and more than 80 percent of its . << /S /Span /P 425 0 R >> /K 1 Products include fuselages, wings, empennages, nacelles and helicopter cabins. May or may not actuate during blade folding, -self exited vibration, which occurs on the ground endobj >> 215 0 obj /Annots [301 0 R] >> /Lang (EN-GB) >> 222 0 obj /Helv 9 0 R /Pg 25 0 R >> /igrave /iacute /icircumflex /idieresis /eth /ntilde /ograve /oacute /ocircumflex /otilde Li Yuan is an academic researcher. /Pg 24 0 R /Pg 35 0 R /ColorSpace << /Pg 36 0 R endobj /ExtGState << 23 0 obj Graphite-epoxy is one of several types of composite materials that are becoming widely used for many aircraft structures and components. 204 0 obj /ExtGState << >> helicopter frames consist of the fuselage. True /P 73 0 R /K 26 /P 532 0 R << /S /Subscript endobj 1. iis express not working with ip address. /Type /Page /K 9 << << /K 117 /Lang (EN-GB) /S /Tabelle_content /A 482 0 R >> /P 640 0 R >> /Fm2 297 0 R Numerous designs and variations on the three types of main rotor systems exist. /K [6 124 0 R 14 125 0 R 16 126 0 R] << endobj << 47 0 obj /Pg 35 0 R One or more horizontal hinges provide for flapping on a fully articulated rotor system. >> /MediaBox [0.0 0.0 595.32 841.92] /MediaBox [0.0 0.0 595.32 841.92] /Pg 35 0 R /CS0 [/ICCBased 287 0 R] /Pg 41 0 R /P 657 0 R /P 436 0 R /MediaBox [0.0 0.0 595.32 841.92] helicopter frames consist of the fuselage. endobj /Heading#201 /H1 /Lang (EN-GB) /Rotate 0 >> /RoleMap 19 0 R They are designed to take up the forces of blade hunting and dissymmetry of lift by flexing. /Sh10 340 0 R << /P 667 0 R /Pg 41 0 R /Pg 35 0 R /K 157 >> %PDF-1.6 % endobj /A 573 0 R /P 415 0 R /S /Tabelle_content http://www.zotero.org/styles/american-medical-association /K 83 /P 17 0 R /K 13 5. /S /Artifact /S /Tabelle_content /Fm0 295 0 R 273 0 obj endobj 241 0 obj These forces are often offset by carrying fuel in the wings or employing wing-tip-mounted fuel tanks; the Cessna 310 is an example of this design feature. /Shading << 43 0 obj Typically, a composite component consists of many layers of fiber-impregnated resins . >> 228 0 obj /Pg 35 0 R /Sh0 315 0 R endobj /S /Subscript /Pg 30 0 R Similar to a vertical stabilizer on the empennage of an airplane, a fin or pylon is also a common feature on rotorcraft. /Pg 35 0 R >> endobj 55 0 obj Install and secure the hardware onto the front mounting bracket. /K 11 237 0 obj << /ColorSpace << /Pg 24 0 R /Pg 35 0 R << /Lang (EN-GB) 118 0 obj /Fm4 299 0 R << Typically, a composite component consists of many layers of fiber-impregnated resins, bonded to form a smooth panel. /P 17 0 R /P 17 0 R /CropBox [0.0 0.0 595.32 841.92] 19 0 obj /Mendeley#20Recent#20Style#20Id#201_1 (http://www.zotero.org/styles/american-political-science-association) /A 476 0 R >> /Pg 24 0 R A semi-monocoque structural design is usually favoured; where the sub-structure and the skins work together to absorb and transfer the loads generated during flight. /Lang (EN-GB) << /P 538 0 R 116 0 obj /TT1 289 0 R /Fm2 297 0 R Panels were made with the same geometrical shape and dimensions but . Welcome to part two in this five-part series on airframe structures. /P 599 0 R /A 645 0 R /P 583 0 R /S /GoTo /S /Subscript >> The wing is covered in part three, flaps in part four, and the tail in part five. American Political Science Association The author has contributed to research in topic(s): Tail rotor & Drive shaft. 64 0 obj >> The large rotating mass of the main rotor blades of a helicopter produce torque. >> /S /Normal The fuselage generates its own aerodynamic loads during flight which must be reacted by the structure. /Pg 35 0 R /K 1 /P 540 0 R << /P 17 0 R /Fm1 296 0 R /P 17 0 R >> >> /P 17 0 R >> >> /K 62 /Sh8 326 0 R /Lang (EN-GB) >> endobj /A 661 0 R 102 0 obj 107 0 obj 155 0 obj >> /S /Author /SourceModified (D:20170502160949) /S /Tabelle_content /TT2 303 0 R /Lang (EN-GB) 244 0 obj >> /S /Heading#201 /Tabs /S There are four major systems in a full scale rocket; the structural system, the payload system, the guidance system, and the propulsion system . /Lang (EN-GB) null 97 0 R 98 0 R] Insert the heli into the fuselage and reassemble the tail rotor assembly. << /Sh6 324 0 R >> /Lang (EN-US) /Rotate 0 /P 559 0 R /S /formula << It is of all-metal semimonocoque construction, consist of an aluminum and titanium skin over a reinforced aluminum frame. >> << /Pg 42 0 R /P 118 0 R /Lang (EN-GB) /A 650 0 R /D [41 0 R /XYZ 104 373 0.0] /K 2 endobj endobj /K 180 200 0 obj endobj /K 4 1. endobj 209 0 obj /Pg 35 0 R http://www.zotero.org/styles/modern-humanities-research-association /K 30 endobj >> /CS0 [/ICCBased 287 0 R] /Lang (EN-GB) /Contents 337 0 R Lift and control are relatively independent of what? 13 0 obj endobj /A 387 0 R 229 0 R 230 0 R 231 0 R null 232 0 R null 233 0 R 234 0 R 235 0 R 236 0 R >> /K 88 /S /Normal Fuselage The main body of the helicopter is known as the fuselage. Other important ight subsystems, illustrated in Figure 1.1, are the horizontal tail, the vertical tail, and the engines. endobj >> /Pg 35 0 R /Artifact /P /K 142 /Lang (EN-GB) /Differences [24 /breve /caron /circumflex /dotaccent /hungarumlaut /ogonek /ring /tilde 39 >> endobj >> Design process) /ColorSpace << /XObject << /S /Normal << /Lang (EN-GB) /Fm3 298 0 R >> /MediaBox [0.0 0.0 595.32 841.92] /Lang (EN-GB) /S /Normal /K 133 /Mendeley#20Recent#20Style#20Name#208_1 (Modern Language Association 7th edition) << >> /TT1 312 0 R endstream endobj 53 0 obj <> endobj 54 0 obj <>/Font<>/ProcSet[/PDF/Text]/Properties<>>>/Rotate 0/Type/Page>> endobj 55 0 obj <>stream /Next 23 0 R /P 426 0 R This low pressure causes a force counter to the torque produced by the main rotor. /K 51 /K 172 /Pg 35 0 R /Pg 35 0 R endobj /K 120 /ProcSet [/PDF /Text] These materials typically consist of strong fibers embedded in a resin (in this case, graphite fibers embedded in epoxy). /Pg 35 0 R ] -Consists of 1 main rotor and a rotary rudder. /ColorSpace << /Subscript /Span /K 2 249 0 obj /Sh3 351 0 R /K 4 /K 24 /Lang (EN-GB) >> /P 17 0 R /TT1 311 0 R /Lang (EN-GB) /S /P 169 0 obj << /K 19 >> /TT0 313 0 R >> /Lang (EN-GB) >> /A 467 0 R endobj >> /Lang (EN-GB) >> A space frame is a simple albeit inefficient way of building a fuselage structure as the fabric skins add weight without contributing to the rigidity of the structure. /S /Tabelle_content /Resources << The relative windspeed is greater on an advancing blade than it is on a retreating blade. /CS0 [/ICCBased 287 0 R] << /P 543 0 R /S /Artifact /A 553 0 R /Sh3 321 0 R endobj /Subtitle#2CFig /H2 70 0 obj /Tabs /S /Lang (EN-GB) Determine the suitable material for each of the component. /K [8 272 0 R] /Lang (EN-GB) http://www.zotero.org/styles/harvard1 /K 2 /Lang (EN-GB) /K 43 /S /P << 214 0 R null 215 0 R 216 0 R 217 0 R 218 0 R 219 0 R null 220 0 R null /Pg 35 0 R endobj /A 616 0 R endobj 113 0 obj It can perform a lot of manoeuvres faster than other contemporary helicopters and reaches top speed without having to wait much. << /S /GoTo /Sh18 348 0 R /Pg 35 0 R /P 17 0 R /Pg 43 0 R Fuselage The main body of the helicopter is known as the fuselage. /TT3 314 0 R 10 0 obj /DisplayDocTitle true /ProcSet [/PDF /Text] >> /P 635 0 R /S /Tabelle_content /S /Tabelle_content /Mendeley#20Recent#20Style#20Id#204_1 (http://www.zotero.org/styles/chicago-author-date) /GS0 288 0 R << endobj >> << << endobj /Pg 33 0 R << >> /Fm3 298 0 R >> >> >> /K 22 /Lang (EN-GB) << /Lang (EN-GB) 6 0 obj endobj /MediaBox [0.0 0.0 595.32 841.92] >> /K 48 -rotary rudder counteracts torque developed by the rotor head. /S /Tabelle_content >> /K 99 /CS1 [/ICCBased 306 0 R] 138 0 obj These rotors are usually made of a composite structure. /Lang (EN-GB) >> >> 253 0 obj The whole body frame is made of an FE beam structure 4 with a cross-section of 0.22410 3 m 2, while the lift section (around the fuselage to support hub and fuselage) and the tail section are thicker, 0.910 3 and 1.492310 3 m 2 respectively, offering stronger support. 7 0 obj Rotor brake system /P 561 0 R The evolution of composites Wood and dope and fabric structures in the 1930s and '40s gave way to thin-skinned adhesively bonded aluminum structures in the 1950s and '60s. 167 0 obj 31 0 obj 1. << endobj /Pg 43 0 R /Im1 374 0 R /StructTreeRoot 6 0 R << /GS0 307 0 R >> 265 0 obj /XObject << /BaseFont /ZapfDingbats /Pg 35 0 R /Type /Metadata << /Contents 377 0 R >> Frames also provide a means to introduce point loads into the fuselage. /Fm3 298 0 R >> 184 0 obj /Fm4 299 0 R /S /Normal 206 0 obj /Fm4 299 0 R /K 136 87 0 obj /Type /StructTreeRoot /Rotate 0 << /GS1 308 0 R The fuselage is the name given to the main body of the aircraft and houses the pilots, crew, passengers, and cargo. /ProcSet [/PDF /Text] >> /S /Tabelle_content /Strikeout /Span /Next 12 0 R /P 601 0 R /Sh13 343 0 R /A 399 0 R /P 17 0 R /TT2 329 0 R /S /P /Pg 35 0 R /S /Tabelle_content endobj Acknowledgements) 49 0 obj The airframe, or fundamental structure, of a helicopter can be made of either metal or wood composite materials, or some combination of the two. /S /Normal /A 397 0 R /Lang (EN-GB) 172 0 obj While held in check from sliding back and forth, the teetering hinge does allow the blades to flap up and down. /ProcSet [/PDF /Text /ImageC] /A 518 0 R /ProcSet [/PDF /Text] /Mendeley#20Recent#20Style#20Id#200_1 (http://www.zotero.org/styles/american-medical-association) /Parent 16 0 R If you missed part one, then perhaps go back and read this before continuing as this provides an overview on structural loading and design. >> << /K 8 /S /Artifact << /P 621 0 R /CS1 [/ICCBased 306 0 R] /S /Normal /Fm4 299 0 R Main transmission gearbox accessory section >> /S /Tabelle_content 135 0 obj /Pg 35 0 R >> /P 648 0 R /P 17 0 R >> /Lang (EN-GB) /ExtGState << /A 401 0 R << << 1. /S /Normal >> << /TT4 314 0 R /Lang (EN-GB) This causes greater lift to be developed on the advancing blade, causing it to rise up or flap. /Fm4 299 0 R This website uses cookies to ensure you get the best experience on our website. << >> /S /Tabelle_content These metals offered more stability and greater protection from the elements. from China. /Lang (EN-GB) 243 0 obj /P 628 0 R endobj << /K 94 endobj A typical helicopter fuselage structure shown in Fig 1 consists of several key components: (a) Subfloor box, (b) Energy absorbing beam, (c) Box beam frame members, (d) Longitudinal beam, and (e) Outer fuselage skin. /P 418 0 R /Parent 16 0 R endobj /K 4 /A 414 0 R The fuselage structure must be sufficiently strong to ensure safe operation throughout the flight envelope. /S /Tabelle_content /Prev 21 0 R Figure 1 shows the major components of a typical helicopter. /Pg 35 0 R /Lang (EN-GB) 166 0 obj /Lang (EN-GB) Fabric-covered fuselage of the Heath Parasol, 1931 1931: Giant Flying Boat for Navy: the first of nine huge twin-engined Martin flying boats, the largest craft of their kind in th. /K 85 << /TT1 313 0 R /Lang (EN-US) /Lang (EN-GB) >> /Fm3 298 0 R >> /StructParents 12 /Pg 35 0 R /P 525 0 R See Figure 4.12. /K 5 /Lang (EN-GB) << >> /Pg 33 0 R /S /Subscript /Pg 35 0 R /Sh10 317 0 R /Lang (EN-GB) endobj /Font << /P 96 0 R 114 0 obj /Pg 30 0 R /GS2 309 0 R << /Lang (EN-GB) /Pg 41 0 R http://www.zotero.org/styles/chicago-author-date 4 0 obj /K 114 /A 483 0 R /Contents 379 0 R /Pg 25 0 R /Lang (EN-GB) /Pg 33 0 R
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