SAE R-225-1998 Fly-by-Wire A Historical and Design Perspective (To Purchase Call 1-800-854-7179 USA Canada or 303-397-7956 Worldwide).pdf
《SAE R-225-1998 Fly-by-Wire A Historical and Design Perspective (To Purchase Call 1-800-854-7179 USA Canada or 303-397-7956 Worldwide).pdf》由会员分享,可在线阅读,更多相关《SAE R-225-1998 Fly-by-Wire A Historical and Design Perspective (To Purchase Call 1-800-854-7179 USA Canada or 303-397-7956 Worldwide).pdf(134页珍藏版)》请在麦多课文档分享上搜索。
1、r / * I if * r Phase IIE. Precision Aircraft Control Technology and Reliability/Maintainability of SFCS Fly-By-Wire; and Technology Transitions and Application. Gavin Jenney was Director of Air Force In-House Facilities, including the B-47 Program. Gavin also designed the fly-by-wire system used on
2、this program and was one of the flight test team. He is author of many Air Force technical documents on fly-by-wire and is currently President of Dynamic Controls, Inc. He reviewed and made numerous suggestions to improve this book. F/L Paul Sutherland, a Canadian Air Force exchange officer, came on
3、 the scene at a very opportune time. He took over Phase II of the B-47 In-House Program and Phase II of the Sperry Phoenix Effort. He orga- nized and chaired the Government-Industry Symposium on Fly-By-Wire given at Wright-Patterson Air Force Base. Major General Robert R. Rankine, HQ AFSC, while ser
4、ving as a Major during his early military career, was a Section Chief in the Control Elements Branch of the Flight Dynamics Laboratory. He offered early encouragement of this publication, as illustrated by this excerpt from a June 11, 1992, letter to HQ AFMC: Technology for fly-by-wire was developed
5、 by Wright Laboratory in the 1960s and first saw application in a production airplane in the F-16. Mr. Harry Hillaker, formerly of General Dynamics and now a viiAcknowledgments member of the Air Force Scientific Advisory Board, has told General Yates that fly-by-wire in the F-16 would not have been
6、possible without the Flight Dynamics Lab (now part of Wright Lab). . . . I believe a monograph on this subject would be of considerable value to the AFMC technical community, since it represents a USAF-led technology development that has had a significant impact on world aviation. . . . I believe su
7、ch a monograph would be popular with a multitude of engineers throughout the aero- space industry who have been working fly-by-wire issues for decades. Ed Snyder and other personnel of the Air Force Materials Laboratory indoctrinated the McDonnell Douglas engineers on the survivability aspects of hy
8、draulic fluid Mil-H-83282 over Mil-F-5606 (the then standard Air Force fluid), mainly the performance at higher temperature and the higher bulk modulus. The new fluid was used in A/C 12200 throughout the Fly-By-Wire Program and is now the standard hydraulic fluid in Air Force aircraft. There are man
9、y other individuals who deserve to be mentioned as they played a part in establishing the technology we use. However, I feel we must set a limit, and sincerely hope theyll understand the situation. I offer special thanks to my wife, Betty. With WordPerfect, helpful suggestions, encouragement, and ma
10、rital sup- port, she made this book possible. Vernon R. Schmitt Former AFFDL Project Engineer, Task 822503 viiiChapter 1 Introduction Fly-by-wire in aircraft flight control design is more than adding a simple wireit is a sophisticated system that changes the way aircraft are designed and the way the
11、y fly. Previous works on fly-by-wire have omitted or inadver- tently bypassed many of the details and explanations of the systems design, choosing instead to highlight only its application. Our purpose then is to fill this void by describing the “how“ and the “why.“ This book was prepared and writte
12、n by people who directed or staffed the fly-by-wire research and development programs because, as time passes, without a formal account of the key events and activities of the initial R work referred to as “in-house“ was accomplished at Wright-Patterson Air Force Base (WPAFB) in Dayton, Ohio, by con
13、tractor and Air Force military and civilian personnel. The Air Force spent millions and millions of dollars to promote and advance fly-by-wire technology to a level where it could be used as a practical design technique on new aircraft. Furthermore, had these programs not been undertaken and had the
14、y not been successful, fly-by-wire would not have been used on the design of flight control systems of military aircraft for at least for another 30 yearsand perhaps not even then. Unlike some design techniques that can be proven by mathematical models, computers, simulators, and perhaps lab- orator
15、y models, fly-by-wire required the design, construction, tests, and flight tests of flightworthy hardware. With many R it was computer designed, installed, and flight tested with good results. On the F-16 the neutral stability point was moved and with movement of the leading edge slats (computed), w
16、e have relaxed static stability. Experimentally on the F-111 we created the MAW (mission adaptive wing), which permitted changing the wing camber in flight. 2. The all-important action for changing concepts into reality is mechanization. Mechanization was accomplished on the B-47 program. In fact, t
17、he Survivable Flight Control System mechanization on the 680J Program made fly-by-wire a reality. 3. The B-2 and F-117 both employ this part of fly-by-wire. Thus, when we start to blend signals that are computerized (or computed) we can blend the various systems: avionics, flight control, and so on,
18、 ad infinitum. In the future, we can adapt such techniques to automatic flight for take-off, cruising, and landing. 2Chapter 2 Background of Fly-by-Wire Definitions What is meant by fly-by-wire? A simple, abbreviated description might be: fly-by-wire is a flight control design wherein a mechanical l
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
下载文档到电脑,查找使用更方便
10000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- SAER2251998FLYBYWIREAHISTORICALANDDESIGNPERSPECTIVETOPURCHASECALL18008547179USACANADAOR3033977956WORLDWIDEPDF
链接地址:http://www.mydoc123.com/p-1028267.html