Search results

1 – 10 of 22
Per page
102050
Citations:
Loading...
Access Restricted. View access options
Article
Publication date: 1 July 1956

Ing. E. Gassner

IN aircraft construction, until about fifteen years ago, the customary static method of stressing generally also provided for an adequate fatigue strength. This does not now apply…

323

Abstract

IN aircraft construction, until about fifteen years ago, the customary static method of stressing generally also provided for an adequate fatigue strength. This does not now apply for various reasons (e.g. increased flight speeds, use of high‐strength materials with changed fatigue properties). It is, therefore, necessary to establish design rules which take account of more recent knowledge; which variables are to be specially considered, and what their importance is in a particular case, becomes clear from fatigue tests which, to a considerable extent, cater for the peculiar loading conditions of flight (service endurance tests or programme‐loading tests). The principle of these tests was established in the DVL (1938 to 1941) and it is now in general use in automobile design for determining the relation between fatigue strength and endurance (life function) as in many cases of service failures a very good agreement with these tests can be observed.

Details

Aircraft Engineering and Aerospace Technology, vol. 28 no. 7
Type: Research Article
ISSN: 0002-2667

Access Restricted. View access options
Article
Publication date: 1 July 1956

IN this issue we publish a translation (by MR TIBOR HAAS, whom readers will remember as the author of the paper ‘Fatigue Tests and Aircraft Life Evaluation’ in our October 1955…

39

Abstract

IN this issue we publish a translation (by MR TIBOR HAAS, whom readers will remember as the author of the paper ‘Fatigue Tests and Aircraft Life Evaluation’ in our October 1955 issue) of a paper by a distinguished German specialist in the study of fatigue. DR ING. E. GASSNER. We feel that this is a contribution of considerable importance, backed as it is by nearly twenty years of experimental and analytical experience of fatigue problems. Sonic of the points have been voiced before in this country, but this paper brings together the reasons which have made fatigue such a serious factor of ignorance in aircraft design since the war.

Details

Aircraft Engineering and Aerospace Technology, vol. 28 no. 7
Type: Research Article
ISSN: 0002-2667

Access Restricted. View access options
Article
Publication date: 1 October 1955

Tibor Haas

THE method used at present in fatigue testing aircraft joints and components by applying cycles of constant stress amplitude of a magnitude considered to be the most damaging is…

80

Abstract

THE method used at present in fatigue testing aircraft joints and components by applying cycles of constant stress amplitude of a magnitude considered to be the most damaging is based on the assumption that Miner's cumulative damage rule, Σ(n/N)&equals l, holds good. This rule is known to be true only under certain conditions which may not apply to those under which fatigue damage is accumulated in aircraft.

Details

Aircraft Engineering and Aerospace Technology, vol. 27 no. 10
Type: Research Article
ISSN: 0002-2667

Access Restricted. View access options
Article
Publication date: 30 November 2005

Adel Elsayed and Roger Hartley

Learning can be viewed as a communication process that puts the learner in contact with concepts created by others. A result of communication is that an act of interpretation…

480

Abstract

Learning can be viewed as a communication process that puts the learner in contact with concepts created by others. A result of communication is that an act of interpretation starts, which invokes a process of conceptualization. According to Mayes, successful conceptualization will need the support of learning activities. Hence, machine mediated communication is important for creating online e‐Learning opportunities; not only for relaying communication content, but also for supporting the cognitive processes associated with the necessary learning activities required for conceptualization. In Laurillard’s conversational theory, a communication loop should be established between learners and teachers. The articulation element in this loop is necessary for engaging the learner in a collaborative activity, which is essential for developing further the conceptualization process. This paper discusses the acts of communication, conceptualization and articulation within a machine mediated multimodal communication, and it proposes a framework within which a supporting set of cognitive activities can be developed.

Details

Interactive Technology and Smart Education, vol. 2 no. 4
Type: Research Article
ISSN: 1741-5659

Keywords

Access Restricted. View access options
Article
Publication date: 1 April 1942

APPLICATIONS for the loan of copies of translations mentioned below should be addressed to the Secretary (R.T.P.3), Ministry of Aircraft Production, and copies mill be loaned as…

19

Abstract

APPLICATIONS for the loan of copies of translations mentioned below should be addressed to the Secretary (R.T.P.3), Ministry of Aircraft Production, and copies mill be loaned as far as availability of stocks permits. Suggestions concerning nzw translations will be considered in relation to general interest and facilities available. Lists of selected translations have appeared in AIRCRAFT ENGINEERING since September, 1938.

Details

Aircraft Engineering and Aerospace Technology, vol. 14 no. 4
Type: Research Article
ISSN: 0002-2667

Access Restricted. View access options
Article
Publication date: 1 May 1942

Alexander Klemin

IN our report of the tenth annual meeting of the Institute of the Aeronautical Sciences we shall not follow precisely the order in which the sessions occurred nor at all times…

34

Abstract

IN our report of the tenth annual meeting of the Institute of the Aeronautical Sciences we shall not follow precisely the order in which the sessions occurred nor at all times classify the papers in exactly the manner of the meeting. Unfortunately, certain of the papers presented will not be found in our review owing to lack of preprints, but this in no way reflects on the value or timeliness of the papers omitted in the review.

Details

Aircraft Engineering and Aerospace Technology, vol. 14 no. 5
Type: Research Article
ISSN: 0002-2667

Access Restricted. View access options
Article
Publication date: 1 March 1990

Thomas J. Michalak

Historically, libraries have always included special features in their catalogs to meet local needs. This trend has changed over the years as cataloging standards have been…

70

Abstract

Historically, libraries have always included special features in their catalogs to meet local needs. This trend has changed over the years as cataloging standards have been developed and accepted. The sheer volume of materials and the rising costs of operations have also curtailed the customizing of local records. However, the desirability of enhancing local records has been readdressed at Carnegie Mellon University. It has undertaken an experimental project to enhance catalog records for new books that meet defined criteria: for example, the books contain “citable” references in the table of contents; chapter titles, while not separately citable, do contain additional useful information; and exhibition catalogs cover 25 or fewer artists. The criteria for and process of enhancing records are discussed, and sample screen displays are illustrated.

Details

Library Hi Tech, vol. 8 no. 3
Type: Research Article
ISSN: 0737-8831

Access Restricted. View access options
Article
Publication date: 1 December 1970

D.S. Gullick and B.D. Birch

IN 1968, Dowry Rotol Ltd., Staverton, Gloucester, were awarded a contract by McDonnell Douglas Corporation to implement a surface stress survey on the DC‐10 Nose Undercarriage…

93

Abstract

IN 1968, Dowry Rotol Ltd., Staverton, Gloucester, were awarded a contract by McDonnell Douglas Corporation to implement a surface stress survey on the DC‐10 Nose Undercarriage Assembly.

Details

Aircraft Engineering and Aerospace Technology, vol. 42 no. 12
Type: Research Article
ISSN: 0002-2667

Access Restricted. View access options
Article
Publication date: 1 December 1943

In a vehicle power plant comprising a pair of coaxial controllable‐pitch propellers and means for rotating said propellers independently in opposite directions, means for holding…

13

Abstract

In a vehicle power plant comprising a pair of coaxial controllable‐pitch propellers and means for rotating said propellers independently in opposite directions, means for holding one of said propellers against rotation, and means for turning the blades of the propeller so held to a pitch position at which aerodynamic forces acting on said propeller during flight tend to turn said propeller in the same direction as the direction of rotation of the other propeller.

Details

Aircraft Engineering and Aerospace Technology, vol. 15 no. 12
Type: Research Article
ISSN: 0002-2667

Access Restricted. View access options
Article
Publication date: 1 December 1956

Tibor Haas

THIS Conference, the largest ever arranged on the subject of fatigue of metals, was sponsored by The Institution of Mechanical Engineers in co‐operation with The American Society…

106

Abstract

THIS Conference, the largest ever arranged on the subject of fatigue of metals, was sponsored by The Institution of Mechanical Engineers in co‐operation with The American Society of Mechanical Engineers. A follow‐up Conference of the A.S.M.E. was to be held in New York from November 28–30.

Details

Aircraft Engineering and Aerospace Technology, vol. 28 no. 12
Type: Research Article
ISSN: 0002-2667

1 – 10 of 22
Per page
102050