- document
-
de Jonge, J.B. (author)The mission analysis concept for defining design loads is assessed and compared with the current design procedure based on Design Envelope Concepts. Although the Mission Analysis Concept permits design loads of equal probability of exceedance to be obtained for all components, this does not imply that a fixed failure probability for the aircraft...report 1972
- document
- de Jonge, J.B. (author), Spiekhout, D.J. (author) report 1977
- document
-
de Jonge, J.B. (author)Modern aircraft structures are designed to be damage tolerant and to have an adequate durability. The Damage Tolerance provides structural safety in case of inadvertent cracking, the Durability determines the time that the structure can be kept in service in an economically acceptable way. Many aircraft are planned today to be kept in service...report 1994
- document
-
de Jonge, J.B. (author)The present review gives a brief summary of the work performed in the Netherlands in the field of aeronautical fatigue, during the period from March 1993 until March 1995. The contributions come from three different sources, namely: The National Aerospace Laboratory (NLR) • The Department of Aerospace Engineering, Delft University of Technology ...report 1995
- document
-
de Jonge, J.B. (author), van Lummel, C.W.J. (author)An analysis has been made of acceleration recordings made during 9500 flights of Lockheed (R)F-104G fighter aircraft. The load experience per flight is a stochastic whose distribution turns out to be fairly well approximated by a Weibull distribution. The observed variation in load experience between aircraft flying the same duty is studied in...report 1985
- document
- de Jonge, J.B. (author), Hol, P.A. (author), van Gelder, P.A. (author) report 1995
- document
-
de Jonge, J.B. (author)A statistical analysis was made of flight load data pertaining to about 10000 RNLAF F-104G operational flights. The distributions of load experience per flight could be fairly well approximated by Weibull-distribution functions. Specific attention is paid to the differences in load experience per aircraft. The paper concludes with a discussion...report 1989
- document
-
de Jonge, J.B. (author)The report starts with a general review of the loading of transport aircraft fuselages and the consequent fuselage skin stresses Taking the F-28 fuselage as an example, the potential weight savings that can be obtained by using ARALL as skin material are assessed. The report ends with conclusions and recommendationsreport 1982
- document
-
de Jonge, J.B. (author)Due to the development of servo hydraulic fatigue testing machines, fatigue tests under realistic loading conditions have become possible. In these tests, standardized load sequences can be applied. The paper describes the main properties of such sequences, including TWIST and FALSTAFF. Various examples of application of these sequences are...report 1980
- document
-
de Jonge, J.B. (author), Nederveen, A. (author), ten Have, A.A. (author)In international collaboration, two standardized fatigue test load sequences for helicopter components, HELIX and FELIX, have recently been established. The present report describes tests on notched Titanium Alloy specimens to evaluate the properties of the FELIX standard. Tests included Constauit Amplitude, block programme and FELIX-flight...report 1982
- document
-
Lowak, H. (author), de Jonge, J.B. (author), Franz, J. (author), Schutz, D. (author)The Transport Wing Standard programme (TWIST) published in March 1973 is considered to be representative for the load history of the wing root of transport aircraft. A description of the shortened version of this load programme called MINITWIST is given in the present report. In all cases where testing time is a prohibitive factor to use TWIST,...report 1979
- document
- de Jonge, Niek (author) report 2005
- document
-
de Jonge, J.B. (author), Plantema, F.J. (author)Buckling loads euid interaction curves are derived for plates having all four edges clamped, or two opposite edges clamped and the other two simply supported. The analysis is hased on Bijlaard's method of split rigidities in combination with the energy method. A comparison is made with results derived elsewhere without the use of Bijlaard's...report 1966
- document
-
de Jonge, J.B. (author)A brief review is given of work performed in the Netherlands in the field of aeronautical fatigue. Where possible, applicable references have been presented.report 1987
- document
-
Vink, W.J. (author), de Jonge, J.B. (author)The present report is part of a "Manual" on aircraft loads, that is being prepared by NLR. It contains a computer program, to be used in combination with "MATLAB4 for Windows" (Student Edition) software, to study aircraft loading due to turbulence. It includes a simple aircraft response model with two rigid and three flexible symmetric degrees...report 1997
- document
-
ten Have, A.A. (author), Nederveen, A. (author), de Jonge, J.B. (author), van Leeuwen, H.P. (author)This memorandum presents results of crack propagation tests on notched Alclad 2024-T351 sheet specimens. Two thicknesses were investigated (2 mm and 8 mm), as well as various spectrum modifications and the effect of clustering of severe flights within the test load sequence.report 1982
- document
-
Ottens, H.H. (author), de Jonge, J.B. (author)The present paper gives a brief review of current and planned research at NLR related to the problems associated with Ageing Aircraft. This research is primarily directed towards the prevention of Ageing Aircraft problems in future aircraft and is concentrated on two areas: - prevention of MSD in lap joints; - improved knowledge on operational...report 1992
- document
-
de Jonge, J.B. (author)Fail-safety or damage tolerance i s generally considered as a highly desirable and in some countries as anobligatory property of transport aircraft structures. Recently the USAP issued a detailed requirement on damage tolerance. In the present report various aspects of damage tolerance are discussed with specific reference to the USAP...report 1976
- document
-
de Jonge, J.B. (author), Hol, P.A. (author)Fatigue meter data obtained during operational flights of Fokker F27 and Fokker F28 aircraft were re-processed and analyzed to study the variation in load experience between different aircraft of the same type. The Data covered about 470000 flights, made by 101 aircraft of 51 different operators. A simple algorithm was developed to quantify the...report 1996
- document
-
Binnenkade, P. (author), Edelschaap, T. (author), Hoogeboom, P. (author), de Jonge, H.W.G. (author), Pouwels, H. (author), Veugen, L.M.M. (author), Kroon, R.J.G.A. (author), Moek, G. (author), Schwarz, P.G. (author)The Netherlands remote sensing community has expressed a need for systemcorrected SLAR imagery. This means that corrections for aircraft position and attitude as well as sensor characteristics need to be applied to raw data acquired with the Netherlands digital SLAR. The PARES system was designed to fulfil this requirement. The distortions...report 1982