Searched for:
(1 - 20 of 20)
document
Tinga, T. (author), de Wolf, W.B. (author), Visser, W.P.J. (author), Woldendorp, S. (author)
A method to predict gas turbine component life based on engine performance analysis is demonstrated on a hot section gas turbine component. The mechanical and thermal loading of the first stage high pressure turbine rotor blade of the FlOO-PW-220 engine, one of the most severely loaded components in the engine, is analyzed and a life assessment...
report 2001
document
Hoekstra, J.M. (author), Ruigrok, R. (author), van Gent, R.N.W.H. (author), Visser, J. (author), Gijsbers, B. (author)
NLR has investigated the feasibility of Free Flight concepts with airbome separation during several years of research in collaboration with NASA, the FAA and the RLD (Dutch Civil Aviation Authorities). Issues that have been addressed are: • conflict detection & resolution methods • complex conflict geometries • pilot workload • pilot...
report 2000
document
Visser, F.B. (author), Wolff, M. (author)
report 1997
document
Brouwer, M.P.A.M. (author), Pronk, Z. (author), Visser, F.B. (author), de Haas, J. (author)
At the early beginning (1989) of implementation of the European User Support Organisation (USO) concept, development and implementation of a Dutch Utilisation Centre (DUC) started at NLR premises. After development of several pilot DUC facilities, DUC participated in a Columbus simulation mission and in the 2nd International Micro-gravity...
report 1996
document
Visser, F.B. (author), Pronk, Z. (author)
Als onderdeel van de ontwikkeling en evaliratie van 'crew-support tools' en mens-machine interfaces, zijn de afgelopen jaren bij ESTEC in Noordwijk enkele missie-simulaties georganiseerd. Deze simulaties vonden plaats in het 'Crew Workstation Testbed'. Een van de doelstellingen van zo'n simulatie, die gehouden zou worden in mei 1994, was het...
report 1995
document
Visser, F.B. (author)
Het doel van deze notitie is het samenvatten van de ideeën die binnen de Nederlandse industrie en het NLR bestaan met betrekking tot gebruik van ruimte-infrastructuren en de daaraan gerelateerde technologie. Daarnaast wordt een beeld geschetst van de toekomstverwachtingen die bestaan.
report 1995
document
Pronk, Z. (author), Visser, F.B. (author)
As part of the evaluation of man-machine interfaces for Columbus utilisation, manned mission simulations have been performed for some years in the Crew Workstation Test-Bed at ESTEC, Noordwijk. A mission simulation was scheduled for May 1994, to include new concepts for crew and user support, and to aim at increased realism for payload...
report 1994
document
Visser, F.B. (author), Brouwer, M.P.A.M. (author), Kuijpers, E.A. (author)
As a result of the ESA-USO study, the Netherlands initiated the development of a Dutch National User Support Organisation in 1989. In the past years the development went forward, involving Dutch industries, Dutch users, Dutch national agencies and the National Aerospace Laboratory NLR, The Netherlands. The latter acting as manager and...
report 1993
document
Pronk, C.N.A. (author), Visser, F.B. (author), Sijmonsma, R.M.M. (author)
Within the studies on Advanced Man-Machine Interfaces and Crew Support (AMMI&CS), being part of the Crew Workstation Testbed activities at ESTEC, a Dutch consortium is preparing the implementation of the User Support Organisation (USO) concept in a ground-based mission simulation. The objective of the Implementation study is to demonstrate and...
report 1993
document
Kuijpers, E.A. (author), Visser, F.B. (author), Padeken, D. (author), Weber, T. (author), Karemaker, J.M. (author), Stok, W.J. (author)
During the D-2 mission an opportunity exists to execute a pilot experiment concerning distributed scientific user support for Anthrorack. A Dutch scientist will act as co-Investigator at GSOC and will get remote support from another scientist at NLR Noordoostpolder. Also, various operations are required during preparation and post-processing...
report 1992
document
Visser, F.B. (author)
It is expected that the number of micro-gravity research opportunities will strongly increase in the coming years. To improve the accessibility of these present and future opportunities for the users, ESA initiated activities that led to the definition of a User Support Organization (USO). This concept is described. The concept recognizes a...
report 1992
document
Visser, F.B. (author)
In the future Columbus in-space facility, the communication between the crew and the various system elements will mainly take place via the so called Crew Workstation (CWS). The CWS hardware will comprise a versatile set of I/O devices which enable the clear and unequivocal presentation of information to, and the easy issue of commands by crew...
report 1988
document
Visser, F.B. (author)
This report contains the results of the study concerning the applicability of a system required to establish and maintain an optical communication link between a geostationary European Data Relay Satellite and a user in a low earth orbit (HERMES). The optical terminal on both spacecraft consists of elements that will enable acquisition and...
report 1988
document
Visser, J. (author)
The PROCRU (Procedure Oriented Crew) model has been developed for the analysis and modeling of flight crew procedures during an ILS approach. The model's specific capability concerns the generation of "timelines" of the necessary actions to be carried out by each crew member during the approach. Besides, also the corresponding timelines for...
report 1987
document
Joosten, L.J.M. (author), Smilde, H. (author), Sijmonsma, R.M.M. (author), Visser, F.B. (author), Reesink, W.E. (author), van Tijn, R. (author)
This study -under contract with ESA/ESTEC- concerns the feasibility of upgrading commercially optical mass storage equipment. It addresses the environmental conditions expected in Columbus, and the verification procedures (Part II). From the optical storage devices Philips is involved in, the CD-ROM-CM200 serie is selected as a promising space...
report 1987
document
Joosten, L.J.M. (author), Sijmonsma, R.M.M. (author), Visser, F.B. (author), Reesink, W.E. (author)
Optical mass storage of digital data is attractive for use in space missions. This is the result of an ESA/ESTEC study performed by the Dutch National Aerospace Laboratory and Van der Heem Electronics (Signaal/Philips). Upgrading of commercial devices seems feasible, while ground support can be done by common equipment and software. In this way...
report 1987
document
da Riva, I. (author), Martinez, I. (author), Martinez-Val, R. (author), Sanz, A. (author), Huijsen, R.H. (author), Visser, F.B. (author), Vreeburg, J.P.B. (author)
Based on earlier designs for fluid science facilities, the elements of a FSL are derived. They have been grouped in classes, viz. experiment volumes and support elements. Each is described qualitatively, i.e. their features and required performances are discussed. The experiments are to be described with reference to a set of (5) canonical...
report 1987
document
da Riva, I. (author), Martinez, I. (author), Martinez-Val, R. (author), Sanz, A. (author), Huijser, R.H. (author), Visser, F.B. (author), Vreeburg, J.P.B. (author)
The report presents a design study, within a specified envelope of resources, of laboratory for scientific research on fluid material in a space station, A survey of the scientific background of mlcrogravity experiments identifies candidate investigations. A structured description of available facilities, or earlier design studies, provides a...
report 1987
document
Martinez, I. (author), da Riva, I. (author), Martinez-Val, R. (author), Vreeburg, J.P.B. (author), Sanz, A. (author), Huijser, R.H. (author), Visser, F.B. (author)
The present part 2 of the Final Report presents an inventory of techniques that are likely to find application in the Fluid Science Laboratory. Part 1 of the Report contains a survey of the scientific disciplines that are indicated to provide investigations for the FSL. In the following Part 3, a preliminary synthesis of the content matter of...
report 1987
document
Simons, H.J. (author), Joosten, L.J.M. (author), Visser, F.B. (author), Dijk, J. (author), Verlijsdonk, A.P. (author)
The objectives of this study are to define the technical facilities which are required for electronic document delivery over a satellite link. In this report, the user requirements and system requirements are analysed for the complete chain of Electronic Document Delivery (EDD) facilities, consisting of archiving, transmission and reproduction...
report 1986
Searched for:
(1 - 20 of 20)