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Van wal, S. (author)The deployment of passive, spherical lander pods provides a low-cost, low-risk technique for measuring the (sub-)surface of asteroids and comets. In this masters thesis, we numerically investigate the feasibility of such pods through the development of simulation software. This software models the complex gravity field of asteroids, as well as...master thesis 2015
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Maessen, D.C. (author)The thesis deals with the relative navigation between two small formation flying spacecraft. The inter-satellite distance is measured using locally generated radiofrequency ranging signals. Design considerations for the spacecraft and the relative navigation system are discussed as well as the estimation of the relative state. The influence of...doctoral thesis 2014
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Kuiper, J.M. (author)Mass-spring and liquid dampers enable structural vibration control to attenuate single, coupled lateral and torsional vibrations in diverse structures. Out of these, the passively tuned liquid damper (TLD) class is wanted due to its broad applicability, extreme reliability, robustness, long life time and ease of manufacturability. In this PhD...doctoral thesis 2012
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Yao, W. (author), Chen, X. (author), Zhao, Y. (author), Van Tooren, M.J.L. (author)To comprehensively assess fractionated spacecraft, an assessment tool is developed based on lifecycle simulation under uncertainty driven by modular evolutionary stochastic models. First, fractionated spacecraft nomenclature and architecture are clarified, and assessment criteria are analyzed. The mean and standard deviation of risk adjusted...journal article 2012
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Acquatella, B.P.J. (author)In order to meet requirements in terms of robustness, stability, and performance for future generations of advanced attitude control systems, a sensor-based approach using Incremental Backstepping control is developed and proposed in this thesis. Assuming full state availability and fast control action, the resulting time-scale separation...master thesis 2011
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Fragoso Trigo, G. (author)In the context of the initiative Formation for Atmospheric Science and Technology demonstration (FAST), this dissertation describes the design and comparison of several nonlinear attitude controllers for TU Delft’s micro-satellite. The control requirements include robustness against model uncertainties and disturbances. To this end, Backstepping...master thesis 2011
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Beekema, M. (author)Wireless sensor networks are becoming ubiquitous in terrestrial applications. In this thesis we present a platform for wireless on-board spacecraft sensor networks with focus on the sensors that bring high 'added value' to existing space systems while becoming wireless. A novel multi-gateway architecture that uses dual hardware redundancy is...master thesis 2011
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D'Amico, S. (author)Formation flying is commonly identified as the collective usage of two or more cooperative spacecraft to exercise the function of a single monolithic virtual instrument. The distribution of tasks and payloads among fleets of coordinated smaller satellites offers the possibility to overcome the classical limitations of traditional single...doctoral thesis 2010
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Spaans, C.J. (author)Optimization of spacecraft trajectories is an interesting area of research, where a lot of development takes place: in the past years, an optimizer called OPTIDUS was implemented at the chair of Astrodynamics at Delft Univierstiy. This tool is able to do optimization of spacecraft trajectories (and other problems) using an evolutionary algorithm...master thesis 2009
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Te Hennepe, F. (author)Delfi-C3 is a nanosatellite developed by MSc students of the Faculty of Aerospace Engineering and Electrical Engineering, Mathematics and Computer Science at the Delft University of Technology. It will serve as an in-orbit test bed for three innovative technologies. Delfi-C3 is scheduled for launch in August 2007 by an Indian PSLV launcher. This...master thesis 2007
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Veldman, A.E.P. (author)Non-linear free-surface phenomena, such as extreme waves and violent sloshing, and their impact on the dynamics response of the containing vessels have long been subjects that could only be studied with experimental methods. Nowadays, computational CFD tools can make a significant contribution to these flow problems. The paper starts with a...conference paper 2006
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Kroes, R. (author)Spacecraft formation flying is considered as a key technology for advanced space missions. Compared to large individual spacecraft, the distribution of sensor systems amongst multiple platforms offers improved flexibility, shorter times to mission, and the prospect of being more cost effective. Besides these advantages, satellite formations in...doctoral thesis 2006
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Mooij, E. (author)This report describes the design of an attitude controller for an unpowered, winged re-entry vehicle. The decoupling of the symmetric and asymmetric motion makes it possible to design two separate controllers, one for the pitch mot ion and one for the lateral motion. The design of the controller, a Linear Quadratic Regulator, is based on...book 1998
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Vreeburg, J.P.B. (author)A model with two interacting bodies, for a spacecraft with liquid, has been developed. The spacecraft without liquid is the "tank" and is characterized by its inertial properties and the location and size of a spherical cavity. In the cavity is located the "slug", a sphere of uniform density with a variable radius. At the point of contact...report 1996
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Chu, Q.P. (author), Zwartbol, T. (author), van Woerkom, P.T.L.M. (author)The objective of the present paper is to give an overview of spacecraft attitude determination with GPS. GPS receivers with single or multiple antennas nowadays are low-cost sensors that constitute a valuable complement to existing sensor suites. GPS has been widely used for positioning and vehicle navigation. However, using GPS as an attitude...report 1995
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Vreeburg, J.P.B. (author)The representation of the acceleration field on a rigid body contains as parameters its angular rate and acceleration vectors plus the acceleration vector at a single point of the body. A linear accelerometer measures a local component of the field. From the response of different accelerometers, three quadratic forms in the angular rate of the...report 1995
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Guelman, M. (author)The present report contains a study on the simulation of interactive fluid spacecraft dynamics. The equations of motion of the two dimensional full tank case as well as the corresponding finite different discretized equations are presented. The numerical solution of this system is studied. Results are presented for a number of cases. Based on...report 1993
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ten Dam, A.A. (author), van den Berg, J.I. (author)The mathematical modelling and numerical simulation of a condenser is discussed. This mathematical model is part of the NLR approach to model and scale two-phase heat transport systems (for space). During a previous study the condensation length required for various gravity conditions, and working fluids has been investigated by means of...report 1993
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ten Dam, A.A. (author), van den Berg, J.I. (author)In this report the numerical simulation of a mathematical model of a condenser is discussed. This mathematical model of the NLR approach to model and scale two-phase heat transport systems. In this report the model of the condenser is reformulated to a model that is suitable for a numerical discussion. The results is a model that is represented...report 1992
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van Woerkom, P.T.L.M. (author)Numerical simulation of the dynamics of multi-body systems constitutes a central part in the design and analysis of modern space-based systems. The report focuses on the development of a recursive formulation of the dynamics of flexible spacecraft-robotmanipulator systems, suitable for efficient numerical simulation. The rather well-established...report 1990