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Accelerating space Commerce, Exploration, and New Discovery Conference, ASCEND 2020

作者： Nepal, Ayush Mani Prat, Arnau Höflinger, Kilian Johann Gerndt, Andreas Lüdtke, Daniel Software for Space Systems and Interactive Visualization DLR German Aerospace Center Lilienthalplatz 7 Brunswick38108 Germany Software for Space Systems and Interactive Visualization DLR German Aerospace Center Münchner Str. 20 Wessling82234 Germany Center for Industrial Mathematics University of Bremen Bibliothekstraße 5 Bremen28359 Germany Onboard Software Systems Software for Space Systems and Interactive Visualization DLR German Aerospace Center Lilienthalplatz 7 Brunswick38108 Germany

ISBN: (纸本)9781624106088

space systems are complex and consist of multiple subsystems. Research and development teams of such complex systems are usually distributed among various institutions and space agencies. This affects the quality of the On-board software (OBSW) since testing it without having all required subsystems at the software development site can be troublesome. In this paper, we present a data-driven method which can be used to synthesize parts of a system or even an entire system as a black-box model. We exploit the data collected from the real hardware to derive a model using a Machine Learning (ML) algorithm. The proposed model can easily be distributed among development teams and is dedicated to emulate the system for testing the OBSW. © 2020 The MITRE Corporation. All Rights Reserved.

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Well-being in Isolation: Exploring Artistic Immersive Virtual Environments in a Simulated Lunar Habitat to Alleviate Asthenia Symptoms

Well-being in Isolation: Exploring Artistic Immersive Virtua...

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International Symposium on Mixed and Augmented Reality (ISMAR)

作者： Grzegorz Pochwatko Wieslaw Kopec Justyna Swidrak Anna Jaskulska Kinga H. Skorupska Barbara Karpowicz Rafał Masłyk Maciej Grzeszczuk Steven Barnes Paulina Borkiewicz Paweł Kobyliński Michał Pabiś-Orzeszyna Robert Balas Jagoda Lazarek Florian Dufresne Leonie Bensch Tommy Nilsson Polish Academy of Sciences Institute of Psychology Polish-Japanese Academy of Information Technology Fundació de Recerca Clínic Barcelona - IDIBAPS Institute of Psychology - PAS Kobo Association Emotion Cognition Lab SWPS University Visual Narratives Laboratory Lodz Film School National Information Processing Institute Institute of Contemporary Culture University of Lodz Arts et Métiers Institute of Technology Software for Space Systems and Interactive Visualization German Aerospace Center European Space Agency (ESA)

Revived interest in lunar and planetary exploration is heralding a new era for human spaceflight, characterized by frequent strain on astronaut’s mental well-being, which stems from increased exposure to isolated, confined, and extreme (ICE) conditions. Whilst Immersive Virtual Reality (IVR) has been employed to facilitate self-help interventions to mitigate challenges caused by isolated environments in several domains, its applicability in support of future space expeditions remains largely unexplored. To address this limitation, we administered the use of distinct IVR environments to crew members $(n=5)$ partaking in a simulated lunar habitat study. Utilizing a Bayesian approach to scrutinize small group data, we discovered a significant relationship between IVR usage and a reduction in perceived stress-related symptoms, particularly those associated with asthenia (syndrome often linked to chronic fatigue and weakness; a condition characterized by feelings of energy depletion or exhaustion that can be amplified in ICE conditions). The reductions were most prominent with the use of interactive virtual environments. The ’Aesthetic Realities’ - virtual environments conceived as art exhibits - received exceptional praise from our participants. These environments mark a fascinating convergence of art and science, holding promise to mitigate effects related to isolation in spaceflight training and beyond

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Well-being in Isolation: Exploring Artistic Immersive Virtual Environments in a Simulated Lunar Habitat to Alleviate Asthenia Symptoms

arXiv

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arXiv 2023年

作者： Pochwatko, Grzegorz Kopec, Wieslaw Swidrak, Justyna Jaskulska, Anna Skorupska, Kinga H. Karpowicz, Barbara Maslyk, Rafal Grzeszczuk, Maciej Barnes, Steven Borkiewicz, Paulina Kobylinski, Pawel Pabiś-Orzeszyna, Michal Balas, Robert Lazarek, Jagoda Dufresne, Florian Bensch, Leonie Nilsson, Tommy Institute of Psychology Polish Academy of Sciences Poland Polish-Japanese Academy of Information Technology Poland Institute of Psychology - PAS Fundació de Recerca Clínic Barcelona Spain IDIBAPS Kobo Association Emotion Cognition Lab SWPS University Poland Visual Narratives Laboratory Lodz Film School Poland National Information Processing Institute Institute of Contemporary Culture University of Lodz Poland Arts et Métiers Institute of Technology Software for Space Systems and Interactive Visualization German Aerospace Center Germany

Revived interest in lunar and planetary exploration is heralding a new era for human spaceflight, characterized by frequent strain on astronaut's mental well-being, which stems from increased exposure to isolated, confined, and extreme (ICE) conditions. Whilst Immersive Virtual Reality (IVR) has been employed to facilitate self-help interventions to mitigate challenges caused by isolated environments in several domains, its applicability in support of future space expeditions remains largely unexplored. To address this limitation, we administered the use of distinct IVR environments to crew members (n=5) partaking in a simulated lunar habitat study. Utilizing a Bayesian approach to scrutinize small group data, we discovered a significant relationship between IVR usage and a reduction in perceived stress-related symptoms, particularly those associated with asthenia (syndrome often linked to chronic fatigue and weakness;a condition characterized by feelings of energy depletion or exhaustion that can be amplified in ICE conditions). The reductions were most prominent with the use of interactive virtual environments. The'Aesthetic Realities' - virtual environments conceived as art exhibits - received exceptional praise from our participants. These environments mark a fascinating convergence of art and science, holding promise to mitigate effects related to isolation in spaceflight training and *** Codes 93B51, 97M50 Copyright © 2023, The Authors. All rights reserved.

关键词： Ecosystems

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Enabling a conceptual data model and workflow integration environment for concurrent launch vehicle analysis 69

Enabling a conceptual data model and workflow integration en...

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69th International Astronautical Congress: #InvolvingEveryone, IAC 2018

作者： Fischer, Philipp M. Deshmukh, Meenakshi Koch, Aaron D. Mischke, Robert Gomez, Antonio Martelo Schreiber, Andreas Gerndt, Andreas DLR German Aerospace Center Software for Space Systems and Interactive Visualization Lilienthalplatz 7 Braunschweig38108 Germany DLR German Aerospace Center Space Launcher System Analysis Robert-Hooke-StraÃŸe 7 Bremen28359 Germany DLR German Aerospace Center System Analysis Space Segment Robert-Hooke-StraÃŸe 7 Bremen28359 Germany DLR German Aerospace Center Intelligent and Distributed Systems Linder HÃ¶he KÃ¶ln51147 Germany

Concurrent Engineering (CE) and Model Based systems Engineering (MBSE) have increased the efficiency of spacecraft, and satellite design in particular. Early design of satellites in Concurrent Engineering centers (CEC) has almost become business as usual. However, such progress has still to be achieved for the design of launchers. Applying the same approaches as used for satellites has not led to the same amount of improvement, yet. To address this, DLR initiated the project Concurrent Launch Vehicle Analysis (CLAVA) to investigate the shortcomings and to improve the efficiency of conceptual launcher design and analysis. From an MBSE point of view, investigations show that concurrent modelling requires new Conceptual Data Models. In contrast to designing satellites, they are focused on a much more physical abstraction rather than a functional one. Regarding simulations, it has become clear that the conceptual design phase of launchers requires far more computationally intense simulations in a sequential order. With this knowledge, it is possible to outline a new process for CE studies allowing for concurrent design phases and sequential simulation phases. For this, an adjusted architecture of tools is required as well. The data model used for satellite studies within DLR's Concurrent Engineering Facility (CEF) does not fit to the requirements of launcher design and has been adapted. Additionally, DLR's aeronautics divisions have already made substantial progress in increasing the efficiency of their simulations. They employ automated simulation workflows using a parametric model for information exchange between integrated tools. This approach has been adopted and integrated. This paper outlines how this approach is combined with CE and MBSE concepts used for satellites and addresses the specific requirements of launcher design. It provides details about the database used during CE sessions, and how its information is transferred into the parametric data model used t

关键词： Concurrent engineering

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A continuous verification process in Concurrent Engineering

A continuous verification process in Concurrent Engineering

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AIAA space 2013 Conference and Exposition

作者： Schaus, Volker Tiede, Michael Fischer, Philipp M. Lüdtke, Daniel Gerndt, Andreas German Aerospace Center Simulation and Software Technology 38108 Braunschweig Germany German Aerospace Center Simulation and Software Technology Department Software for Space Systems and Interactive Visualization 38108 Braunschweig Germany

ISBN: (数字)9781624102394

ISBN: (纸本)9781624102394

This paper presents how a continuous mission verification process similar than in software engineering can be applied in early spacecraft design and Concurrent Engineering. Following the Model-based systems Engineering paradigm, all engineers contribute to one single centralized data model of the system. The data model is enriched with some extra information to create an executable representation of the spacecraft and its mission. That executable scenario allows for verifications against requirements that have been formalized using appropriate techniques from the field of formal verification. The paper focuses on a current approach of integrating this verification mechanism into our Concurrent Engineering environment. In an example study, we explain how basic mission requirements are created at the beginning of the spacecraft design. After each iteration and change, the integrated verification will be executed. This instantly highlights the effects of the modification and points out potential problems in the design. Using the continuous verification process alongside the Concurrent Engineering process helps to mature both, the requirements and the design itself.

关键词： Formal verification

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A Formal Method for Early spacecraft Design Verification

A Formal Method for Early Spacecraft Design Verification

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IEEE aerospace Conference

作者： Philipp M. Fischer Daniel Ludtke Volker Schaus Andreas Gerndt Software for Space Systems and Interactive Visualization Simulation and Software Technology German Aerospace Center (DLR)

ISBN: (纸本)9781467318129

In the early design phase of a spacecraft, various aspects of the system under development are described and modeled using parameters such as masses, power consumption or data rates. In particular power and data parameters are special since their values can change depending on the space-crafts operational mode. These mode-dependent parameters can be easily verified to static requirements like a maximum data rate. Such quick verifications allow the engineers to check the design after every change they apply. In contrast, requirements concerning the mission lifetime such as the amount of down-linked data during the whole mission, demands a more complex procedure. We propose an executable model together with a simulation framework to evaluate complex mission scenarios. In conjunction with a formalized specification of mission requirements it allows a quick verification by means of formal methods.

关键词： system modeled data parameters

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Comparing Three Interaction Methods for Manipulating Thin Deformable Virtual Objects

Comparing Three Interaction Methods for Manipulating Thin De...

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19th IEEE Virtual Reality Conference

作者： Hummel, Johannes Wolff, Robin Gerndt, Andreas Kuhlen, Torsten Software for Space Systems and Interactive Visualization German Aerospace Agency (DLR) Germany Virtual Reality Group RWTH Aachen University Germany

ISBN: (纸本)9781467312462

We present results of a user study in which we compared three interaction methods for manipulating deformable objects in immersive virtual environments. The task was to control a virtual robot hand removing a thin foil cover from a satellite in an on-orbit servicing training simulator. The lack of haptic feedback placed a high challenge on the user when trying to apply the right force for grasping the foil without losing grip or damaging it. We compared the intuitiveness and effectiveness of using a tracked joystick, finger distance measurement, and a novel prototype enabling direct force input through pinching.

关键词： Virtual pinching simulator training satellites thin foil

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Collaborative Satellite Configuration Supported by interactive visualization

Collaborative Satellite Configuration Supported by Interacti...

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IEEE aerospace Conference

作者： Philipp M. Fischer Robin Wolff Andreas Gerndt Software for Space Systems and Interactive Visualization Simulation and Software Technology German Aerospace Center (DLR) 38108 Braunschweig Germany

ISBN: (纸本)9781457705564

Planning a spacecraft requires the expert knowledge from diverse disciplines, such as propulsion or structure. Reliable communication between the experts is crucial, as the individual requirements of a satellite's various subsystems heavily depend on each other. Today, early mission design sessions are often held in specially designed rooms, so-called concurrent engineering facilities. Here, the experts come together and directly discuss with each other in a shared place, enabling them to find a common ground much quicker. Nevertheless, in certain aspects it remains difficult for the experts to share and describe their knowledge within the team. In particular for configuration purposes it is a hurdle to verbally discuss positions and orientations of different parts. We propose a new approach of using shared interactive visualization for the configuration task, which enables every engineer to individually place parts and to alter it in case of discrepancies.

关键词： Professional personnel satellite configurations Expert Opinion Propulsion interactive visualization spacecraft

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Open Source software Framework for Applications in Aeronautics and space

Open Source Software Framework for Applications in Aeronauti...

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IEEE aerospace Conference

作者： Doreen Seider Markus Litz Andreas Schreiber Philipp M. Fischer Andreas Gerndt Distributed Systems and Component Software Simulation and Software Technology German Aerospace Center (DLR) 51147 Cologne Germany Software for Space Systems and Interactive Visualization Simulation and Software Technology German Aerospace Center (DLR) 38108 Braunschweig Germany

ISBN: (纸本)9781457705564

The DLR developed the open source software framework RCE to support the collaborative and distributed work in the shipyard industry. From a technology side of view a software from the shipbuilding field has many requirements in common with aerospace software projects. Accordingly, RCE has become the basis for further projects within the DLR. Over the last years of usage a subset of frequently used software components could be derived and are provided by the RCE framework. In particular, the workflow engine, allowing the integration of different domain-specific tools from local and remote locations into one overall calculation has become important for various projects. We present RCE and show how its software components are reused in two aerospace applications.

关键词： Astronautics open source software computer software aerospace applications Remote locations computer programs Frameworks workflow engine

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Comparing three interaction methods for manipulating thin deformable virtual objects

Comparing three interaction methods for manipulating thin de...

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IEEE Annual International Symposium Virtual Reality

作者： Johannes Hummel Robin Wolff Andreas Gerndt Torsten Kuhlen Software for Space Systems and Interactive Visualization DLR-German Aerospace Agency Germany Virtual Reality Group RWTH Aachen University Germany

关键词： Force Robots Satellites Prototypes Electronic mail Force measurement Training

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