Conference Proceeding
Refine
Year of publication
- 2019 (76) (remove)
Institute
- Fachbereich Luft- und Raumfahrttechnik (24)
- Fachbereich Elektrotechnik und Informationstechnik (18)
- IfB - Institut für Bioengineering (12)
- Fachbereich Medizintechnik und Technomathematik (10)
- Fachbereich Maschinenbau und Mechatronik (9)
- MASKOR Institut für Mobile Autonome Systeme und Kognitive Robotik (7)
- Fachbereich Energietechnik (6)
- Solar-Institut Jülich (5)
- ECSM European Center for Sustainable Mobility (3)
- Fachbereich Bauingenieurwesen (3)
Language
- English (76) (remove)
Document Type
- Conference Proceeding (76) (remove)
Keywords
- Enterprise Architecture (2)
- Aircraft design (1)
- Case Study (1)
- Change Management (1)
- Corporate Culture (1)
- Correlations (1)
- Design rules (1)
- Digital Age (1)
- Diversity Management (1)
- Drag (1)
Laser-based Additive Manufacturing (AM) processes for the use of metals out of the powder bed have been investigated profusely and are prevalent in industry. Although there is a broad field of application, Laser Powder Bed Fusion (LPBF), also known as Selective Laser Melting (SLM) of glass is not fully developed yet. The material properties of glass are significantly different from the investigated metallic material for LPBF so far. As such, the process cannot be transferred, and the parameter limits and the process sequence must be redefined for glass. Starting with the characterization of glass powders, a parameter field is initially confined to investigate the process parameter of different glass powder using LPBFprocess. A feasibility study is carried out to process borosilicate glass powder. The effects of process parameters on the dimensional accuracy of fabricated parts out of borosilicate and hints for the post-processing are analysed and presented in this paper.
Complexity for heterogeneous classes: teaching embedded systems using an open project approach
(2019)
Design and Development of a Novel Self-Igniting Microwave Plasma Jet for Industrial Applications
(2019)
20 years after the successful ground deployment test of a (20 m) 2 solar sail at DLR Cologne, and in the light of the upcoming U.S. NEAscout mission, we provide an overview of the progress made since in our mission and hardware design studies as well as the hardware built in the course of our solar sail technology development. We outline the most likely and most efficient routes to develop solar sails for useful missions in science and applications, based on our developed `now-term' and near-term hardware as well as the many practical and managerial lessons learned from the DLR-ESTEC Gossamer Roadmap. Mission types directly applicable to planetary defense include single and Multiple NEA Rendezvous ((M)NR) for precursor, monitoring and follow-up scenarios as well as sail-propelled head-on retrograde kinetic impactors (RKI) for mitigation. Other mission types such as the Displaced L1 (DL1) space weather advance warning and monitoring or Solar Polar Orbiter (SPO) types demonstrate the capability of near-term solar sails to achieve asteroid rendezvous in any kind of orbit, from Earth-coorbital to extremely inclined and even retrograde orbits. Some of these mission types such as SPO, (M)NR and RKI include separable payloads. For one-way access to the asteroid surface, nanolanders like MASCOT are an ideal match for solar sails in micro-spacecraft format, i.e. in launch configurations compatible with ESPA and ASAP secondary payload platforms. Larger landers similar to the JAXA-DLR study of a Jupiter Trojan asteroid lander for the OKEANOS mission can shuttle from the sail to the asteroids visited and enable multiple NEA sample-return missions. The high impact velocities and re-try capability achieved by the RKI mission type on a final orbit identical to the target asteroid's but retrograde to its motion enables small spacecraft size impactors to carry sufficient kinetic energy for deflection.