Sebastian Spitzer

• Doctor of Engineering
• Head of Lightweight Design at Technische Universität Dresden

For the integration of hydrogen storage in the center wing of a commuter aircraft, the requirements for the storage system are specified and the boundary conditions are analyzed. High-pressure storage tanks with increased gravimetric storage density are designed for the resulting installation space. In the first step, an analytical dimensioning of...

Maritime transport routes are vital for Europe as a key player in the global economy. The European Commission is seeking to transform it into a smart, green system, with the European Green Deal strategy targeting a 90% reduction in emissions by 2050 through sustainable alternatives. Ammonia (NH3) as an energy carrier offers the potential for fossil...

This paper presents parts of the engineering design process and the resulting concept for an electric engine for aviation purpose. Based on the requirement classes mentioned in [1], the concrete requirements resulting from flight operation and the approach of cooling with cryogenic gaseous hydrogen are first compiled. Then, the selected electrical...

For the integration of hydrogen storage in the center wing of a commuter aircraft, the requirements for the storage system are specified and the boundary conditions are analyzed. High-pressure storage tanks with increased gravimetric storage density are designed for the resulting installation space. In a first step, an analytical dimensioning of th...

Hybrid metal-composite structures offer high potential in lightweight engineering. These hybrid structures bring advantages in strength, stiffness and weight. These hybrid structures are predestined for highly stressed elements such as car body parts. The combination of the different materials leads to a complex process in the design as well as in...

Content Automated Driving – Systems Criticality driven data acquisition in autonomous driving – A basis for completeness and safety argumentation 1 Vehicle-to-vehicle (V2V) communication as enabler for improved automated driving functions 17 Electronics Technology Estimation of Gender and Age of Vehicle Occupants Using Deep Learning 27 QuietComfort...

Elektrische Antriebe oder Hochleistungsgeneratoren sind Schlüsselelemente für eine emissionsarme Luftfahrt. Die damit einhergehenden elektronischen Elemente führen zu einem erheblichen Masseeintrag in fliegende Systeme. Nur durch eine deutliche Steigerung der Leistungsdichte elektrischer Maschinen wird elektrisches oder hybrid-elektrisches Fliegen...

This paper presents a quality assessment approach to evaluate the topology and fiber orientation of complex shaped variable-axial layers in the preforming process of an airfoil as part of a structural composite jet engine guide vane. An overview about the manufacturing-process of variable-axial composite vanes is given and the concept of Digital Tw...

The mode shapes and loss factors of a modular carbon fibre-reinforced plastic (CFRP) composite impeller were determined experimentally and virtually at the component and the impeller level from the validation pyramid. The results are compared with those of investigations on steel reference models and structures. Good correlations were found between...

Radial impellers made of continuous fibre-reinforced composite material in modular design are spin rig tested until failure up to 538 m/s. Using high-speed recordings during the test and fracture analysis, it is possible to interpret the damage and failure behaviour of the structure and compare it with the results of the numerical simulation. One f...

Aerodynamical and structural outlet guide vanes for jet engine intermediate cases can be made out of titanium, multi-axial or variable-axial CFRP. The absolute and density specific stiffnesses of the material approaches and the engine structures are compared. The lightweight potential for different 1-to 3-directional load scenarios are shown. Appli...

For a circular economy, the ability of a precise identification of products and materials in all life cycle phases is an enabler. Markers can be used effectively for material identification and they can also be physically integrated into the semi-finished polymer. This paper focuses on the integration of fluorescent particles into fiber-reinforced...

The continuously growing social and political pressure to provide sustainable products is forcing also the lightweight industry to rethink current development and manufacturing processes. While established development approaches in lightweight engineering mainly focus on technical and economical product requirements they usually do not consider sus...

For electric aviation drive systems engines with significantly increased power density are required. Combining the technologies of additive manufacturing of metals with the technologies of fiber reinforced composites enables hybrid structures with same or increased functionality and lower mass. Rotors or housings in hybrid design have interfaces to...

This paper presents a design concept, a modelling methodology and a manufacturing approach for a structural and aerodynamic jet engine blade (vane) made of variable-axial (VA) composite. Based on the boundary conditions of jet engine load scenarios, a composite design of the vane is developed. For the external vane loads, the optimal fibre trajecto...

Steigende Anforderungen an die Leistungsfähigkeit und Effizienz von Triebwerken lassen sich durch den Einsatz von Metall-Faserverbund-Bauweisen erfüllen. Faser-Kunststoff-Verbunde (FKV) mit ihren herausragenden und einstellbaren mechanischen Eigenschaften bieten das Potential, die Masse strukturell hochbelasteter Komponenten zu reduzieren. Durch di...

More and more effort in development processes is required to meet the constantly increasing demands on technical components. Especially in hybrid structures, the high number of degrees of freedom in development due to the different material properties and interactions between them leads to complex and multi-disciplinary processes. Digitalisation is...

Hybrid metal-composite structures offer high potential in lightweight engineering. These hybrid structures combine different materials to create components that are far ahead of the classic designs in terms of strength, stiffness and weight. Next to the advantages, the manufacturing of such components is highly complex. Additionally, increasing req...

More and more effort in development processes is required to meet the constantly increasing demands on technical components. Especially in hybrid structures, the high number of degrees of freedom in development due to the different material properties and interactions between them leads to complex and multi-disciplinary processes. Digitalisation is...

Braiding is an attractive manufacturing method for tubular elements such as hollow shafts and struts. One of the main challenges however is the integration of suitably performing end-fittings. Recent advances in additive layer manufacture have enabled the fabrication of end-fittings which can be ‘co-impregnated’ or ‘co-cured’ with the fibre preform...

Vorwort Die Bedeutung von Schraubenverbindungen für den allgemeinen Maschinenbau, die Energietechnik,den Fahrzeug- und Anlagenbau und für weitere Anwendungsgebiete ist auch in denletzten Jahren nicht geringer geworden. Infolge einer Reihe herausragender Vorteile stellen besonders die hochfesten Schraubenverbindungen auch weiterhin eine wirtschaftli...

Vorwort Sehr geehrte Damen und Herren, der durch die Globalisierung zunehmende Wettbewerb zwingt die Unternehmen zu teils radikalen wertanalytischen Maßnahmen – meist verbunden mit einer zunehmenden Ausnutzung aller Festigkeitsreserven der im Kraftfluss liegenden Bauteile. Besonders betroffen davon sind die an den Schnittstellen platzierten Welle-N...

Vorwort Sehr geehrte Damen und Herren, der durch die Globalisierung zunehmende Wettbewerb zwingt die Unternehmen zu teils radikalen wertanalytischen Maßnahmen – meist verbunden mit einer zunehmenden Ausnutzung aller Festigkeitsreserven der im Kraftfluss liegenden Bauteile. Besonders betroffen davon sind die an den Schnittstellen platzierten Welle-N...

http://www.iccm-central.org/Proceedings/ICCM18proceedings/data/2.%20Oral%20Presentation/Aug22%28Monday%29/M27%20Applications%20of%20Composites/M27-2-IF1496.pdf