Proceedings of the Munich Symposium on Lightweight Design 2020: Tagungsband zum Münchner Leichtbauseminar 2020

Preface
Organization
Contents
1 Design of a motorcycle triple clamp optimised for stiffness and damping
	1 Introduction
	2 Theoretical background
		2.1 Hand-arm vibrations
		2.2 Measures to reduce hand-arm vibrations on motorcycles
		2.3 Use of laser beam melted particle dampers
	3 Design of a motorcycle triple clamp
		3.1 Methological approach
		3.2 Determining the load conditions on the motorcycle stem
		3.3 Parameter study of the triple clamp
		3.4 Topology optimisation
		3.5 Insertion of cavities for the integration of particle damping
		3.6 Proof of static strength
	4 Discussion
	5 Conclusion
	6 References
2 Fully Automated Subdivision Surface Parametrization for Topology Optimized Structures and Frame Structures using Euclidean Distance Transformation and Homotopic Thinning
	Abstract
	1 Introduction
	2 State of the Art
	3 Parametrization
	4 Parametrization of Topology Optimization Results
		4.1 Fully Automated Skin Subdivision Surface Parametrization
		4.2 Shape Adjustment on Skin Subdivision Surfaces
	5 Conclusion
	6 Acknowledgment
	References
3 A Concept Towards Automated Reconstruction of Topology Optimized Structures Using Medial Axis Skeletons
	1 Redesign of topology optimized structures
	2 An approach towards a more automated reconstruction of topology optimization results
		2.1 Analysis
		2.2 Synthesis
	3 Redesign of a turbine engine bracket with a more automated approach to reconstruction of topology optimization results
	4 Summary and Outlook
	5 Acknowledgements
	References
4 Design and Optimization of Ultra-Stable Fine-Pointing Structures for the CHIME Instrument
	1 Introduction
	2 Design Trade-Offs
		2.1 Honeycomb Panel Design
		2.2 Monolithic Metal Design
		2.3 CFRP Frame Design
	3 Spectrometer Mounting Structure Design and Optimization
	4 CFRP Frame Hardware Test
	5 Conclusions and Outlook
	References
5 Lightweight engineering design of nonlinear dynamic systems with gradient-based structural design optimization
	1 The Virtuous Circle of Lightweight Engineering Design
	2 Sensitivity analysis of nonlinear dynamic systems
	3 Structural dynamics
		3.1 Governing equation
			3.1.1 Primary analysis
			3.1.2 Sensitivity analysis
		3.2 Time integration
			3.2.1 Primary analysis
			3.2.2 Sensitivity analysis
		3.3 Nonlinear solver
			3.3.1 Primary analysis
			3.3.2 Sensitivity analysis
	4 Rigid multibody dynamics
		4.1 Governing equation
			4.1.1 Primary analysis
			4.1.2 Sensitivity analysis
		4.2 Time integration
		4.3 Nonlinear solver
			4.3.1 Primary analysis
			4.3.2 Sensitivity analysis
	5 Numerical example – Optimal design of a hydropower intake rack cleaning mechanism
	6 Conclusion
	Acknowledgments
	References
6 Hard- and Software fusion for process monitoring during machining of fiber reinforced materials
	1 Introduction
	2 Hardware fusion
	3 Software fusion
	4 Conclusions
	References
7 Additive manufactured break-out cores for composite production: A case study with motorcycle parts
	1 Introduction
	2 Additive manufactured break-out cores
	3 Design of breaking lines
	4 Case study
		4.1 Flow intake
		4.2 Tank structure
	5 Discussion
	6 Summary and outlook
	References
8 Neue Bauweisen von Wasserstoffdruckbehältern für die Integration in zukünftige Fahrzeugarchitekturen
	1 Motivation und Stand der Technik
		1.1 Ökologischer und wirtschaftlicher Hintergrund der Untersuchungen
		1.2 Fahrzeugarchitekturen für zukünftige emissionsfreie Antriebsvarianten
		1.3 Geometrische Anpassung der Druckbehälterform als Lösung
		1.4 Wasserstoffspeicher in aktuellen Brennstoffzellenfahrzeugen
	2 Zylindrische Druckbehälter
		2.1 Konzeptvarianten
		2.2 Fertigungstechnologie und Permeation als zentrale Herausforderungen
		2.3 Abschätzung des Einsatzpotenzials für zukünftige Fahrzeugarchitekturen
	3 Quaderförmige Druckbehälter mit Zugstreben
		3.1 Konzeptvarianten
		3.2 Außengeometrie des Behälters und Grobauslegung der Zugstreben
		3.3 Fertigungsverfahren
		3.4 Abschätzung des Einsatzpotenzials für zukünftige Fahrzeugarchitekturen
	4 Schlussfolgerung
	Literatur
9 Bauraumoptimierter Wasserstoff Tank mit innerer Zugverstrebung
	1 Problemstellung, Bauweise und Dichtigkeit
	2 Fertigungskonzept
	3 Zusammenfassung
	Literaturverzeichnis
10 Innovative design and manufacturing techniques for fiber reinforced plastic components
	1 Introduction
	2 Trace (Tsai’s modulus1) on engineering constants
	3 Universal and Master Ply Constants and Laminate Factors
	4 Unit circle criterion
	5 Double-double architecture for sub-laminates
		5.1 Field equation for stiffness
		5.2 Homogenization
		5.3 Quad-axial replacements
		5.4 Optimization by Lamsearch
		5.5 Manufacturing of double and double-double fabrics and tapes
	6 Skin-grid structures
	References
11 Application of Tsai’s Theory for the Laminate Optimization of an Aerospace Wing Box
	1 Introduction
	2 Optimization of a Wing Box
		2.1 Finite Element Model
		2.2 Laminate Optimization with EA and ARSM
		2.3 Laminate Optimization with Laminate Search
		2.4 Thickness Scaling
	3 Discussion of the Wing Box Optimization
		3.1 Material Selection
		3.2 Comparison with Aluminum
		3.3 Laminate Homogenization
		Conclusion
		Declaration of Competing Interest
		References
Author Index