The aerospace industry is currently addressing the problem of integrating design and manufacturing. Because of the difficulties associated with using conventional, procedural techniques and algorithms, it is the authors' belief that the only feasible way to integrate the two concepts is with the development of an appropriate Knowledge-Based System (KBS). The authors propose a methodology for an...

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In this paper we examine the design of metallic and composite aircraft wings in order to assess how the use of composites modifies the trade-off between structural weight and drag. In order to perform this assessment, we use a gradient-based aerostructural design optimization framework that combines a high-fidelity finite-element structural model that includes panel-level design variables with ...

Critical parts in aircraft manufacturing such as stringers are very commonly used in modern aircraft structures to resist the compressive loads caused by the aerodynamic effects. They are generally made-up of thin aluminium (Al) metal sheets and are one of the key components in the aircraft wings. Any defects in the stringer leads to weakening of the stiffness of the whole wing structure and co...

Mass customization manufacturing (MCM) has been gaining recognition as an industrial revolution in the 21st century. This paper presents innovative approaches in realizing and exercising MCM in theoretical and practical applications. Strategies of generalized production line platform and modularization are explored to support dynamic reconfigurations of MCM. NIST’s XML-based Shop Data informati...

Exploring information theory concepts in various filtering applications is not a new idea. It has been done for decades and the number of papers written are beyond the scope of this project. A more specific filter, known as the Kalman filter, has not been extensively explored from an information theoretic perspective. The kalman filter’s most common applications has been for the control of comp...

Li-ion cell thermal-runaway failures can occur due to poor cell or battery-pack design (electrochemical or mechanical), manufacturing flaws, external abuse, and poor charger or system design. Fortunately, a procedure for detecting future failures shows promise. Internal cell faults continue to lead to thermal runaway failures in Li-ion battery packs used in the field. Though these events are ra...

This research seeks to investigate the new product development (NPD) approaches and the supply chain redesign strategies as part of the sustainable development. A systematic approach of literature review will be undertaken in order for effective gathering a set of structured data to act as a basis for the further discussions. The case of Boeing Dreamliner provides with a qualitative research me...

Multidisciplinary design optimization is considered in the context of designing a family of aircraft. A framework is developed in which multiple aircraft, each with different missions but sharing common parts, can be optimized simultaneously. The new framework is used to gain insight to the effect of design variable scaling on the optimization algorithm. Results are presented for a two-member f...

Whilst existing composite aircraft designs carry additional weight to mitigate the risk of undetected nonconformance to design, new non-destructive characterisation (NDC) methods offer a leaner future for composite designs through complete verification of conformance. The structural-integrity philosophy for composites in current in-service aircraft does not directly accommodate any benefit from...