Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"Shape optimisation"”.
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Geometric modelling and shape optimisation of pharmaceutical tablets. Geometric modelling and shape optimisation of pharmaceutical tablets using partial differential equations.
… hand can over-come this problem. A technique for shape modelling of pharmaceutical tablets based on the use of Partial Differential Equations is presented in this thesis. The volume and the sur-face area of the generated parametric tablet in various shapes have been es-timated numerically. This …
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Shape Optimisation for Hydrodynamic Stability and its Application to Cyclone Separators
… eigenvalue problem which gives a series of mode shapes (the eigenfunctions) and their growth rates and frequencies (the eigenvalues). This thesis calculates and interprets the shape sensitivity of the eigenvalue of a global stability analysis. The shape sensitivity allows quick calculation of the …
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The design of adaptive structures for wing morphing
… adaptive structures for achieving global multi-shape morphing aerodynamic configurations, by using slender structures. The proposed methodologies pursue two threads towards global optimisation of morphing structures, by providing means of aerodynamic enhancement, using efficient structural shape …
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Isogeometric Design, Analysis and Optimisation of Lattice-Skin Structures
… the geometric design, structural analysis and optimisation of lattice-skin structures is proposed in the dissertation. In the geometric design of lattice-skin structures, a novel shape interrogation scheme for splines, specifically subdivision surfaces, is proposed, which is able to compute the …
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Applications of the Discrete Adjoint Method in Computational Fluid Dynamics
… fluid dynamics are considered. The first is shape optimisation, where the discrete adjoint approach is employed to compute the derivatives with respect to shape parameters for a performance functional depending on the solution of a mathematical flow model which has the form of a discretised …
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Methods for designing the next generation of aircraft architectures using topology optimisation
… aircraft may not be applicable. Topology optimisation is the logical tool to employ in this type of situation, as its generality removes the need for any assumption of what the structure should be. Several barriers exist that stand in the way of topology optimisation’s use in designing …
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Minimising Embodied Carbon in Concrete Floors
… alternative construction forms, and optimising shapes can reduce the embodied carbon of steel-reinforced concrete floors. Four interconnected optimisation studies are illustrated in this thesis: (1) shape optimisation of reinforced concrete beams using a parametric design approach to achieve …
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CONFIGURATIONAL FORCES IN STRUCTURAL AND CONTINUUM OPTIMISATION
This thesis deals with optimisation using the principles of continuum mechanics. Both shape and mesh optimisation will be covered. A unified approach will be introduced to obtain shape and mesh optimisation for hyperelastic, hyperelastodynamic and hyperelastoplastic settings. The approach makes use …
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Intelligent design of microfluidic components for Newtonian and complex fluid systems
… and extensional flows. Biomimetic principles and shape optimisation methods are employed to propose new designs for single-phase fluid flow. Furthermore, the single-phase numerical solver is extended to cope with two-phase systems, thus paving the way for new applications of these techniques. …
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Stability analysis of edge corrugated shells
… a structure with constant thickness, but its shape is slightly changed near the edge, so the shell is corrugated where an increase of stiffness is needed. The ongoing research deals with the instability problems and how this shape change can affect global mechanical behaviour. Firstly, a …