26 research outputs found
Effects of Auditory Language Comprehension Program on Improvement in Communication of Children with Agenesis of the Corpus Callosum
The effect of middle-age body weight and physical activity on the risk of early revision hip arthroplasty: A cohort study of 1,535 individuals
Overweight and Obesity: Two Predictors for Worse Early Outcome in Total Hip Replacement?**
Social Work in Australian Public Libraries: An Interdisciplinary Approach to Social Justice
Optimization of a variable-stiffness skin for morphing high-lift devices
One of the possibilities for the next generation of smart high-lift devices is to use a seamless morphing structure. A passive composite variable-stiffness skin as a solution to the dilemma of designing the structure to have high enough stiffness to withstand aerodynamic loading and low stiffness to enable morphing is proposed. The variable-stiffness skin is achieved by allowing for a spatial fibre angle and skin thickness variation on a morphing high-lift system. The stiffness distribution is tailored to influence the deformation of the structure beneficially. To design a realistic stiffness distribution, it is important to take aerodynamic and actuation loads into account during the optimization. A two-dimensional aero-servo-elastic framework is created for this purpose. Skin optimization is performed using a gradient-based optimizer, where sensitivity information is found through application of the adjoint method. The implementation of the aero-servo-elastic environment is addressed and initial optimization results presented. The results indicate that a variable-stiffness skin increases the design space. Moreover, the importance of taking the change in aerodynamic loads due to morphing skin deformation into account during optimization is demonstrated.Department of Aerospace StructuresAerospace Engineerin