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Advanced in engineering technology have resulted in increased gearing performances. The use of high power density transmission systems such as epicyclic gear trains is the way to achieve the goal reducing the overall volume and mass compared with traditional configurations. Gears are the main component of the transmissions because they play the crucial role of transmitting the power from the input to the output with a defined ratio. In terms of gear performances, tooth geometry has a direct influence on load carrying capacity: increase the pressure angle modifies the tooth profile with a direct influence on bending and contact stress. To test the benefits of high pressure angles gears in epicyclic transmissions, four different epicyclic systems with same boundary design conditions have been modelled. The reference pressure angle have been varied from 20° to 35° and other gear parameters such as profile shift coefficient, addendum and dedendum length have been modified consequently to match the design requirements. The results show that increasing the pressure angle has a reductive effect on contact and bending stresses. Using high pressure angle gears in epicyclic transmissions has a beneficial effect on tensile stresses but is unfavourable for the compressive ones. Moreover, it has been seen that pressure angle effect might be enhanced or nullified if other modifications such as profile shift are used concurrently.

The inclusive growth has been the focus areas of the recent times. The governments across world have strived for the inclusive growth. The inclusive growth has been a challenge for the developing world where the basic needs of the populations have not been achieved. The developing countries have under the banner of the United Nations Framework. This paper focuses on the recent trends in the developmental agenda and its impact on the inclusive growth among the developing countries. The work also undertakes the analysis of the growth orientation framework of the developing countries.

The two-sided second-order Arnoldi algorithm is used to generate a reduced order model of two test cases of fully coupled, acoustic interior cavities, backed by flexible structural systems with damping. The reduced order model is obtained by applying a Galerkin-Petrov projection of the coupled system matrices, from a higher dimensional subspace to a lower dimensional subspace, whilst preserving the low frequency moments of the coupled system. The basis vectors for projection are computed efficiently using a two-sided second-order Arnoldi algorithm, which generates an orthogonal basis for the second-order Krylov subspace containing moments of the original higher dimensional system. The first model is an ABAQUS benchmark problem: a 2D, point loaded, water filled cavity. The second model is a cylindrical air-filled cavity, with clamped ends and a load normal to its curved surface. The computational efficiency, error and convergence are analyzed, and the two-sided second-order Arnoldi method shows better efficiency and performance than the one-sided Arnoldi technique, whilst also preserving the second-order structure of the original problem.

The automotive and aerospace industries are keen to reduce their environmental impact and so have looked to move to lightweight materials. This creates issues in terms of joining, using and disposing of dissimilar materials. Oxford Brookes has therefore worked with national and multi-national companies in the adhesive, materials, automotive and aerospace industries to try to solve these problems. This has resulted in high quality research publications, innovative test equipment, improved numerical methods, novel designs, design guidelines, manufacturing procedures, British Standards, patents, commercial products and further funding. The impact of the work has global safety, environmental and economic benefits with multi-national aerospace and automotive companies implementing the results in current developments.

Implementing measures that can maintain, as well as improve air quality is a constant challenge faced by local authorities, especially in metropolitan cities. The AVERT, EPSRC/DTI link project, led by Samuel and Morrey of Oxford Brookes University, were tasked at identifying and proposing a new strategy to limit the amount of pollutants from vehicles dynamically using remote sensing and telematics. Firstly, it established the magnitude of real-world emission levels from modern passenger vehicles using a newly developed drive-cycle. Secondly, it demonstrated a broad framework and limitations for using existing on-board computer diagnostic systems (OBD) and remote sensing schemes for the identification of gross polluting vehicles. Finally, it provided a strategy for controlling the vehicle to meet air pollution requirements. The outcomes had direct impact on Government policy on “Cars of the Future”, roadside emission monitoring, and the business strategies for both the Go-Ahead Group and Oxonica Ltd.