Closed-face shielded TBM driven tunnels are supported using precast concrete segmental linings. In the past these types of lining have been assessed without consideration being given to the coupling action along circumferential joints of adjacent rings or the true behaviour of joints along longitudinal joints, especially where these have a taper. The mechanical and geometrical characteristics o...

Two unsteady Reynolds-averaged Navier-Stokes solvers are used to compute the rotor airloads on the UH-60A rotorcraft at several flight conditions across the flight envelope. One code, OVERFLOW, solves the flow equations using either structured grids, or a combination of structured and Cartesian grids. The other solver, FUN3D, uses unstructured grids. Both flow solvers are coupled to the same ro...

One of the main benefits of service-based systems is the loose coupling of components, which increases flexibility during the selection of internal and external business partners. However, currently this flexibility is severely limited by the fact that components have to provide not only the same functionality, but do so via virtually the same interface. Invocation-level mediation may be used t...

A core element of the recent Common Agricultural Policy reform is to decouple payments that are merely linked to production from 2005 on. These subsidies are classified as environmental harmful by OECD. An agricultural sector model, using a modified version of the positive mathematical programming method, depicts the political, natural, and structural complexity of Austrian farming. Environment...

A methodology for designing formally second-order time-accurate and yet loosely-coupled partitioned procedures for the solution of nonlinear fluid–structure interaction (FSI) problems on moving grids is presented. Its key components are a fluid time-integrator that is provably second-order time-accurate on moving grids, the midpoint rule for advancing in time the solution of the structural dyna...

One of the main benefits of service-based systems is the loose coupling of components, which allows for flexibility in the selection of internal and external business partners. However, currently this flexibility is severely limited by the fact that components have to provide not only the same functionality, but do so via virtually the same interface. Invocation-level mediation may be used to o...

As the key connecting part of rigid flexible coupling manipulator, structural dynamic characteristics bolted joint are analyzed by using simulation technology pro/e and ANSYS. Based on spring equivalent principle, finite element model bolt is established, relationship equation between contact surface pressure preload derived, its stress state analyzed; micro convex deformation Hertz theory, tan...