Abstract:
A structure comprising a plurality of plies of fiber-reinforced composite material, each ply having a ply orientation defined by a principal stiffness direction of the ply. The structure has a first region and a second region, each region comprising N1 primary plies, N4 cross plies with a ply orientation substantially perpendicular to the primary plies, N2 positive-angled bias plies with a ply orientation at a positive acute angle to the primary plies, and N3 negative-angled bias plies with a ply orientation substantially perpendicular to the positive-angled bias plies. The ply orientation of the primary plies in each region is more closely aligned with a primary axis of the structure than the cross plies or the bias plies. N1=N4 in the first region but not in the second N region, and N2=N3 in the second region but not in the first region. In each of the two regions, one ply set is balanced and the other ply set is un-balanced. This provides a compromise between the advantages of using un-balanced ply sets, for instance to provide bending torsion coupling, and the disadvantage that un-balanced ply sets can introduce thermally induced distortion during manufacture.
Abstract:
A method of forming a hybrid component comprising at least two metallic parts, the method comprising preparing a first metallic part by forming at least one macroscopic interfacing feature on an interfacing surface of the part; positioning the first part in a mould tool; introducing a metallic powder into the mould tool and around the interfacing feature(s); and consolidating the metallic powder by a Hot-Isostatic Pressing (HIP) process to form a second metallic part which encapsulates the interfacing feature(s) to provide a mechanical connection between the first and second parts of the component. Also, a hybrid component so formed. The metallic parts may have substantially different material properties.
Abstract:
A method of joining a first component to a second component, the method comprising forming an array of projections extending from a bond surface of the first component, the projections having a plurality of different profiles; and embedding the array of projections in the second component formed of a plurality of laminate plies, wherein each projection profile is adapted to best transfer load into a respective one of the laminate plies. The resultant joint is able to transfer load more progressively between the two components leading to improved tensile strength.
Abstract:
A structure comprising a plurality of plies of fibre-reinforced composite material, each ply having a ply orientation defined by a principal stiffness direction of the ply. The structure has a first region and a second region, each region comprising N1 primary plies, N4 cross plies with a ply orientation substantially perpendicular to the primary plies, N2 positive-angled bias plies with a ply orientation at a positive acute angle to the primary plies, and N3 negative-angled bias plies with a ply orientation substantially perpendicular to the positive-angled bias plies. The ply orientation of the primary plies in each region is more closely aligned with a primary axis of the structure than the cross plies or the bias plies. N1=N4 in the first region but not in the second N region, and N2=N3 in the second region but not in the first region. In each of the two regions, one ply set is balanced and the other ply set is un-balanced. This provides a compromise between the advantages of using un-balanced ply sets, for instance to provide bending torsion coupling, and the disadvantage that un-balanced ply sets can introduce thermally induced distortion during manufacture.
Abstract:
An electric motor comprising a stator having two coil sets arranged to produce a magnetic field of the motor, each coil set comprising a plurality of coil sub-sets; and two control devices, wherein the first control device is coupled to the plurality of coil sub-sets for the first coil set and the second control device is coupled to the plurality of coil sub-sets for the second coil set and each control device is arranged to control current in the respective plurality of coil sub-sets to generate a magnetic field in each coil sub-set to have a substantially different magnetic phase to the other one or more coil sub-sets in the respective coil set; and wherein the first control device and the second control device are mounted adjacent to the stator.
Abstract:
A system, method, software arrangement and computer-accessible medium are provided for tracking moveable objects, such as large balls, that a group of participants can interact with. For example, the motion of the objects may be used to control or influence the motion of certain virtual objects generated in a virtual environment, which may interact with other virtual objects. The virtual objects and their interactions may be used to generate video information, which can be displayed to the participants and which may indicate the occurrence of certain game-related events. Audio information may also be generated based on the interactions, and used to produce sounds separately from or in conjunction with the virtual objects.
Abstract:
The Roller Cover Remover design, use and specifications are included in the Specification section. The product will be produced through an injection molding process using softer plastics. It is designed to cleanly and easily move wet roller covers from the cage of a roller quickly and also to be closed with a cap allowing for storage for later use desired.The Roller Cover Remover will be produced using softer plastics which will allow a user to exert small amounts of pressure on the roller cover without damaging it.The Roller Cover Remover will have a series of small raised round bumps on the exterior to allow for a secure grip.The Roller Cover Remover will have a locking device to ensure device will be secure during the removal process and storage period if desired.The Roller Cover Remover will have a living hinge design made of soft, flexible plastic which will prevent wet paint from accumulating between piano type hinge sections so as to prevent any impediment to functionality.The Roller Cover Remover will have a slightly inward angled design on the open end so as to fit perfectly over the cover end piece and provide additional gripping and leverage to support the removal process. A cap will be available to insert in this end for closure during optional storage.The Roller Cover shown in the drawings is designed to fit perfectly over standard roller covers. Alternate designs will include specifications for different size roller covers where applicable.The Roller Cover Remover design may be varied during production to utilize more functional or cost effective materials that currently anticipated and described.
Abstract:
A method of preparing a component (60) to be joined to another component (55). The method comprises growing an array of projections (56, 57) on a bond region of the component (55) in a series of layers, each layer being grown by directing energy and/or material from a head to selected parts of the bond region. The joint may be used to join a pair of structural components, for instance in an aerospace application. For instance the joint may be used to join a reinforcing plate, floating rib foot, or stringer to a panel such as a wing or fuselage cover. Alternatively the joint may be used to join adjacent layers in a laminate structure.