Saab AB

About: Saab AB is a company organization based out in Thun, Switzerland. It is known for research contribution in the topics: Signal & Antenna (radio). The organization has 862 authors who have published 928 publications receiving 8807 citations. The organization is also known as: Saab AB & Svenska Aeroplan AB.

Vacuum bag for hot drape forming

Abstract: The present invention regards a method and an apparatus for conforming a blank (35) onto forming surface sections (3) of a forming tool (5) by drawing vacuum against an elastic vacuum bag (1) for transmitting forming forces from the elastic vacuum bag (1) to the blank (35), the elastic vacuum bag (1) comprises at least one bag section having a different stiffness than other bag sections. The at least one bag section is an elongated bag section (13,13) having a stiffness larger than that of surrounding bag sections (15), the location of the elongated bag section (13,13) of the elastic vacuum bag (1) corresponds, when the elastic vacuum bag (1) after said completion lies against the forming surface sections (3) having the blank (35) in between, with an elongated forming surface section (10) of the forming tool (5) where the blank (35) requires a forming force (F) being larger than that of the surrounding bag sections (15).

A method and apparatus for manufacturing a curved elongated structural element

Abstract: The present invention relates to a method and an apparatus for manufacturing of a curved elongated structural element (20) of composite material, the curved elongated structural element (20) comprises a first elongated portion (23) and a second elongated portion (25) in an angled relation, the method comprises the steps of: providing a substantially flat blank (1) of composite material comprising a first (19') and second elongated edge (19"); folding the blank (1) over a first portion forming surface (31) and a second portion forming surface (33) of a forming tool's (15) flexible tool body (17) for forming the first elongated portion (23) and the second elongated portion (25); and bending the forming tool's (15) tool body (17) such that its bending moment centre (Mc) prevails essentially adjacent the first portion forming surface (31).

An investigation of work practices used by companies making contributions to established OSS projects

Abstract: Professionals contribute to open source software (OSS) projects as part of their employment. Previous research has addressed motivations of individuals and the ways they engage with OSS projects. However, there is a lack of research which examines and explains work practices used by companies in their engagement with projects. Work practices used by companies to contribute to five established OSS projects are investigated through examination of the actions of employees in public communication channels and draw on our experiences when analysing engagement with the same projects. We find that companies utilise work practices for contributing which are congruent with the circumstances and their capabilities that support their short and long term needs. We find that companies contribute to OSS projects in different ways, such as employing core project developers, making donations, and joining project steering committees in order to advance strategic interests.

Situational adapting system supporting team situation awareness

Abstract: Military fighter pilots have to make suitable decisions fast in an environment where continuously increasing flows of information from sensors, team members and databases are provided. Not only do ...

Device and method for a drive shaft

Abstract: The invention concerns a method and device for a drive shaft (6), which drive shaft is arranged at its first end for operative connection with a drive mechanism (4) that applies a first torque to the drive shaft, and which drive shaft is arranged at its second end for operative connection with a mechanism (9) driven by the drive shaft. The invention is characterized in that the drive shaft (6) has, at at least one of its ends, a notch (15) arranged so as to receive a connector (12, 10) for the associated mechanism, and in that the wall (7) of the notch is made, in at least one area at said end, of fiber composite material comprising a first set of fibers that extends into the notch wall in a direction falling roughly within a range of +( 10° -80°) relative to the longitudinal direction of the drive shaft, where the positive range of angles indicates that the fibers are oriented in the first direction of torque. The first torque is thereby arranged so as to bring about transverse contraction of the shaft in said notch area so as to impose a clamping grip on the associated mechanism connector.