Saab Automobile AB

About: Saab Automobile AB is a based out in . It is known for research contribution in the topics: Radar & Antenna (radio). The organization has 760 authors who have published 890 publications receiving 11811 citations.

Collaborative multidisciplinary design optimization: A framework applied on aircraft conceptual system design:

Abstract: In a product development process, it is crucial to understand and evaluate multiple and synergic aspects of systems such as performance, cost, reliability, and safety. These aspects are mainly considered during later stages of the design process. However, in order to improve the foundations for decision-making, this article presents methods that are intended to increase the engineering knowledge in the early design phases. In complex products, different systems from a multitude of engineering disciplines have to work tightly together. Collaborative design is described as a process where a product is designed through the collective and joint efforts of domain experts. A collaborative multidisciplinary design optimization process is therefore proposed in the conceptual design phase in order to increase the likelihood of more accurate decisions being taken early on. The performance of the presented framework is demonstrated in an industrial application to design aircraft systems in the conceptual phase.

Arrangement for a transparent covering element with an electro-chromatic layer

Abstract: A covering element (1) consisting of transparent material is designed with an electro-chromatic layer (3-7) for control of the transmission of light through the covering element (1). The electrical power which is required for control of the electro-chromatic layer (3-7) is obtained from a photo-electric layer (9-11) integrated in the covering element (1). The photo-electric layer (9-11) is arranged outside the electro-chromatic layer (3-7). By means of the arrangement, when the light is at its most intensive, a high voltage is obtained from the photo-electric layer (9-11) and can be transferred to the electro-chromatic layer (3-7) so as to in this connection reduce, at least to a considerable extent, the transmission through the covering element (1). The arrangement can, within vehicle technology for example, be used in a sun-roof in order prevent heating up of an interior space in sunny weather. By means of the arrangement, the transmission is automatically adapted according to the light. The arrangement also leads to the complete elimination of the risk that the vehicle battery will be discharged, since all the energy which is supplied to the electro-chromatic layer (3-7) is generated in the photo-electric layer (9-11).

Two-mode radar level gauge system

Abstract: A radar level gauge system for gauging the level of a filling material in a container is disclosed. The system comprises a waveguide extending towards the surface of said filling material; a transmitter for transmitting a microwave signal of a first mode of propagation in the waveguide; and a receiver for receiving the microwave signal reflected against the surface of the filling material and propagating back through the waveguide. Further, it comprises a processing circuitry for determining the filling level of the container based on the reflected microwave signal; and a transition element connecting the waveguide and the transmitter, wherein the transition element is configured to allow a part of the transmitted microwave signal to leak into a second mode of propagation. The first and second modes of propagation are within a frequency band which admits propagation of said microwave signal in the two different modes of propagation in the waveguide, wherein the receiver is arranged to receive the microwave signal in the at least two different modes of propagation.

Seaeye Sabertooth A Hybrid AUV/ROV offshore system

Abstract: Increasing use and complexity of subsea installations has put focus on the costs of maintaining these systems. In addition, access to these systems is sometimes limited by adverse weather and ice conditions. Conventional methods for intervention, maintenance and repair (IMR) using surface ships and ROVs are very expensive furthermore are response and mobilization times slow. To address this Saab Underwater Systems is in the process of developing a hovering Hybrid AUV/ROV system to remotely perform IMR without or strongly reduced need for a supporting ship. This system is based on the Double Eagle SAROV, a hovering Hybrid AUV/ROV in production for the military market and proven components from Saab Seaeye ROV product range.

Method and arrangement for sound-suppression in wheels

Abstract: A method and a device for sound suppression, in wheels, of natural frequency sound originating from an air cavity which is inside the wheel between the tire and the rim, which includes at least one resonator arranged inside the wheel. The resonator is designed for the suppression of sound resulting from the natural frequency of the wheel and is preferably formed of four quarter-wave resonators or of Helmholtz-resonators.