Sökning: "lightweight structures"

Visar resultat 26 - 30 av 62 avhandlingar innehållade orden lightweight structures.

  1. 26. Deployment Control of Spinning Space Webs and Membranes

    Författare :Mattias Gärdsback; Anders Eriksson; Gunnar Tibert; Thomas W. Murphey; KTH; []
    Nyckelord :Flexible structures; space webs; membranes; solar sails; solar power systems; deployment control; optimal control; centrifugal force deployment; spin deployment; rotation-free; shell elements; TECHNOLOGY; TEKNIKVETENSKAP;

    Sammanfattning : Future solar sail and solar power satellite missions require deployment of large and lightweight flexible structures in space. One option is to spin the assembly and use the centrifugal force for deployment, stiffening and stabilization. LÄS MER

  3. 27. Development and Characterization of Reliable Graphene-based Materials for Lightweight and Efficient Thermal Management in Electronics

    Författare :Markus Enmark; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; heat spreader; vapor chamber; thermal management; thermal interface material; wick structure; reliability testing; graphene;

    Sammanfattning : The semiconductor industry continuously aims to increase the transistor density in integrated circuits to improve performance of electronics. As performance and transistor density increases, so does the power density of integrated circuits. LÄS MER

  4. 28. Timber-concrete hybrid structural systems : Examples, long and short-term dynamic monitoring, and numerical analysis

    Författare :Carl Larsson; Michael Dorn; Åsa Bolmsvik; Thomas K. Bader; Henrik Danielsson; Linnéuniversitetet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Timber-Concrete Hybrid Structures; Timber Design; Structural Dynamics; Structural Health Monitoring; Byggteknik; Civil engineering;

    Sammanfattning : Timber-concrete hybrid buildings are an innovative solution to increase the amount of timber materials in modern buildings. Due to its lower impact on the environment than materials like steel and concrete, the demand for timber products is rising as the construction industry aims to decrease its environmental footprint. LÄS MER

  5. 29. Geotechnical Aspects of Buildings on Expansive Soils in Kibaha, Tanzania

    Författare :Charles Lucian; Staffan Hintze; Sven Knutsson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Expansive soils; soil properties; potential swell; smectite montmorillonite ; multivariate statistics; geo-statistics; spatial variability; lightweight structures; Civil engineering and architecture; Samhällsbyggnadsteknik och arkitektur;

    Sammanfattning :  The focus of this study is on potential damages to buildings resulting from expansive soils in Tanzania, particularly clay soils in Kibaha. For the fact that most of the affected structures are founded on expansive soils, a clear understanding of the behaviour of soils and their interaction with structures has been of interest to the study in order to evaluate properly the source of the problem. LÄS MER

  7. 30. Comparison of operational limit estimations for FRP laminates – effects of material modelling and stochastic behaviour

    Författare :Luis Felipe Sanchez Heres; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; safety.; FRP; reliability; probability;

    Sammanfattning : Transport companies need vehicles with higher efficiency to remain competitive and comply with environmental regulations. Lightweight construction is one way to increase the efficiency of a vehicle. In some vehicles, lightweight construction can reduce the fuel consumption, increase the cargo capacity and reduce the environmental footprint. LÄS MER