Search for dissertations about: "Gunnar Tibert"

Showing result 1 - 5 of 7 swedish dissertations containing the words Gunnar Tibert.

  2. 1. Numerical analyses of cable roof structures

    Author : Gunnar Tibert; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cable roof structures; loads; form-finding; force density method; finite cable elements; static analysis; the Scandinavium Arena; Construction engineering; Konstruktionsteknik;

    Abstract : .... READ MORE

  4. 2. Deployable Tensegrity Structures for Space Applications

    Author : Gunnar Tibert; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; deployable structures; tensegrity; form-finding; cable net; analysis; design; spacecraft; mast; reflector antenna; Engineering mechanics; Teknisk mekanik;

    Abstract : .... READ MORE

  5. 3. Stiffness and vibration properties of slender tensegrity structures

    Author : Seif Dalil Safaei; Gunnar Tibert; René Motro; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Tensegrity booms; Tensegrity grids; Tensegrity power lines; Finite element analysis; Genetic algorithm; Flexibility analysis; Form-finding; Pre-stress design; Optimization;

    Abstract : The stiffness and frequency properties of tensegrity structures are functions of the pre-stress, topology, configuration, and axial stiffness of the elements. The tensegrity structures considered are tensegrity booms, tensegrity grids, and tensegrity power lines.A study has been carried out on the pre-stress design. READ MORE

  6. 4. Deployment Control of Spinning Space Webs and Membranes

    Author : Mattias Gärdsback; Anders Eriksson; Gunnar Tibert; Thomas W. Murphey; KTH; []
    Keywords : 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;

    Abstract : 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. READ MORE

  7. 5. Deployment Simulations of a Composite Boom for Small Satellites

    Author : Pau Mallol Parera; Gunnar Tibert; Keith Seffen; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; small satellites; deployable structures; high packaging ratio; composites; bi-stable; gravity off-loading system; små satelliter; utfällbara strukturer; kompakt ihoppackning; kompositer; bistabil; tyngdkraftskompenserande system;

    Abstract : The use of small satellites is rapidly growing, especially satellites with masses between 1 and 10 kg and few litres of volume. The main reasons are due to the low development time and cost. Electronics miniaturization and high density integration is enabling the small satellites class to perform more and better tasks and at a lower cost. READ MORE