Essays about: "icke-linjära vibrationer"

Found 5 essays containing the words icke-linjära vibrationer.

1. 1. Finite Element Analysis of Stresses in the MIST CubeSat due to Dynamic Loads During Launch

   University essay from KTH/Lättkonstruktioner

   Author : Carl Järmyr Eriksson; [2021]
   Keywords : Satellite; CubeSat; Nanosatellite; Dynamic Loads; Launch Loads; Finite Element Analysis; FEA; Quasi-static Acceleration; Modal Analysis; Random Vibration; Shock Loads; satellit; CubeSat; nanosatellit; dynamiska laster; uppskjutningslaster; finita elementmetoden; FEM; kvasistatisk acceleration; modalanalys; stokastiska vibrationer; chocklaster;

   Abstract : A finite element model of the CubeSat MIST was created, in order to assess the stresses that occur in the satellite in response to loads during its launch. Due to size limits of thesoftware used, simplifications had to be made to the geometry of the model. READ MORE

3. 2. Design of Eccentric Double Amplitude Vibration Drum Roller Shaft with Improved Mass Moment of Inertia : Product Development of Compaction Equipment

   University essay from Blekinge Tekniska Högskola/Institutionen för maskinteknik

   Author : Marika Blad; Alexander Tynnerstål Balog; [2020]
   Keywords : Eccentricity; mass moment of inertia; double amplitude feature; vibration; Excentricitet; masströghetsmoment; dubbelamplitud; vibration;

   Abstract : Road construction is important to make transports safe and sustainable. To compact asphalt an amount of energy needs to be conducted into the material either by static pressure or dynamic vibrations. An asphalt-roller compact the material and increases its load-bearing capacity. READ MORE

4. 3. Finite Element Analysis of the Dynamic Effect of Soil-Structure Interaction of Portal Frame Bridges - A Parametric Study

   University essay from KTH/Bro- och stålbyggnad

   Author : Turgay Dagdelen; Shaho Ruhani; [2018]
   Keywords : Soil-Structure Interaction; Railway Bridge; Portal Frame Bridge; Dynamic Analysis; Parametric Study; Nonlinear Analysis; Jord-struktur interaktion; Järnvägsbro; Plattrambro; Dynamisk analys; Parametrisk studie; Icke-linjär analys;

   Abstract : In Sweden, the railway sector currently faces the challenge of developing its first high-speed railway line, in response to the need to provide faster domestic and international transport alternatives. High-speed train passages on railway bridges can cause resonance in the bridge superstructure, which induce high accelerations that should not exceed the limits stipulated in the current design code. READ MORE

5. 4. Influence of the Non-linear Effects in the Design of Viscous Dampers for Bridge Cables

   University essay from KTH/Bro- och stålbyggnad

   Author : Yalda Acar; Pontus Jingstål; [2014]
   Keywords : Bridge cables; external viscous damper; half-power bandwidth method; loss factor; non-linear vibration; Brokabel; externa viskösa dämpare; half-power bandwidth metoden; förlustfaktor; icke-linjära vibrationer;

   Abstract : In this master thesis the performance of external viscous dampers attached to cables in cable-stayed bridges have been studied. A comparison has been performed between a linear and a non-linear cable model. The comparison was carried out for two bridge cables, one from the Dubrovnik Bridge and the other from the Normandie Bridge. READ MORE

6. 5. Non-linear vibrations of tensegrity structures

   University essay from KTH/Mekanik

   Author : Hooman Ahmadian Saieni; [2012]
   Keywords : ;

   Abstract : A study has been done on different methods to solve the linear and non-linear problems with single or multi degrees of freedom structures. To do that direct time integration methods are used to solve the dynamic equilibrium equations. It has been tried to perform general methods to apply in most structures. READ MORE