Essays about: "Dynamic beam equation"

Found 5 essays containing the words Dynamic beam equation.

1. 1. Numerical simulations of the Dynamic Beam Equation in discontinuous media

   University essay from Uppsala universitet/Avdelningen för beräkningsvetenskap

   Author : Niklas Wik; David Niemelä; Valter Wagner Zethrin; [2020]
   Keywords : Dynamic beam equation; DBE; SAT; projection; SBP;

   Abstract : The study examines the Projection method and the simultaneousapproximation-term (SAT) method as boundary treatment for the dynamic beam equation using summation-by-parts (SBP) operators for handling the inner domain. The methods are examined for both the homogeneous constant coefficient case, and the inhomogeneous piecewise constant coefficient case with a coupled interface. READ MORE

3. 2. Evaluation of 3D dynamic effects induced by high-speed trains on double-track slab bridges

   University essay from KTH/Bro- och stålbyggnad

   Author : Jossian Thomas; Assís Arañó Barenys; [2016]
   Keywords : Dynamics; Frequency analysis; 3D model; Torsional modes of vibration;

   Abstract : In addition to a static design, a dynamic analysis has to be performed for bridges for which the maximum permissible train speed exceeds 200 km/h. This analysis requires a lot of computing time, for this reason Svedholm and Andersson (2016) have developed a simple tool describing the relationship between the first eigenfrequency of the bridge, the span length and the minimum mass to fulfill the regulation specified in EN-1990. READ MORE

4. 3. Hydroelasticity of a large floating windturbine platform

   University essay from KTH/Marina system

   Author : Tobias Finn; [2014]
   Keywords : ;

   Abstract : This thesis dene a limit for when hydroelasticity is necessary to include in an analysis of a large oating semi-submersible wind turbine platform in waves. The thesis also includes a description of how to include hydroelasticity in the design of such a structure. READ MORE

5. 4. Numerical simulation of the Dynamic Beam Equation using the SBP-SAT method

   University essay from Uppsala universitet/Institutionen för informationsteknologi

   Author : Vidar Stiernström; [2014]
   Keywords : Dynamic beam equation; finite difference methods; stability; boundary treatment;

   Abstract : A stable boundary treatment of the dynamic beam equation (DBE) with two different sets of boundary conditions has been conducted using the summation-by-parts-simultaneous-approximation-term (SBP-SAT) method. As the DBE involves a fourth derivative in space the numerical boundary treatment is highly non-trivial. READ MORE

6. 5. Modelling and Simulation of a bridge interacting with a moving vehicle system

   University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Author : Rui Duan; Jingrui Yang; [2013]
   Keywords : Vehicles-bridge coupling vibration; Dynamic system; D’Alambert principle; Euler–Bernoulli beam theory; Mode superposition method; Newmark-beta method;

   Abstract : The problem about the vibration of vehicles and bridge is mainly the problem of coupling vibration between the vehicles dynamic system and bridge dynamic system. The vehicles running on the bridge at some speed can make the bridge vibrate, at the same time the vibration of the bridge will also affect the vibration of the vehicles. READ MORE