Consider the spring-rigid body system described in problem 3. What force F 2 should be applied on body 2 in order to keep it from moving? How will this affect the support reactions? Hint: Impose the boundary condition u 2 = 0 in the finite element model and solve for displacements u 3 and u 4 . Then, the force F 2 will be the reaction at node 2.
(PSD) A precision milling machine, weighing 4500 N, is supported on a rubber mount. The force-deflection relationship of the rubber mount is given by F = 270x + 0.25(x^3). Determine the equivalent linearized spring constant of the rubber mount at its static equilibrium position.
Dynamics of rigid bodies
PROBLEMFor the plane truss given below, using the Matrix Stiffness Analysis method, determine;• Determine displacements of the joints• Determine the forces in the truss members• Determine the support reactionsNote that the whole system has 4 nodes and hence 8 degrees of freedom. These degrees of freedomsare shown (in their positive directions) on the right hand side of the problem picture (1 to 8). So, thesystem stiffness matrix, K, will be 8x8 in size.Force and displacement units should be consistent (mm’s and N’s for example)
Chapter 1 Solutions
Introduction To Finite Element Analysis And Design
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