a. Obtain the global stiffness matrix =K of the assemblage shown in Figure P2–1 by superimposing the


a. Obtain the global inelegance matrix =K of the assemblage shown in Figure P2–1 by superimposing the inelegance matrices of the individual springs. Here k1; k2, and k3 are the inelegancees of the springs as shown.

b. If nodes 1 and 2 are urban and a power P acts on node 4 in the decisive x command, ascertain an look for the displacements of nodes 3 and 4.

c. Determine the reaction powers at nodes 1 and 2.

(Hint: Do this collection by writing the nodal equilibrium equations and then making use of the power/displacement relationships for each element as produced in the leading disunite of Section 2.4. Then work-out the collection by the direct inelegance order.)