quiz218085f05

quiz218085f05 - MIT OpenCourseWare http:/ocw.mit.edu 18.085...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
MIT OpenCourseWare http://ocw.mit.edu 18.085 Computational Science and Engineering I Fall 2008 For information about citing these materials or our Terms of Use, visit: http://ocw.mit.edu/terms .
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
18.085 Quiz 2 November 14, 2005 Professor Strang Your PRINTED name is: Grading 1 2 3 1) (34 pts.) A point load at rc = i hangs at the same point where c(rc) changes fro111 c = 1 (for 0 < rc < i) to c = 2 (for i < rc < 1). Both ends are FIXED. (a) Solve for u(rc) and w(rc) = c(rc) ul(rc): (b) Draw the graphs of u(rc) and w(rc) (c) Divide the hanging bar into irltervals of lerlgtl~ h = (then c(rc) changes fro111 1 to 2 at rc = 2h). There are unknowrls U = (ul, . . . ,US)at the rneshpoints. Write down a rrlatrix approximation KU = F to the equation above. Take differences of differences (each difference over an interval of length h).
Background image of page 2
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2) (33 pts.) This truss doesn't look safe to me. Those angles are 45". The matrix A will be 6 by 8 when the displacernents are fixed to zero at the bottorn. (a) How rrlany independent solutions to
Background image of page 4
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 6
Background image of page 7
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 7

quiz218085f05 - MIT OpenCourseWare http:/ocw.mit.edu 18.085...

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online