1 / 6

Tutorial 2 MECH 101

Tutorial 2 MECH 101. Liang Tengfei tfliang@ust.hk Office phone : 2358-8811 Mobile : 6497-0191 Office hour : 14:00-15:00 Fri. General Equilibrium Problems. Equilibrium Conditions :. 2D:. 3D:. Today we will focus on: How to select the free body? How to draw the free body diagram?

mauli
Download Presentation

Tutorial 2 MECH 101

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Tutorial 2 MECH 101 Liang Tengfei tfliang@ust.hk Office phone : 2358-8811 Mobile : 6497-0191 Office hour : 14:00-15:00 Fri

  2. General Equilibrium Problems Equilibrium Conditions: 2D: 3D: Today we will focus on: How to select the free body? How to draw the free body diagram? How to build up equations?

  3. Example 1 Determine the reactions at point A and B • Isolate the free body & • use reactions to replace the connections. • Set up equations (resolve, sum) A

  4. Example 2 • Draw Free Body Diagram • (access: # unknow=# equation) Answer: Ay=183N Ex=0, Ey=417N, ME=-500N.m

  5. Example 3 The wall crane supports a load of 3.5KN. Determine the horizontal and vertical components of the reaction at pins A and D. Also, what is the force in the cable at the winch W? The jib ABC has a weight of 500N and member BD has a weight of 200N. Each member is uniform and has a center of gravity at its center. C E Answer: pulley E: T=1.75KN Member ABC :Ay=35KN Ax=9.966KN Member DB : Dx=9.116KN Dy=9.216KN 3.5KN

  6. Extra question If A and D are not in the same vertical line, how can we solve this problem?

More Related