MECHANISM -1 : 1,2,3,4,5& 6 and also MECHANISM-2 : 1,2.3,4,5 asked.
- Prepare Report Of The Following Information Mechanism 1 1 2 3 4 5 6 And Also Mechanism 2 1 2 3 4 5 Asked The Pr 1 (30.04 KiB) Viewed 18 times
The problem we will examine todav is a mechanism
which opens a 30 kg ventilation door (OAP)
using the expansion and contraction of a hydraulic
piston (DE).
- Prepare Report Of The Following Information Mechanism 1 1 2 3 4 5 6 And Also Mechanism 2 1 2 3 4 5 Asked The Pr 2 (17.79 KiB) Viewed 18 times
Mechanism 1 -
->Visualize the mechanism in the closed position, the maximum open position, and an intermediate position.
->Sketch a Free Body Diagram for the entire mechanism in the intermediate position (including door, linkages, and cylinder)
-Disassemble the mechanism and draw a Free Body Diagram for each individual part in the intermediate position. Lookout for 2 force members which may simplify your
analysis
-›Produce geometric and equilibrium relationships torelate the force in cylinder DE to the angle of the door,
-> Produce a plot showing the angle A on the x-axis and the cylinder force Fpe on the y-axis.
MECHANISM-2
Visualize the mechanism at @min = 0°, max = 25°, and an intermediate position.
-Disassemble the mechanism and draw a free body diagram for member AC in the
intermediate position. Hydraulic cylinder BC is a 2-force member.
-> Produce geometric and equilibrium relationships to relate the force in cylinder BC and the resultant pin force at A (RA) to the angle of the bridge.
The analysis will be similar to that performed in the
previous section of this lab.
->Verify the accuracy of your spreadsheet by analysing the bridge by hand at angle
A = 15.
->Produce a plot showing the full range of angle on the x-axis and cylinder force Fac/RA on the y- axis.
Prepare a brief report with the following information. Mechanism 1 - Guided Analysis 1. FBD of mechanism in the intermediate position 2. List of geometric and equilbrium formulas used for the analysis 3. Screenshot of your spreadsheet 4. Plots of a. vs. FDE b. O vs. R. and RC Mechanism 2 - Independent Analysis 1. FBD of mechanism in the intermediate position 2. Derivation and list of the geometric and equilibrium equations used for the analysis. SHOW YOUR CALCULATIONS!! They do not have to be typed up, but they should be neat. 3. Screenshot of your spreadsheet 4. Hand calculation of member BC and pin forces at A for the bridge at an angle 0 = 15° 5. Plot of O vs. Fac and RA
275 525 P B 300 Ꭰ 100 350 400