lab report 2
Experiment AM1.2—Centrifugal Force
Student name JunJie Liu Student ID 1512042 Experiment Date 11 Feb 2015 Lab group Mech 7
Introduction
In this lab report we show the basic methods of measuring centrifugal force using two counter balanced bell-cranks spin on a turntable (shows in figure 1) and able to calculate the centrifugal force with given conditions shows in figure 1.
*Figure 1 (University of Birmingham. Experiments and Statistics, 2014.)
Objectives
1. To calculate bending moment at the “cut” using displayed force (figure 1) times the perpendicular distance between the load cell and the “cut” and see its agreement with the theory.
Bending moment =Applied Load X Distance (eq. 1)
2. To examine the relationship of bending moment, loading and cut positions for given set of conditions.
3. To examine whether the bending moment at the ‘cut’ equal to the algebraic sum of moment of force acing to the left or right of the ‘cut’.
Observations and Results
The experiment was done in two parts and the results for individual part are showed below separately.
Part 1
The Experimental Bending moment was obtained by multiply the displayed force and perpendicular distance between load cell and the “cut” (moment arm) and the perpendicular distance between load cell and the “cut” is 0.125m throughout the experiment.
The Load was obtained by multiply Mass in Kg and gravity which is 9.81.
The Theoretical Bending moment was obtained by substituting calculated loads in table 1 into equation 2 where the respected quantities can be seen in figure 2.
The Percentage Error was calculated by using the difference between Experimental value and Theoretical value divide by Theoretical and times a hundred.
Part 2
Figure 6: Graph of Bending Moment for Figure 5
Discussion
As the experiment was done by two parts, discussion is
Student name JunJie Liu Student ID 1512042 Experiment Date 11 Feb 2015 Lab group Mech 7
Introduction
In this lab report we show the basic methods of measuring centrifugal force using two counter balanced bell-cranks spin on a turntable (shows in figure 1) and able to calculate the centrifugal force with given conditions shows in figure 1.
*Figure 1 (University of Birmingham. Experiments and Statistics, 2014.)
Objectives
1. To calculate bending moment at the “cut” using displayed force (figure 1) times the perpendicular distance between the load cell and the “cut” and see its agreement with the theory.
Bending moment =Applied Load X Distance (eq. 1)
2. To examine the relationship of bending moment, loading and cut positions for given set of conditions.
3. To examine whether the bending moment at the ‘cut’ equal to the algebraic sum of moment of force acing to the left or right of the ‘cut’.
Observations and Results
The experiment was done in two parts and the results for individual part are showed below separately.
Part 1
The Experimental Bending moment was obtained by multiply the displayed force and perpendicular distance between load cell and the “cut” (moment arm) and the perpendicular distance between load cell and the “cut” is 0.125m throughout the experiment.
The Load was obtained by multiply Mass in Kg and gravity which is 9.81.
The Theoretical Bending moment was obtained by substituting calculated loads in table 1 into equation 2 where the respected quantities can be seen in figure 2.
The Percentage Error was calculated by using the difference between Experimental value and Theoretical value divide by Theoretical and times a hundred.
Part 2
Figure 6: Graph of Bending Moment for Figure 5
Discussion
As the experiment was done by two parts, discussion is