3. Figure 3 shows a brake pedal assembly from a car. Under the action of an applied foot force, thepedal lever acts against the fixed pivot and transfers load to the brake cylinder via an actuationrod. The pedal lever is of hollow section, three-sided form with section dimensions as shown inthe figure (Section A-A).Via consideration of the pedal lever as a free body, calculate the reactions acting at thefixed pivot and the 10 mm dia. pin. (hint-take the pin and the pivot as supports)Draw the bending moment diagram for the pedal lever and determine the maximumtensile and compressive stresses arising if a force of 1.3 kN is applied at the foot pedal asshown in Figure 3. (hint -exclude the areas of the holes)[Ans ot = 134 N/mm² oc = 215 N/mm*]i.ii.Fixed pivot10 mm dia. pin30 mm5 mm10 mm3 mmActuates brakethroughoutcylinder >15 mm1.3 kNSection A-AFloor panFoot pedal forcePedalleverFigure 3 Brake pedal assembly from a car100200 mmmm

i) Free body diagram of the pedal lever and reaction forces The free body diagram of the pedal lever…

Figure 3 shows a brake pedal assembly from a car. Under the action of an applied foot force, the pedal lever acts against the fixed pivot and transfers load to the brake cylinder via an actuation rod. The pedal lever is of hollow section, three-sided form with section dimensions as shown in the figure (Section A-A). i Via consideration of the pedal lever as a free body, calculate the reactions acting at the fixed pivot and the 10 mm dia. pin. (hint-take the pin and the pivot as supports) ii. Draw the bending moment diagram for the pedal lever and determine the maximum tensile and compressive stresses arising if a force of 1.3 kN is applied at the foot pedal as shown in Figure 3. (hint exclude the areas of the holes) [Ans o = 134 N/mm² oc = 215 N/mm²]

Figure 3 shows a brake pedal assembly from a car. Under the action of an applied foot force, the pedal lever acts against the fixed pivot and transfers load to the brake cylinder via an actuation rod. The pedal lever is of hollow section, three-sided form with section dimensions as shown in the figure (Section A-A). i Via consideration of the pedal lever as a free body, calculate the reactions acting at the fixed pivot and the 10 mm dia. pin. (hint-take the pin and the pivot as supports) ii. Draw the bending moment diagram for the pedal lever and determine the maximum tensile and compressive stresses arising if a force of 1.3 kN is applied at the foot pedal as shown in Figure 3. (hint exclude the areas of the holes) [Ans o = 134 N/mm² oc = 215 N/mm²]

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

3. Figure 3 shows a brake pedal assembly from a car. Under the action of an applied foot force, the
pedal lever acts against the fixed pivot and transfers load to the brake cylinder via an actuation
rod. The pedal lever is of hollow section, three-sided form with section dimensions as shown in
the figure (Section A-A).
Via consideration of the pedal lever as a free body, calculate the reactions acting at the
fixed pivot and the 10 mm dia. pin. (hint-take the pin and the pivot as supports)
Draw the bending moment diagram for the pedal lever and determine the maximum
tensile and compressive stresses arising if a force of 1.3 kN is applied at the foot pedal as
shown in Figure 3. (hint -exclude the areas of the holes)
[Ans ot = 134 N/mm² oc = 215 N/mm*]
i.
ii.
Fixed pivot
10 mm dia. pin
30 mm
5 mm
10 mm
3 mm
Actuates brake
throughout
cylinder >
15 mm
1.3 kN
Section A-A
Floor pan
Foot pedal force
Pedal
lever
Figure 3 Brake pedal assembly from a car
100
200 mm
mm

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