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]

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter4: Coplanar Equilibrium Analysis

Section: Chapter Questions

Problem 4.125P: The figure shows a three-pin arch. Determine the horizontal component of the pin reaction at A...

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