2. A double long internal long-shoe brake as illustrated in Figure Q2 having the drum radius of 170 mm which rotates clo

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2 A Double Long Internal Long Shoe Brake As Illustrated In Figure Q2 Having The Drum Radius Of 170 Mm Which Rotates Clo 1 (65.63 KiB) Viewed 16 times

2. A double long internal long-shoe brake as illustrated in Figure Q2 having the drum radius of 170 mm which rotates clockwise and the shoe with a dimension R=140 mm. The shoe width is 40 mm, and the coefficient of friction and the maximum pressure of lining material is 0.28 and 860 kPa, respectively. 30° 30° 90° 90° Pin Pin 30° -30° Figure Q2 (a) Draw a free body diagram for both shoes and show the normal and friction force vectors applied to both shoes. Determine the leading shoe (self-energising) and trailing shoes (self-de-energising) in the diagram. [2 marks] (b) b Determine the actuating force. [6 marks] (c) Calculate the total braking capacity. [7 marks]