Drum radius, 0.091 m rd Coefficient of friction of drum/brake shoe, 0.2-0.6 µd Brake component length, 0.194 m la Brake component length, 0.022 m lb Brake component length, 0.022 m lc Brake component length, 0.113 m ld Brake component length, 0.068 m le Brake component length, 0.112 m lf component length, 0.093 m lm Brake component length, 0.135 m lj Brake component length, 0.070 m lh Torque generated in the upward and downward directions are given in Equations (1) and (2), respectively. (1) (2) The torque required to hold a passenger car stationary on a road can be estimated based on the free body diagram as shown in Figure 4. Table 2 shows parameters of the vehicle. Resolving all forces along the road in the frictional force equation in direction as in Equation x’-direction, (3);
Drum radius, rd 0.091 m Coefficient of friction of drum/brake shoe, µd 0.2-0.6 Brake component length, la 0.194 m Brake component length, lb 0.022 m Brake component length, lc 0.022 m Brake component length, ld 0.113 m Brake component length, le 0.068 m Brake component length, lf 0.112 m component length, lm 0.093 m Brake component length, lj 0.135 m Brake component length, lh 0.070 m Torque generated in the upward and downward directions are given in Equations (1) and (2), respectively. (1) (2) The torque required to hold a passenger car stationary on a road can be estimated based on the free body diagram as shown in Figure 4. Table 2 shows parameters of the vehicle. Resolving all forces along the road in x’-direction, the frictional force equation in direction as in Equation (3);
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