Rods AC and BC support the 775 kg A 40° 1 40° C в If each rod is made of a material for which the average normal stress can not exceed 170 MPa, determine the minimum required diameter of each rod. Express your answer to three significant figures and include the appropriate units.
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- Find the brake power of the engine running at 755 rpm. The length of lever from centre of pulley is 1,43 m. The weight in pan is 40 kg.a) An engine has a flywheel mass of 8-tonnes and a turning radius of 3 m. The energy fluctuation is 70 KN-m. The average speed of the engine is 160 rpm. Find the maximum speed value. b) A jet engine has a rotor with a weight of 500 N and this rotor rotates at 2400 rpm. Rotor It is suspended in the middle of the C and D bearings with a total distance of 600 mm between them and the center of gravity is rotated. 35 mm above its centre. By calculating the dynamic forces on the bearings, this system perform the balancing.Equilibrium of Concurrent Force System. The piston of a reciprocating engine exerts a force of 175 kN on the crosshead when the crank is 45° (angle B) past TDC. If the stroke of the piston is 800 mm and the length of the connecting rod is 1.80 m, find the guide force and the force in the connecting rod. Hint: 1=½ stroke; Angle o may be solved using Sine Law in AACO. K= Compressive Force in the connecting Rod E= Piston Effort 70 120 F, = Guide Force Fig. P-1 Fig. P-2 a Tools: EF cos0=0; F sin .=0. R = Ev)* + (E#): ; R 771 =- : tane = sin A sin B sin C
- A belt transmission system is shown as shown in the picture. Pulley A transmits torque 1,150 lb-in. to a pump through the shaft in C. Pull force belt on the under side 150 lb. If it is known the weight of the driving motor is 210 lb. and rotate clockwise, calculate the reaction force Focus on the O? 30 150 IbQuestion 1 In a reciprocating engine which has four cylinders in line, the reciprocating masses are each 0.5 kg per cylinder. The stroke is 120 mm, and the connecting rods are 450 mm long. The firing order of the engine is 1-4-2-3 and the cranks are set at 90° to each other. The cylinders are spaced 140 mm apart and the engine speed is 2000 rev/min. Find: 1.1. The maximum out-of-balance primary and secondary forces. 1.2. The maximum out-of-balance primary couples. Hint: (Take the centre of the engine as your reference)(image attached) 1. Find the member force in AB. 2. Find the member force in BC. 3. Find the member force in BD. 4. Find the member force in CD. 5. Find the absolute vertical displacement of joint C (in inches). Use principal of virtual work. 6. Does the vertical displacement of C move up or down?
- Q2/ A compound steam engine develops 250 kW at 80 r.p.m. The coefficient of fluctuation of energy as found from the turning moment diagram is to be 0.15 and the fluctuation of speed is energy as feed 1% of the mean speed. Find the weight of the flywheel required, if the radius of gyration is 1.5 m. TShow the correct FBD please. The answer must be TA=TB=20.4 lb, TC=27.2 lbPlease help. Written on paper not typed on computer or keyboard please. Need help on all questions. Please include all units, steps to the problem and information such as its direction or if it is in compression or tension. Thx.
- It’s a model of a arm flexing. Find the force of the bicepP5/ The wheel of metor Cycle and the engine parts have antoment of inertia 2-5 kg.m? and o 15 Kg.m² respectively The axis of rotation of the engine erank Shaft is parallel to that of the road wheels-If the gear ratio is 5:1 and the diameter o f the read whels is o.65 m, find the magnitude and direction of the gyroscopic Couple when the motor Cycle rounds a eurve of Bom radius at l6 m/s.An engine has three single-acting cylinders whose cranks are spaced at 120° to each other. The turn- ng moment diagram for each cylinder consists of a triangle having the following values: Angle 0° 60° 180° 180° – 360° Torque (N-m) 200 Find the mean torque and the moment of inertia of the flywheel to keep the speed within 180±3 r.p.m.