n the following information, determine the steer angle required to c ly state conditions around a corner of radius 16. meter Value Unit eelbase 2.67 m ersteer gradient rad/m/s2 vard speed 12 m/s
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- A flywheel absorbs 2500 ft-lb of energy at a coefficient of fluctuation of 0.10. The mean diameter of the flywheel is 72 inches. The weight of the arms and hub is 12 % of the rim weight. The mean rim speed is 80 fps. Consider the specific weight of the flywheel as γ = 0.26 lb/in3. A. Find the mean rpm of the rim. B. Determine the weight of the rim. C. What is the cross sectional area of the rim?The turning moment diagram for a petrol engine is drawn to the following scales: turning moment 1 mm to 2·5 Nm; crank angle, 1 mm to 1°. The fluctuations of energy between the crank positions for minimum and maximum speeds corresponds to an area of 600 mm² of the turning moment diagram. The flywheel is made from cast iron, of density 7·2 tonnes/m3. Determine: (a) The greatest fluctuation of energy (b) The mass of the flywheel required to prevent the a fluctuation of speed greater than ± 0·5% from the mean speed of 1600 rev/min if the radius of gyration is 120 mm. (c) The dimensions of the flywheel (diameter and thickness) (d) Describe the possible consequences to the system if the flywheel was not used to limit the fluctuation of speed.A load is raised 11 ft by the gears and wheel system below. Gear A is initially rotating at rest and accelerates uniformly to omega = 24 rpm in t= 10 sec and maintain then maintain this constant 24 rpm speed. The dimensions are rA= 1 in, rB= 9 in and rC=16 in. 2) After 10 sec, find the distance s2 in feet and in NC es needed to reach the 11 ft, find thetaC2(t), alphaA2, alphaB2 in rad/s^2, omegaA2(t), omegaB2(t) in rad/s, thetaA2(t), in rad and the distance s2 in ft that should be made to get to the 11 ft raising distance of the load. 3) Deduce the number of revolutions made by gear A and how long it will take, to raise the load up to 11 ft.
- Find out the a.) Acceleration, b.) Speed at the 3.0s mark, and c.) Displacement at the 3.0s mark. Given the following initial conditions initial velocity=0 mass=5kg, static friction coefficient=0.4 kinetic friction coefficient=0.2, and angle of inclination =30degreeA load is raised 11 ft by the gears and wheel system below. Gear A is initially rotating at rest and accelerates uniformly to omega = 24 rpm in t= 10 sec and maintain then maintain this constant 24 rpm speed. The dimensions are rA= 1 in, rB= 9 in and rC=16 in. 1) From 0 to 10 sec, find alphaA1, alphaC1 in rad/s^2, omegaA1(t), omegaC1(t) in rad/s, thetaA1(t), thetaB1(t) and thetaC1(t) in rad, and the distance made by the load s1 in inches and in feet made by the load during this time. 2) After 10 sec, find the distance s2 in feet and in NC es needed to reach the 11 ft, find thetaC2(t), alphaA2, alphaB2 in rad/s^2, omegaA2(t), omegaB2(t) in rad/s, thetaA2(t), in rad and the distance s2 in ft that should be made to get to the 11 ft raising distance of the load. 3) Deduce the number of revolutions made by gear A and how long it will take, to raise the load up to 11 ft. In the box below, give the time it takes to raise the load in seconds, with one decimal.A load is raised 11 ft by the gears and wheel system below. Gear A is initially rotating at rest and accelerates uniformly to omega = 24 rpm in t= 10 sec and maintain then maintain this constant 24 rpm speed. The dimensions are rA= 1 in, rB= 9 in and rC=16 in. 1) From 0 to 10 sec, find alphaA1, alphaC1 in rad/s^2, omegaA1(t), omegaC1(t) in rad/s, thetaA1(t), thetaB1(t) and thetaC1(t) in rad, and the distance made by the load s1 in inches and in feet made by the load during this time.
- In a chain drive, the speed of the chain is not uniform and varies from a minimum value to a maximum value for every rotation or cycle of tooth engagement. If the ratio of the maximum value of the chain speed to its minimum value is 1.017322, determine the angle of articulation in degrees.The turning-moment diagram for one cycle of a multi-cylinder engine shows fluctuations in energy above and below the mean-torque line as follows: –62·5 J, +105·7 J, –27·3 J, +63·3 J, –59·1 J, +25·2 J, –99·3 J and +54 J. Sketch the diagram and use it to find the mass of the flywheel, radius of gyration 220 mm, needed to keep the engine speed within the range 898 to 902 rev/minData has been gathered from a lifting system used to transport engine parts. The system consists of a drum and cable. The following data was obtained when the drum lowers the load (assume constant acceleration). Drum diameter = 0.8m Mass of load = 3kg Initial velocitv = 0 m/s Time to descend = A secs 2. ( Distance travelled = 0.25m You have been asked to use this information to determine with 4 s.f. accuracy: Drum Cable a) The final linear velocity of the load b) The linear acceleration of the load Load c) The final angular velocity of the drum d) The angular acceleration of the drum e) The tension force in the cable f) The torque applied to the drum In determining the above quantities, you should clearly state the formulae used and apply dimensional analysis techniques to show that all values/units used are homogeneous.
- The area of an indicator diagram taken off a four-cylinder, single-acting, four-stroke, internal combustion engine when running at 5.5 rev/s is 390 mm2, the length is 70mm and the scale of the indicator spring is 1mm = 1.6 bar. The diameter of the cylinder is 150mm and the stroke is 200mm. Calculate the indicated power of the engine assuming all cylinders develop equal power.Data has been gathered from a lifting system used to transport engine parts. The system consists of a drum and cable. The following data was obtained when the drum lowers the load (assume constant acceleration). Drum diameter = 0.8m Mass of load = 3kg Initial velocity = 0 m/s Time to descend = 0.5 secs Distance travelled = 0.25m You have been asked to use this information to determine: The final linear velocity of the load The linear acceleration of the load The final angular velocity of the drum The angular acceleration of the drum The tension force in the cable The torque applied to the drum In determining the above quantities, you should clearly state the formulae used and apply dimensional analysis techniques to show that all values/units used are homogeneous. From the formulae used (above) you should apply dimensional analysis techniques to develop two equations for power (in terms of linear velocity and angular velocity).(Q1) flat faced reciprocating follower has the following motion:a) The follower moves out for 80° of cam rotation with uniformacceleration and retardation, the acceleration being twice theretardation.b) The follower dwells for the next 80° of cam rotation.c) It moves in for the next 120° of cam rotation with uniformacceleration and retardation, the retardation being twice theacceleration.d) The follower dwells for the remaining period.The base circle diameter of the cam is 60 mm and the stroke of thefollower is 20 mm. The line of movement of the follower passes throughthe cam centre.Draw the displacement diagram and the profile of the cam very neatlyshowing all constructional details.