A truck and trailer must be able to accelerate at 0.3 m/s up an incline of 1 in 20.The truck's engine generates a torque of 900NM. It has a moment of inertia of30kg.m?. The efficiency of the truck's transmission is 83%. The mass of the truck is12 tons, and that of the trailer is 9tons. The tractive resistance for both the truck andthe trailer combined is 60N/ton.The truck has 12 wheels and the trailer has 8 wheels. The wheels on both vehiclesare identical. Each wheel has a diameter of 1.2m, a mass of 75kg and a radius ofgyration of 500mm.Determine two suitable overall gear ratios.

Answered: Image /qna-images/answer/d1f474c8-f5c0-486d-899a-67d7ef1bb05e.jpg

Answered: The truck's engine generates a torque…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

The torque of the screw jack is 100 N-m and its speed is 30 rpm. Evaluate power of the device
A 5 hp motor with a speed of 900 rpm is used to drive an industrial fan with a velocity of 5.72m/s. The center distance between the sprockets is 1.5 times the diameter of driven sprocket andis equal to 630 mm. Determine the length of chain in pitches. Use RC 40 chain and service factorof 1.3.
A motor vehicle of mass 1000 kg has road wheels of 600 mm rolling diameter. The total moment ofinertia of all four road wheels together with the half shafts is 10 kgm2, while that of the engine andclutch is 1 kg-m2. The engine torque is 150 N-m, the transmission efficiency is 90 per cent and thetractive resistance is constant at 500 N. Determine 1. Gear ratio between the engine and the roadwheels to give maximum acceleration on an upgrade of 1 in 20, and 2. The value of this maximumacceleration.
A brake test is carried out with a balance and a direct current motor. The purpose of this experiment is to calculate the torque on the motor shaft. The following values were obtained in the experiment. U=220 volts., I=107 amps, n = 1200 rpm. The length from the axis of the motor shaft to the point where the brake lever presses on the scale is L=80 cm. and the weight read on the balance G = 20 Kg. is Accordingly, calculate the following values: a) the shaft power taken from the shaft of the motor, b) the electrical power drawn by the motor from the mains c) motor total losses and motor efficiency Calculate
A truck and trailer must be able to accelerate at 0.3 m/s2 up an incline of 1 in 20. The truck’s engine generates a torque of 900Nm. It has a moment of inertia of 30kg.m2 . The efficiency of the truck’s transmission is 83%. The mass of the truck is 12 tons, and that of the trailer is 9tons. The tractive resistance for both the truck and the trailer combined is 60N/ton. The truck has 12 wheels and the trailer has 8 wheels. The wheels on both vehicles are identical. Each wheel has a diameter of 1.2m, a mass of 75kg and a radius of gyration of 500mm. Determine two suitable overall gear ratios.
.A steam engine develops power at mean torque of 18,000 N-m and velocity of 9 m/s. The mean diameter of the flywheel rim is 1.3 meters. The coefficient of fluctuation of speed is 0.03 and the coefficient of fluctuation of energy is 0.21. Determine the thickness of the rim in mm if the width of the rim is twice of its thickness. Assume density of rim material as 7250 kg/m3.
A 500 pound weight is attached to a cable that is being lifted by a 10 inch diameter drum. The 48V DC motor selected has a no-load angular velocity of 800 RPM and a stall torque of 500 inch-pounds. A gearbox has been designed to spin the drum as quickly as possible. Assume that there are no friction losses in this system. Determine the maximum mechanical power that the motor can produce in watts. The gearbox output torqueis 100 in lbs.
A selfpropelled truck of total mass 25 tonnes and wheel diameter 750 mm runs on a track forwhich the resistance is 180 N per tonne. The engine develops 60 kW at its maximum speed of 2400r.p.m. and drives the axle through a gear box. Determine : 1. the time to reach full speed from reston the level if the gear reduction ratio is 10 to 1 Assume the engine torque to be constant and agearing efficiency of 94 per cent, and 2. the gear ratio required to give an acceleration of 0.15 m/s2on an up gradient of 1 in 70 assuming a gearing efficiency of 90 per cent.
In a belt–pulley wheel system, the effective tension in the belt is 500 N and the diameter of the driver wheel is 200 mm. If the power output from the driving motor is 5 kW, the driver pulley wheel turns at: 50 rad/s 2500 rad/s 100 rad/s 0.1 rad/s
An electric motor drives a compressor by use of V-belt. The pulley diameter of the compressor shaft is 1.2 meter while the pulley diameter of the motor shaft is 1 meter. The belt speed runs at 30 m/s. The center distance between pulleys is 1.75 m. The groove angle of the pulleys is 35%. Determine the power generated in kW if the tension at the tight side of the belt is 670.5 N. The coefficient of friction between the belt and the pulley is 0.27.
The turning-moment diagram for an engine consists of two isosceles triangles each with a height equivalent to a torque of 16kNm. The bases of the triangles lie between ? = 0 ? and ? = 180? , and ? = 180? and ? = 360? Sketch the turning-moment diagram and add the mean torque line. If the engine is to rotate with a mean speed of 130 rpm, calculate the following: the power developed the mass of the flywheel having a radius of gyration 1.1m to restrict the fluctuation of speed to +1.5% of the mean speed. Demonstrate which would be most effective to reduce the fluctuation of speed, a change in diameter of or a change in mass of the flywheel.
Q4/ Answer the following question Determine the engine speed if reading of a dynamometer that is connected to a V6 engine is 130kW. The engine is square and its crank offset is 7.2 cm. The pressure inside one cylinder is 1100 kPa. The mechanical efficiency of this engine is 85%.

SEE MORE QUESTIONS

Recommended textbooks for you

Elements Of Electromagnetics

Mechanical Engineering

ISBN:

9780190698614

Author:

Sadiku, Matthew N. O.

Publisher:

Oxford University Press

Mechanics of Materials (10th Edition)

Mechanical Engineering

ISBN:

9780134319650

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Thermodynamics: An Engineering Approach

Mechanical Engineering

ISBN:

9781259822674

Author:

Yunus A. Cengel Dr., Michael A. Boles

Publisher:

McGraw-Hill Education

Elements Of Electromagnetics

Mechanical Engineering

ISBN:

9780190698614

Author:

Sadiku, Matthew N. O.

Publisher:

Oxford University Press

Mechanics of Materials (10th Edition)

Mechanical Engineering

ISBN:

9780134319650

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Thermodynamics: An Engineering Approach

Mechanical Engineering

ISBN:

9781259822674

Author:

Yunus A. Cengel Dr., Michael A. Boles

Publisher:

McGraw-Hill Education

Control Systems Engineering

Mechanical Engineering

ISBN:

9781118170519

Author:

Norman S. Nise

Publisher:

WILEY

Mechanics of Materials (MindTap Course List)

Mechanical Engineering

ISBN:

9781337093347

Author:

Barry J. Goodno, James M. Gere

Publisher:

Cengage Learning

Engineering Mechanics: Statics

Mechanical Engineering

ISBN:

9781118807330

Author:

James L. Meriam, L. G. Kraige, J. N. Bolton

Publisher:

WILEY

SEE MORE TEXTBOOKS

The truck's engine generates a torque of 900 30kg.m². The efficiency of the truck's transmiss 12 tons, and that of the trailer is 9tons. The trac he trailer combined is 60N/ton. The truck has 12 wheels and the trailer has 8 v are identical. Each wheel has a diameter of 1.2