Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
For a particular car windscreen wiper mechanism, an electric motor is required that can provide 5 N m of torque at about 35 rpm. A small permanent magnet d.c. motor is suggested as being suitable for this purpose.
The manufacturer's data is as follows:
Stall torque: 0.15 N m
Stall current: 15 A
No-load speed: 6000 rpm
No-load current: 0.5 A
Supply voltage: 12 V
Show that this motor has the power to do the job, and determine an approximate gear ratio with which it should be used in order to supply the necessary combination of torque and speed.
Verified Expert
The report is a solution to problem for calculating the DC motor torque for an application. The solution consist in estimating the torque available. The torque available is very much higher than the requirement and hence is sufficient to run the wind screen wiper.
I liked your comments and found them suitable. Thanks for clarifications, this resolves my query. This is a case which can be solved in more than one ways. You have checked the case using the stalling torque and the corresponding speed of the motor. I checked with no load condition itself and proved that the motor is capable to supply the torque requirement of the wind wiper. Pls. recall the question is to prove that motor is fit to run to wiper. Also, it is reasonable to use the rpm of motor as 6000, rather than solving with stall torque. With Stall torque the output speed of the motor is zero. In any case the answer is correct too.
Package Design Brief: Assume you are the packaging engineer for a large consumer products company. In this company, the Packaging Design Briefs are initiated by the marketing group and forwarded to the Package Engineering group.
Define dynamic viscosity, Determine the centroid, Pressure due to the height of liquid, Advantage of changing the liquid, Calculate the total moment about the hinge of the seal gate.
DOF system and Find the differential equation describing the system
Write a paper on Boyle's law and describe Compression and Combustion stroke . Also explain Charles's law and illustrate SI engine and CI engine.
To Verify the law for parallelogram of forces, law for triangle of forces and law of polygon of forces. These laws are very useful to calculate unknown forces in very short time.
What is the discharge revised discharge pressure of the compressor.
The role of IFRS in both developing and developed capital markets.
Wind turbines are becoming more and more common as a method of energy production, wind turbines by their very nature are dynamic and are subject to and create their own internal and external kinematics and kinetics.
8 x product engineering and design review (week 2 – 12), ~3 pages per item which must contain a brief description of the product then delve into concepts such as materials selection, manufacturing methods, life cycle analysis, recyclability and overa..
Design of absorption column and the cooler. Process design of other units should be completed along with pipe sizes.
Determine maximum total bending moment (static plus dynamic) of the beam under steady-state conditions.
Determine the magnitude of the horizontal and vertical components of the force of the water on the gate.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd