Loose Leaf For Design Of Machinery (mcgraw-hill Series In Mechanical Engineering)
6th Edition
ISBN: 9781260431308
Author: Robert L. Norton
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 2, Problem 2.20P
The torque-speed curve for a 1/8 hp permanent magnet (PM) DC motor is shown in Figure P2-3. The rated speed for this fractional horsepower motor is 2500 rpm at a rated voltage of 130 V. Determine:
- The rated torque in oz-in (ounce-inches—the U.S. industry standard for fractional hp motors)
- The no-load speed
- Plot the power-torque curve and find the maximum power that the motor can deliver.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
2-14 The current in a 60 Hz single-phase motor
lags 36 degrees behind the voltage.
Calculate the time interval between the posi-
tive peaks of voltage and current.
What is the power output of a motor that provides a torque of 2,917 N*m while running at 2,641 rpm?
Provide your answer in kW and round to the nearest whole number.
From the 4-figure electric motor taken, 500Nm torque steps B and C by 200Nm and 300Nm is transmitted. to return to a bed They're giving permission. In this case a return relative to D Calculate (torsion additive).
Chapter 2 Solutions
Loose Leaf For Design Of Machinery (mcgraw-hill Series In Mechanical Engineering)
Ch. 2 - Find three (or other number as assigned) of the...Ch. 2 - How many DOF do you have in your wrist and hand...Ch. 2 - How many DOF do the following joints have? Your...Ch. 2 - How many DOF do the following have in their normal...Ch. 2 - Are the joints in Problem 2-3 force closed or form...Ch. 2 - Describe the motion of the following items as pure...Ch. 2 - Calculate the mobility of the linkages assigned...Ch. 2 - Identify the items in Figure P2-1 as mechanisms,...Ch. 2 - Use linkage transformation on the linkage of...Ch. 2 - Prob. 2.10P
Ch. 2 - Use number synthesis to find all the possible link...Ch. 2 - Prob. 2.12PCh. 2 - Use linkage transformation to create a 1-DOF...Ch. 2 - Use linkage transformation to create a 1-DOF...Ch. 2 - Calculate the Grashof condition of the fourbar...Ch. 2 - Prob. 2.16PCh. 2 - Describe the difference between a cam-follower...Ch. 2 - Examine an automobile hood hinge mechanism of the...Ch. 2 - Find an adjustable arm desk lamp of the type shown...Ch. 2 - The torque-speed curve for a 1/8 hp permanent...Ch. 2 - Find the mobility of the mechanisms in Figure...Ch. 2 - Find the Grashof condition and Barker...Ch. 2 - Find the rotatability of each loop of the...Ch. 2 - Find the mobility of the mechanisms in Figure...Ch. 2 - Find the mobility of the ice tongs in Figure P2-6:...Ch. 2 - Prob. 2.26PCh. 2 - Prob. 2.27PCh. 2 - Find the mobility of the corkscrew in Figure P2-9.Ch. 2 - Figure P2-10 shows Watts sun and planet drive that...Ch. 2 - Figure P2-11 shows a bicycle handbrake lever...Ch. 2 - Figure P2-12 shows a bicycle brake caliper...Ch. 2 - Find the mobility, the Grashof condition, and the...Ch. 2 - The approximate torque-speed curve and its...Ch. 2 - Prob. 2.34PCh. 2 - Prob. 2.35PCh. 2 - Sketch the equivalent linkage for the cam and...Ch. 2 - Describe the motion of the following rides,...Ch. 2 - For the mechanism in Figure P2-1 a, number the...Ch. 2 - Repeat Problem 2-38 for Figure P2-1b.Ch. 2 - Repeat Problem 2-38 for Figure P2-1c.Ch. 2 - Prob. 2.41PCh. 2 - Find the mobility, the Grashof condition, and the...Ch. 2 - Find the mobility, the Grashof condition, and the...Ch. 2 - Figure P2-20 shows a Rube Goldberg mechanism that...Ch. 2 - All the eightbar linkages in Figure 2-11 part 2...Ch. 2 - Prob. 2.46PCh. 2 - Prob. 2.47PCh. 2 - Find the mobility of the mechanism shown in Figure...Ch. 2 - Find the mobility of the mechanism shown in Figure...Ch. 2 - Find the mobility of the mechanism shown in Figure...Ch. 2 - Find the mobility of the mechanism shown in Figure...Ch. 2 - Prob. 2.52PCh. 2 - Prob. 2.53PCh. 2 - Repeat Problem 2-38 for Figure P2-1f.Ch. 2 - Repeat Problem 2-38 for Figure P2-1g.Ch. 2 - For the example linkage shown in Figure 2-4 find...Ch. 2 - For the linkage shown in Figure 2-5b find the...Ch. 2 - Prob. 2.58PCh. 2 - Figure P2-21b shows a mechanism. Find its mobility...Ch. 2 - Prob. 2.60PCh. 2 - Figure P2-21 d shows a log transporter. Draw a...Ch. 2 - Figure P2-21e shows a plow mechanism attached to a...Ch. 2 - Figure P2-22 shows a Hart inversor sixbar linkage....Ch. 2 - Figure P2-23 shows the top view of the partially...Ch. 2 - Figure P2-24a shows the seat and seat-back of a...Ch. 2 - Figure P2-24b shows the mechanism used to extend...Ch. 2 - Figure P2-24b shows the mechanism used to extend...Ch. 2 - Figure P2-25 shows a sixbar linkage. Is it a Watt...Ch. 2 - Use number synthesis o find all the possible link...Ch. 2 - Use number synthesis to find all the possible link...Ch. 2 - Prob. 2.71PCh. 2 - For the mechanism in Figure P2-26, number the...Ch. 2 - Figure P2-27 shows a schematic of an exercise...Ch. 2 - Calculate the mobility of the linkage in Figure...Ch. 2 - Calculate the Grashof condition of the fourbar...Ch. 2 - The drum brake mechanism in Figure P2-4g is a...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- Change the 10kN to 12kN for it to be stablearrow_forwardA motor drives four loads, two have rotational motion and two have translational motion. The momentof inertia of the motor is 1.2kg-m^2. The motor runs at a speed of 1000rpm. The table below shows thedetails of the four loads. Calculate the power developed by the motor. (Load ;Type of Motion; Speed; Inertia / Mass; Torque / Force) 1; Rotational; 200 rpm; 7 kg-m^2; 10 N-m 2; Rotational; 200 rpm; 5 kg-m^2; 6 N-m 3; Translational; 10 m/s; 10 kg; 20 N4; Translational; 10 m/s; 20 kg; 30 Narrow_forwardRelated Problem The transistor in Figure 4-19 has the following maximum ratings: PpDomax) = 500 mW, VCEmax) = 25 V, and Icimax) = 200 mA. Determine the maximum value to which Vcc can be adjusted without exceeding a rating. Which rating would be exceeded first?arrow_forward
- Use image below  SOLVE CAREFULLY!! Please Write Clearly and Box the final Answer Remember it says The motor efficiency is 93 percent arrow_forward10N 1 m 1 m 1 m 1 m c 1 m 5N 1m E D 10N 10N 1 m 1 m 20N 5N 10N Find the summation of torque / moments at point B. Find the summation of torque / moments at point C. Find the summation of torque / moments at point D. Find the summation of torque / moments at point E. Find the summation of torque/ moments at point A.arrow_forwardProblem 4 A jet engine shown in Fig. 3-26 is being tested statically on a test stand. The inlet velocity is 500 fps and the exhaust gases leave at a velocity of 3500 fps. The air at the inlet and the exhaust gases at the exit are at atmospheric pressure. The fuel-to-air ratio is 1/50 and the inlet and exhaust areas are both 2 ft. The density of air enter- ing is 0.0024 slugs/ft'. Determine the force Te required to hold the jet engine stationary. Fig. 3-25arrow_forward
- 480 ft-lbf First Gear (2.66) Final Drive (3.42) Axle Torque Thrust Force Figure 2 - Corvette Z06 and its transmission schematic. You start by measuring the 60-0 mph braking performance, which is accomplished along 30.56 m. The test weight (including the driver) was found to be 1510.5 kgf. 1) "Fuel is spent to make the vehicle go uphill, as you are aware. However, the fuel will not be restored if the vehicle is brought back from the hilltop to the initial elevation level."ANALYSE this statement under the laws of Thermodynamics.arrow_forwardSimple Machines Give the detailed sketch how we determined the displacement of the output (SO) that was used in calculating the Mechanical Advantage of the Four Pulley System. Write the equation. Label your sketch properly.arrow_forward1–2. Figure C1.2 shows a mechanism that is typical in the tank of a water closet. Note that flapper C is hollow and filled with trapped air. Carefully examine the configuration of the components in the mechanism. Then answer the following leading questions to gain insight into the operation of the mechanism. 1. As the handle A is rotated counterclockwise, what is the motion of flapper C? 2. When flapper C is raised, what effect is seen? 3. When flapper C is lifted, it tends to remain in an upward position for a period of time. What causes this tendency to keep the flapper lifted? 4. When will this tendency (to keep flapper C lifted) cease Plz connect me if you want to explan subject for me .... +962 79180149 Thxarrow_forward
- 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.arrow_forwardParameter Value Unit Remarks Inertia 36 tonne m? Damping 20 N-m.s Train mechanisms only Load Torque 117.720 kN-m A train has the effective total properties in the preceding table. It is desired to be able to completely stop the train from full speed in 15 seconds, while maintaining rated supply to the field. 1. Find the number of DC motors needed to run and decelerate the train without any motor being subjected to more than its rated capabilities. Assume uniform load distribution; identical machine models, terminal voltages, and controls. 2. Derive an expression for the armature current la(t) in each machine. 3. Derive an expression for the instantaneous terminal voltage Va(t) required for the controllers. 4. Due to practical limitations, it is often necessary to stop regenerative braking once one of the following occurs: zero-speed, zero Va(t), or zero la(t). Determine the angular speed (in rpm) at which this occurs.arrow_forwardA motor with a torque of 37.26N/m and a speed of 120°/sec rotates a robotic arm that consists of two gears (one with a diameter of 4cm and 8 gear teeth and the other with a diameter of 10cm and 24 gear teeth). The arm is attached to the gears, and the arm must lift approximately 50 pounds of weight. The arm needs to lift about 1m distance. Find the following? 1) Find the amount of force required to lift the 50 pounds of weight 2) Find the power needed to lift 50 pounds. 3) Find the gear ratio for the gears to work properly. DC Motor Worn Gear Gear 50 Ibsarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Elements Of ElectromagneticsMechanical EngineeringISBN:9780190698614Author:Sadiku, Matthew N. O.Publisher:Oxford University PressMechanics of Materials (10th Edition)Mechanical EngineeringISBN:9780134319650Author:Russell C. HibbelerPublisher:PEARSONThermodynamics: An Engineering ApproachMechanical EngineeringISBN:9781259822674Author:Yunus A. Cengel Dr., Michael A. BolesPublisher:McGraw-Hill Education
- Control Systems EngineeringMechanical EngineeringISBN:9781118170519Author:Norman S. NisePublisher:WILEYMechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage LearningEngineering Mechanics: StaticsMechanical EngineeringISBN:9781118807330Author:James L. Meriam, L. G. Kraige, J. N. BoltonPublisher:WILEY
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
Force | Free Body Diagrams | Physics | Don't Memorise; Author: Don't Memorise;https://www.youtube.com/watch?v=4Bwwq1munB0;License: Standard YouTube License, CC-BY