Question: Q10/ Two shafts whose centers are I m apart are connected by an open V-belt drive. The driving pulley is supplied with 100 kW

Q10/ Two shafts whose centers are I m apart are connected by

Q10/ Two shafts whose centers are I m apart are connected by an open V-belt drive. The driving pulley is supplied with 100 kW and has an effective diameter of 300 mm. It runs at 1000 rpm while the driven pulley runs at 375 rpm. The angle of groove on the pulleys is 40. The permissible tension in 400 mm cross-sectional area belt is 2.1 MPa. The density of the belt is 1100 kg/m. The coefficient of friction between the belt and pulley is 0.28. Estimate the number of belts required. Q11/ A leather belt 125 mm wide and 6 mm thick, transmits power from a pulley 750 mm diameter which runs at 500 rpm. The tension ratio is equal to 2.2 and u = 0.3. If the mass of 1 m of leather is 1 Mg and the stress in the belt is not to exceed 2.75 MPa, find (a) the angle of contact (in degree) and (b) the maximum power that can be transmitted. Q12/ An electric motor drive an exhaust fan through an open belt drive. Following data are provided: Motor Pulley 400 Fan Pulley 1600 Diameter (mm) Angle of contact (radians) 2.5 Coefficient of friction 0.3 Speed (pm) Power transmitted (kW) 700 22.5 Calculate the width of 5 mm thick flat belt. Take permissible stress for the belt material as 2.3 MPa, and assuming the density of the belt is 1000 kg/m. Q13/ A rope drive are required to transmit 750 kW from a pulley of 1 m diameter running at 450 rpm. The safe pull in each rope is 2250 N and the mass of the rope is 1 kg /m length. The angle of lap and the groove angle are 150 and 45 respectively. Find the number of ropes required for the drive if the coefficient of friction between the rope and the pulley is 0.3. Q14/ A shaft rotating at 200 rpm drive another shaft at 300 rpm and transmit 6 kW through a belt. The belt is 100 mm wide and 10 mm thick. The distance between the shafts is 4m.The smaller pulley is 0.5 m in diameter. Calculate the stress in the belt, if it is a cross belt drive. Take u = 0.3. 10-10

Step by Step Solution

★★★★★

3.42 Rating (161 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

y Finding distance of the Driving Pully N 1000 N2 375 300 Somm Calcalating mass fon umit length of ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Programming Questions!

Two reservoirs 1,200 m apart are connected by a 50-cm smooth concrete pipe. If the two reservoirs have an elevation difference of 5m, determine the discharge (20C) in the pipe by (a) The...

Consider two equal-size rooms connected by an open door. One room is maintained at a higher temperature than the other one. Which room contains more air molecules?

What is the maximum power that can be received over a distance of 1.5 km in free space with a 1.5-GHz circuit consisting of a transmitting antenna with a gain of 25 dB and a receiving antenna with a...

Two gears, whose centers are 1.5 m apart, are connected by a belt. The smaller 0.40-m diameter gear is rotating with an angular velocity of 50 rad/s. Calculate the angular velocity of the larger...

A valve in a cylinder has a cross sectional area of 2 in2 with a pressure of 100 psia inside the cylinder and 14.7 psia outside. How large a force is needed to open the valve?

Two rods whose lengths are l1 and l2 and heat conductivity coefficients 1 and 2 are placed end to end. Find the heat conductivity coefficient of a uniform rod of length l1 + l2 whose conductivity is...

At the temperature 0C the electric resistance of conductor 2 is times that of conductor 1. Their temperature coefficients of resistance are equal to a2 and a1 respectively. Find the temperature...

One end of a rod, enclosed in a thermally insulating sheath, is kept at a temperature T1 while the other, at T2. The rod is composed of two sections whose lengths are l1 and l2 and heat conductivity...

As explained in chapter 5, risk measures such as standard variation and beta equate risk to volatility. In other words, the more volatile the historical returns from specific financial assets, the...

In introductory physics laboratories, a typical Cavendish balance for measuring the gravitational constant G uses lead spheres with masses of 1.50 kg and 15.0 g whose centers are separated by about...

The marketing approach for Mountain Dew was concentrated on thrill-seekers and outdoor enthusiasts. The beverage was advertised as a means of overcoming fear, and the marketing included scenarios...

Use the Fourier transform to find i(t) in the circuit of Fig. 18.47 if v s (t) = 10e2t u(t). 2 2 1 H

QUESTION 1 3 * 1 POINT Determine a pair o f equations that can parameterize the curve 7 x 4 = - 8 x - 2 y + 2 , using x ( t ) = t - 5 a s one o f the equations. Provide your answer below: x ( t ) = t...

clear all clc v = [-1 1] x=1 y=1 z=1 for i=1:5 x=x+v (1) y=y+v (2) z=v (1) +v (2) v (1) =v (1) +v (2) v (2) =v (2) end

Write a program in C function named \'get output\' which takes a two-dimensional integer array as a parameter and returns the no. of ones found in the diagonal of the array. (Assume the array is...

An ideal plug flow reactor of volume V is operated with recycle at the conditions shown in Figure 2. The reaction A B occurs in the reactor in the liquid phase according to first order kinetics with...

Determ Structure A Structure B Relationship isomers H. :NEN H. H-C-C- NEN: H-C-C-H O resonance structures H H H. O nelther O Isomers H o: H. :: H. H H-C-C-N-C-H H-C-C=N-C- O resonance structures -H-...

condense: Guardianship and Decision-Making: Addressing legal guardianship issues for individuals with ASD who may not be able to make certain decisions independently. Exploring alternatives like...

Two gears having an angular velocity ratio of 3:1 are mounted on shafts whose centers are 136 mm apart. If the module of the gears is 4 mm/tooth, how many teeth are there on each gear?

When bevel gears connect two shafts whose axes intersect at an angle greater than a right angle and one of the bevel gears has a pitch angle of 9 0 \ deg , then they are known as angular bevel gears...

Young domestic chickens have the ability to orient themselves in the earths magnetic field. Researchers used a set of two coils to adjust the magnetic field in the chicks pen. Figure P24.20 shows the...

Suppose two circles, whose centers are at least 2a units apart (see figure), are centered at F 1 and F 2 , respectively. The radius of one circle is 2a + r and the radius of the other circle is r,...

please answer A and B Picing 199 Zee Spin Wedges Zee Spin manu attack wedge) that vary with l among professional Spin wedges consist of three parts: club and shafts and purchases is sold to dis...