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18. A gear and a stepped pulley arrangement are used to transfer power across two adjacent...
Q1 A belt drive and pulley arrangement is designed to transmit 75 kW of power at 1200 rpm, genera...
Q1 A belt drive and pulley arrangement is designed to transmit 75 kW of power at 1200 rpm, generated by a six-pole squirrel-cage induction motor. The belt connects two shafts 3 m apart, with axes in the same horizontal plane. The driven shaft runs at half the angular speed of the driver and it runs a light shock machinery. As a design engineer you need to do the following; i. Design shafts suitable for this application (20 marks) ii. Select...
A step down gear drive is used in a conveyor system. The input pinion is made of 18 teeth runs at 1720 rpm, the driv...
A step down gear drive is used in a conveyor system. The input pinion is made of 18 teeth runs at 1720 rpm, the driven gear runs at 860 rpm. The gears are supported on less rigid mountings, less accurate gears. The gears are made by hobbing process. Find: (a) The tooth bending strength of both wheels and the maximum power that can be transmitted to the drive (b) By considering surface durability conditions find the_maximum power that can be...
Question 1 In the epicyclic gear shown in Figure Q1 the Annulus A1 and the Sun...
Question 1 In the epicyclic gear shown in Figure Q1 the Annulus A1 and the Sun wheel S2 are compound, the Sun wheel Si rotates with the input shaft and both Planet cages rotate with the output shaft. The numbers of teeth on the o wheels are Si=24, A1=72, Sz=40 and A2=80. (1) Find the gear ratio of the system when the Annulus A1 is held fixed. S Find the gear ratio of the system when the Figure Q1 Annulus...
Figure 1 shows the layout of countershaft used to transmit power to a blower through a...
Figure 1 shows the layout of countershaft used to transmit power to a blower through a pulley drive (4-5). Pulley (driving sheave) 4 has a diameter of 125-mm and pulley (driven sheave) 5 has a diameter of 75 mm. Pulley 5 is mounted vertically below pulley 4 (as shown in the figure). Belt tension on the loose side is 20% of the tension on the tight side. A power of 7.5 kW is transmitted via the gear set (2-3) from...
A decibel (dB) is a logarithmic unit used to express the ratio of two values of...
A decibel (dB) is a logarithmic unit used to express the ratio of two values of a physical quantity, often sound level, power or intensity. It is given by: dB - 20 logx Where x is the ratio. Convert the following numbers to dB 1. x=01 dB- dB = 3. x 10 dB- 4. x=473 dB : 5.x=1000 dB= Problem 2 (10 points) Convert the following numbers in dBs to magnitudes (i.e. find x) . -55 dB -17 dB_ 4,...
find v belt drive design power select belt type determine shive size (belt speed 4000 ft/min)...
find v belt drive
design power
select belt type
determine shive size (belt speed 4000 ft/min)
find shive size from power rating figure
find rated power
find estimated centre distance
find belt length (by selecting standard belt length)
calculate actual centre distance
find contact angle for small shieve
determine correct factors
calculate correct power per belt
no. of belt needed
V-Belt Designing Sample Problem . Given: A 4 cylinder diesel engine runs at 80 hp, 1800 rpm, to drive a...
summarizr the followung info and write them in your own words and break them into different...
summarizr the followung info and write them in your own words and break them into different key points. 6.5 Metering Chamber: 6.5.1 The minimum size of the metering box is governed by the metering area required to obtain a representative test area for the specimen (see 7.2) and for maintenance of reasonable test accuracy. For example, for specimens incorporating air spaces or stud spaces, the metering area shall span an integral number of spaces (see 5.5). The depth of...
summatize the following info and break them into differeng key points. write them in yojr own...
summatize the following info and break them into differeng key points. write them in yojr own words
apartus
6.1 Introduction—The design of a successful hot box appa- ratus is influenced by many factors. Before beginning the design of an apparatus meeting this standard, the designer shall review the discussion on the limitations and accuracy, Section 13, discussions of the energy flows in a hot box, Annex A2, the metering box wall loss flow, Annex A3, and flanking loss, Annex...
Read the Article posted below, then answer the following questions: Mergers & acquisitions are a major...
Read the Article posted below, then answer the following
questions:
Mergers & acquisitions are a major form of
corporate diversification strategy, identify and discuss the top
three reasons why most (50-60%) of acquisitions fail to create
shareholder value.
What are the five major components of “CEMEX
Way” and why has this approach been so successful in
post-acquisition integration?
In your opinion, what can other companies learn from
the “CEMEX Way” as a benchmark for acquisition
management?
Article:
CEMEX: Globalization "The...
A step down gear drive is used in a conveyor system. The input pinion is made of 18 teeth runs at 1720 rpm, the driven gear runs at 860 rpm. The gears are supported on less rigid mountings, less accurate gears. The gears are made by hobbing process. Find: (a) The tooth bending strength of both wheels and the maximum power that can be transmitted to the drive (b) By considering surface durability conditions find the_maximum power that can be...
Question 1 In the epicyclic gear shown in Figure Q1 the Annulus A1 and the Sun wheel S2 are compound, the Sun wheel Si rotates with the input shaft and both Planet cages rotate with the output shaft. The numbers of teeth on the o wheels are Si=24, A1=72, Sz=40 and A2=80. (1) Find the gear ratio of the system when the Annulus A1 is held fixed. S Find the gear ratio of the system when the Figure Q1 Annulus...
Figure 1 shows the layout of countershaft used to transmit power to a blower through a pulley drive (4-5). Pulley (driving sheave) 4 has a diameter of 125-mm and pulley (driven sheave) 5 has a diameter of 75 mm. Pulley 5 is mounted vertically below pulley 4 (as shown in the figure). Belt tension on the loose side is 20% of the tension on the tight side. A power of 7.5 kW is transmitted via the gear set (2-3) from...
A decibel (dB) is a logarithmic unit used to express the ratio of two values of a physical quantity, often sound level, power or intensity. It is given by: dB - 20 logx Where x is the ratio. Convert the following numbers to dB 1. x=01 dB- dB = 3. x 10 dB- 4. x=473 dB : 5.x=1000 dB= Problem 2 (10 points) Convert the following numbers in dBs to magnitudes (i.e. find x) . -55 dB -17 dB_ 4,...
find v belt drive
design power
select belt type
determine shive size (belt speed 4000 ft/min)
find shive size from power rating figure
find rated power
find estimated centre distance
find belt length (by selecting standard belt length)
calculate actual centre distance
find contact angle for small shieve
determine correct factors
calculate correct power per belt
no. of belt needed
V-Belt Designing Sample Problem . Given: A 4 cylinder diesel engine runs at 80 hp, 1800 rpm, to drive a...
summatize the following info and break them into differeng key points. write them in yojr own words
apartus
6.1 Introduction—The design of a successful hot box appa- ratus is influenced by many factors. Before beginning the design of an apparatus meeting this standard, the designer shall review the discussion on the limitations and accuracy, Section 13, discussions of the energy flows in a hot box, Annex A2, the metering box wall loss flow, Annex A3, and flanking loss, Annex...
Read the Article posted below, then answer the following
questions:
Mergers & acquisitions are a major form of
corporate diversification strategy, identify and discuss the top
three reasons why most (50-60%) of acquisitions fail to create
shareholder value.
What are the five major components of “CEMEX
Way” and why has this approach been so successful in
post-acquisition integration?
In your opinion, what can other companies learn from
the “CEMEX Way” as a benchmark for acquisition
management?
Article:
CEMEX: Globalization "The...
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