Radius of gyration in question 4 is 0,28 m and not
0,28mm. Please change.
Thank you.
Homework Answers
Add Answer to:
Radius of gyration in question 4 is 0,28 m and not 0,28mm. Please change. Thank you. Question 4 A horizontal sin...
Example : On a single cylinder reciprocating machine, stroke 20 cm, connecting rod length 30 cm,...
Example : On a single cylinder reciprocating machine, stroke 20 cm, connecting rod length 30 cm, connecting rod mass 3 kg, piston mass 2 kg, piston diameter 20 cm, crankshaft speed 3000 rpm, friction coefficient between cylinder and piston 0.5 and the connecting rod mass center is 10 cm from the center of the crankshaft. What is the pressure of the piston that will make the torque coming to the crankshaft 425 mN in the clockwise direction when the crank...
In a single cylinder piston machine, stroke 20 cm, connecting rod length 30 cm, connecting rod...
In a single cylinder piston machine, stroke 20 cm, connecting rod length 30 cm, connecting rod mass 3 kg, piston mass 2 kg, piston 20 cm, crankshaft speed 3000 rpm, cylinder piston piston friction coefficient 0.5 and connecting rod mass crank The length of the journal is 10 cm. What is the pressure of the piston, where the crank passes the TURN 37° and the torque coming to the crankshaft will make 425 mN in clockwise? (Rotational masses are balanced.)...
L50 DKI & DK2: 9.00 pm 10.30 pm QUESTION 2 (15 marks) (a) A twin cylinder...
L50 DKI & DK2: 9.00 pm 10.30 pm QUESTION 2 (15 marks) (a) A twin cylinder V-engine has cylinders set at 120°, with both piston connected to a single crank as shown in Figure Q2(a). The stroke is 140 mm and the connecting rods are 210 mm long. The reciprocating mass per cylinder is 1.2 kg. Determine the maximum primary and secondary forces acting on the frame of the engine when running at 2,400 rpm. (b) Figure Q2(b) shows 4...
4. An engine connecting rod is 25 cm between the centre-lines of the big and small...
4. An engine connecting rod is 25 cm between the centre-lines of the big and small ends. The big end bearing is 5 cm diameter and the small end is 2.5 cm diameter. When the connecting rod is suspended on a horizontal knife edge about its big end and vibrated as a compound pendulum, the measured frequency of vibration is 1.145 Hz. When the experiment is repeated with the rod suspended from the small end, the measured frequency of vibration...
please show all work and explain 4. Determine the dimensions of an I-section connecting rod for...
please show all work and explain
4. Determine the dimensions of an I-section connecting rod for a petrol engine from the following data: Diameter of the piston = 110 mm; Mass of the reciprocating parts = 2 kg: Length of the connecting rod from centre to centre = 325 mm; Stroke length = 150 mm; R.P.M. = 1500 with possible overspeed of 2500; Compression ratio = 4:1; Maximum explosion pressure = 2.5 N/mm².
During forward stroke of the piston of the double acting steam engine, the turning moment has the maximum value of 2000 N-m when the crank makes an angle of 80° with moment is 1500 N-m when the c...
During forward stroke of the piston of the double acting steam engine, the turning moment has the maximum value of 2000 N-m when the crank makes an angle of 80° with moment is 1500 N-m when the crank makes an angle of 80° with the outer dead center. The turning moment diagram for the engine may be assumed for simplicity to be represented by two triangles. If the crank makes 100 r.p.m. and the radius of gyration of the flywheel...
2. An engine has four cylinders arranged in two Vee banks, all being mounted symmetrically, above...
2. An engine has four cylinders arranged in two Vee banks, all being mounted symmetrically, above the main shaft. Each bank consists of two cylinders whose centre-lines are inclined at 90 to one another and whose connecting rods act on a single crankpin. The cranks of the two banks are set 180° apart a) Investigate the state of balance of the engine with respect to primary and secondary forces and couples and detemine the magnitude of any unbalanced forces or...
MACHINES SYSTEM DESIGN
Design a cast iron trunk type piston for a single acting four stroke engine developing 75 kW per cylinder when running at 600 r.p.m. The other avialable data is as follows: Maximum gas pressure = 4.8 N/mm2; Indicated mean effective pressure = 0.65 N/mm2; Mechanical efficiency = 95%; Radius of crank = 110 mm; Fuel consumption = 0.3 kg/BP/hr; Calorific value of fuel (higher) = 44 × 103kJ/kg; Difference of temperatures at the centre and edges of the piston head...
Q-1 (25 pts) An engine with three cylinders in-line have successive cranks at 240°C and pitched...
Q-1 (25 pts) An engine with three cylinders in-line have successive cranks at 240°C and pitched at 350 mm apart. The effective reciprocating and the connecting rod is 450 mm long. If the engine runs at 955 rpm, ,mass for each cylinder is 12 kg, the crank radius is 100 mm a. Show that primary and secondary forces are balanced b. Determine the reactions at the end bearings A and B due to primary couple effects. c. State the angular...
Help with B and C please, thank you Question 2 (a) (i) Outline the chain of...
Help with B and C please, thank you
Question 2 (a) (i) Outline the chain of events that led to the loss of the Space Shuttle Orbiter Columbia in 2003 (100 words maximum). (ii) Why did flight controllers not attempt further investigation or repair of the suspected damage to the orbiter before re-entry? (100 words maximum). [6] (b) Make a sectioned engineering sketch of a single-cylinder four-stroke internal combustion engine, viewed along the crankshaft centreline. Orient the engine with the...
Example : On a single cylinder reciprocating machine, stroke 20 cm, connecting rod length 30 cm, connecting rod mass 3 kg, piston mass 2 kg, piston diameter 20 cm, crankshaft speed 3000 rpm, friction coefficient between cylinder and piston 0.5 and the connecting rod mass center is 10 cm from the center of the crankshaft. What is the pressure of the piston that will make the torque coming to the crankshaft 425 mN in the clockwise direction when the crank...
In a single cylinder piston machine, stroke 20 cm, connecting rod length 30 cm, connecting rod mass 3 kg, piston mass 2 kg, piston 20 cm, crankshaft speed 3000 rpm, cylinder piston piston friction coefficient 0.5 and connecting rod mass crank The length of the journal is 10 cm. What is the pressure of the piston, where the crank passes the TURN 37° and the torque coming to the crankshaft will make 425 mN in clockwise? (Rotational masses are balanced.)...
L50 DKI & DK2: 9.00 pm 10.30 pm QUESTION 2 (15 marks) (a) A twin cylinder V-engine has cylinders set at 120°, with both piston connected to a single crank as shown in Figure Q2(a). The stroke is 140 mm and the connecting rods are 210 mm long. The reciprocating mass per cylinder is 1.2 kg. Determine the maximum primary and secondary forces acting on the frame of the engine when running at 2,400 rpm. (b) Figure Q2(b) shows 4...
please show all work and explain
4. Determine the dimensions of an I-section connecting rod for a petrol engine from the following data: Diameter of the piston = 110 mm; Mass of the reciprocating parts = 2 kg: Length of the connecting rod from centre to centre = 325 mm; Stroke length = 150 mm; R.P.M. = 1500 with possible overspeed of 2500; Compression ratio = 4:1; Maximum explosion pressure = 2.5 N/mm².
During forward stroke of the piston of the double acting steam engine, the turning moment has the maximum value of 2000 N-m when the crank makes an angle of 80° with moment is 1500 N-m when the crank makes an angle of 80° with the outer dead center. The turning moment diagram for the engine may be assumed for simplicity to be represented by two triangles. If the crank makes 100 r.p.m. and the radius of gyration of the flywheel...
2. An engine has four cylinders arranged in two Vee banks, all being mounted symmetrically, above the main shaft. Each bank consists of two cylinders whose centre-lines are inclined at 90 to one another and whose connecting rods act on a single crankpin. The cranks of the two banks are set 180° apart a) Investigate the state of balance of the engine with respect to primary and secondary forces and couples and detemine the magnitude of any unbalanced forces or...
Q-1 (25 pts) An engine with three cylinders in-line have successive cranks at 240°C and pitched at 350 mm apart. The effective reciprocating and the connecting rod is 450 mm long. If the engine runs at 955 rpm, ,mass for each cylinder is 12 kg, the crank radius is 100 mm a. Show that primary and secondary forces are balanced b. Determine the reactions at the end bearings A and B due to primary couple effects. c. State the angular...
Help with B and C please, thank you
Question 2 (a) (i) Outline the chain of events that led to the loss of the Space Shuttle Orbiter Columbia in 2003 (100 words maximum). (ii) Why did flight controllers not attempt further investigation or repair of the suspected damage to the orbiter before re-entry? (100 words maximum). [6] (b) Make a sectioned engineering sketch of a single-cylinder four-stroke internal combustion engine, viewed along the crankshaft centreline. Orient the engine with the...
Most questions answered within 3 hours.
-
An empty test tube weighs 15.923 grams. Then,
MgCl2•6H2O is added into the test tube. After...
asked 34 minutes ago -
Please answer true or false. Words
cannot be changed or added in to make it true...
asked 32 minutes ago -
(a) A piston at 6.1 atm contains a gas that occupies a volume of
3.5 L....
asked 33 minutes ago -
Assume memory access is 10 units of time and disk access is
10000 units of time....
asked 52 minutes ago -
1. Are all good samples random?
2. Magazines often report surveys giving statistics such as “63%...
asked 1 hour ago -
Under all the various types of market structures, firms
must eventually earn some economic profits for...
asked 1 hour ago -
Consider the following fitness regime for a single locus trait
with two co-dominant alleles: w11 =...
asked 1 hour ago -
A large cable company reports the following.
80% of its customers subscribe to its cable TV...
asked 1 hour ago -
Please answer the question in brief.
Discuss the role of ERP in organizations. Are ERP tools...
asked 1 hour ago -
Discuss the pros and cons of collaborative software such
as SameTime. Does it increase productivity? What...
asked 1 hour ago -
Buying your in-laws a gift because it’s expected is
due to the ____________ motive of gift-giving....
asked 1 hour ago -
Calculate the expected value, the variance, and the standard
deviation of the given random variable X....
asked 2 hours ago