Correction couple is applied when masses are placed arbitrarily and to maintain _________

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An Internal combustion engine has a connecting rod of mass 2 kg and the distance between the centre of crank and centre of gudgeon pin is 25 cm. The Center of Gravity lies at a point 10 cm from the gudgeon pin along the line of centres. The radius of gyration of this system about an axis through the Center of Gravity perpendicular to the plane of rotation is 11 cm. If two masses are used instead of the connecting rod, one at the gudgeon pin and other at the crank pin, if the angular acceleration of the rod is 23 000 rad/s^2, then find the correction couple in N-m.

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In the figure given below, A and D are arbitrary masses placed Quantity L is known as _______

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The correction couple does not depend on _________

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The sum of torques required to accelerate a 2 mass system and to accelerate a rigid body is called correction couple.

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Mass moment of inertia of two arbitrary masses placed will be same as the mass moment inertia of the rigid body.

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An Internal combustion engine has a connecting rod of mass 2 kg and the distance between the centre of crank and centre of gudgeon pin is 25 cm. The Center of Gravity lies at a point 10 cm from the gudgeon pin along the line of centres. The radius of gyration of this system about an axis through the Center of Gravity perpendicular to the plane of rotation is 11 cm. If two masses are used instead of the connecting rod, one at the gudgeon pin and other at the crank pin. What will be the new radius of gyration?

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In a horizontal engine, reciprocating parts are retarded when the piston moves from _________

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Why the inertia torque acts in the opposite direction to the accelerating couple?

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The crank and connecting rod of a steam engine are 0.3 m and 1.5 m in length. The crank rotates at 150 r.p.m. clockwise, determine velocity of the piston when the crank is at an angle 40 degrees from IDC.

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Inertia torque acts in the same direction as the accelerating couple?

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If OC is the crank and PC is the connecting rod rotating in clockwise direction in the figure given below, then triangle OCM is known as _________

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In a horizontal engine, reciprocating parts are accelerated when the piston moves from _______

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The crank-pin circle radius of a horizontal engine is 300 mm. The mass of the reciprocating parts is 250 kg. When the crank has travelled 30° from T.D.C., the difference between the driving and the back pressures is 0.45 N/mm^2. The connecting rod length between centres is 1.2 m and the cylinder bore is 0.5 m. If the engine runs at 250 r.p.m. and if the effect of piston rod diameter is neglected, calculate the net load on piston.

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If all the masses are in one plane, then what is the maximum no. of masses which can be placed in the same plane?

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If the crank and the connecting rod are 300 mm and 1 m long respectively and the crank rotates at a constant speed of 250 r.p.m., determine the crank angle at which the maximum velocity occurs is ____

asked Sep 22, 2022 in Machine Dynamics by Grayson (34.3k points)

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In a slider crank mechanism, the length of the crank and connecting rod are 150 mm and 600 mm respectively. The crank position is 60° from inner dead centre. The crank shaft speed is 400 r.p.m. (clockwise). Velocity of the slider is ________

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If the crank and the connecting rod are 600 mm and 2 m long respectively and the crank rotates at a constant speed of 250 r.p.m, determine maximum velocity of the piston in m/s is _____

asked Sep 22, 2022 in Machine Dynamics by Grayson (34.3k points)

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In a slider crank mechanism, the length of the crank and connecting rod are 180 mm and 540 mm respectively. The crank position is 45° from inner dead centre. The crank shaft speed is 450 r.p.m. (clockwise), calculate angular velocity of the connecting rod in rad/s.

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Inertia force and the reversed effective force are the same.

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In the presence of frictional resistance, the expression for piston effort is _________

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When the acceleration of the piston is 0, then the velocity is _____

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Bennett’ construction is used when the motion of the crank is linear cycloidal.

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Ritterhaus’ construction is used when the motion of the crank is linear shm.

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When the piston is accelerated, the piston effort is given by which of the following the equation?

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When mass of the reciprocating parts is neglected then the inertia force is _____

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