Mechanical Engineering - Engineering Mechanics - Discussion
Discussion Forum : Engineering Mechanics - Section 1 (Q.No. 39)
39.
A redundant frame is also called __________ frame.
Discussion:
13 comments Page 2 of 2.
Taps said:
5 years ago
Imperfect when n>2j-3 redundant and when n<2j-3 deficient.
n=2j-3 Perfect frame.
n=2j-3 Perfect frame.
(1)
NAVEEN said:
4 years ago
Perfect Frame.
The frame, which is composed of such members, which are just sufficient to keep the frame in equilibrium, when the frame is supporting an external load, is known as the perfect frame. Hence for a perfect frame, the number of joints and number of members are given as n = 2j -3 Imperfect Fram An Imperfect frame is one that does not satisfy the relation between the numbers of members and number of joints given by the equation n = 2j -3. This means that the number of members in an imperfect frame will be either more or less than (2j-3) It may be a deficient frame or a redundant frame. Deficient Frame If the numbers of members in a frame are less than (2j-3), then the frame is known as a deficient frame. Redundant Frame If the numbers of members in a frame are more than (2j-3), then the frame is known as a redundant frame.
The frame, which is composed of such members, which are just sufficient to keep the frame in equilibrium, when the frame is supporting an external load, is known as the perfect frame. Hence for a perfect frame, the number of joints and number of members are given as n = 2j -3 Imperfect Fram An Imperfect frame is one that does not satisfy the relation between the numbers of members and number of joints given by the equation n = 2j -3. This means that the number of members in an imperfect frame will be either more or less than (2j-3) It may be a deficient frame or a redundant frame. Deficient Frame If the numbers of members in a frame are less than (2j-3), then the frame is known as a deficient frame. Redundant Frame If the numbers of members in a frame are more than (2j-3), then the frame is known as a redundant frame.
(2)
Abhay said:
2 years ago
An Imperfect frame not satisfies the relation between the number of members and a number of joints given by the equation n = 2j – 3.
This means that number of members in an imperfect frame will be either more or less than (2j-3) It is known as a redundant frame.
This means that number of members in an imperfect frame will be either more or less than (2j-3) It is known as a redundant frame.
(1)
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