Moments and Couple Moments
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Video Lecture 13 of 83
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Lecture Description

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The objectives of this video are to discuss about moment & couple moments followed by a workout on couple example. First of all, the video clears the concept of couple illustrating the fact that when two parallel forces acting on an object in opposite direction separated by a perpendicular distance, it results a phenomenon known as couple. Next, the video briefly discusses how a couple produces moments on a circular body and subsequently shows the couple moments calculation for it.

Moving next, the video does a workout on couple example where it has asked to calculate the force required to turn a wheel when applied at the edge of wheel and at the end of the bar. The necessary dimension is given with the free body diagram of the exemplary problem. It has also given that a 10 Nm momentum is required to turn the wheel. The video, then, shows the entire calculation & finally obtains the values of required forces to turn the wheel from particular positions.

Course Description

Mechanics, the study of forces and physical bodies, underpins a very large proportion of all forms of engineering. A thorough understanding of mechanics is essential to any successful engineer. This course helps develop an understanding of the nature of forces with consideration for how they may be simplified in an engineering context. The conditions of equilibrium are then used to solve a number of problems in 2D and 3D before moving on to a broad range of topics including centroids, distributed loads, friction and virtual work. The course will also provide an introduction to dynamics, with a particular focus on the effects that forces have upon motion.