Slider Rod Explained Using Common PE Exam Problem
Watch our video! The application of relative motion equations, especially those involving velocity, are some of the most powerful in dynamics. It may not involve finding magnitudes of forces in members, however, the motion of a member can be the key to solving for forces in those members. The key to relative motion equations is […]
Identify Two-Force Members to Simplify Equilibrium Problems
Watch our video! The term “two-force member” is really a misnomer, as there is actually only “one” unknown magnitude of a force involved. There are two forces acting on the member, however, they have the same magnitude but opposite directions. What makes problems with two-force members present easier is that you only have to do […]
Pulley-To-Block Motion Finally Explained Clearly
Watch our video! Two very interesting machine dynamics problems involve a pulley and a block, connected together by a cable that is wound around the outside of the pulley. This assembly forms a “simple hoist”. In one problem, the block is released from rest, causing the pulley to rotate, and in the other problem, a […]
Struggling With Rolling Wheel Dynamics? Let me help.
Watch our video! The kinematics of a rolling wheel can get complicated quickly, especially for the accelerations which you need to solve kinetics (also called dynamics) problems. One of the nice things about this topic is that there are only two variations. The first is a wheel that is being driven by an applied torque […]
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Congratulations To All Graduating Engineers Who Will Shape The Future!
Attention all graduating engineers! As you embark on your journey into the professional world, remember: the key to success lies in meticulous planning. Whether you dream of designing innovative systems or advancing engineering technology, becoming a professional engineer requires strategic steps and foresight. Join us in exploring the ins and outs of this exciting path […]
Master Rolling Wheel Kinematics Once And For All
Watch our video! Kinematics is the study of the geometry of motion. Of the most common of moving objects, the rolling wheel is probably the most studied. This presentation shows how the velocity of particular points on a rolling wheel are determined using the relative motion equation. The most important aspect of the relative motion […]
Zero-force Members
Watch our video! Zero-force members are associated with idealized trusses where all the members of the truss are two-force members. This means the members are connected only by pins, only loaded at these pin connections, and are in either tension or compression. However, some of the members of the truss may have zero force acting […]
Learn to Solve Dynamics Problems Correctly
Watch our video! This presentation looks at the classic motion of a vehicle moving along a level road, where it could be speeding up or slowing down. In the example presented, the vehicle is slowing down due to its brakes, and in fact, we are told the wheels lock up. What is required in the […]
Welding Symbols
Watch our video! One of the most important standards in machine design are those specified by the American Welding Society. In one symbol critical information about the required weld is provided, such as location of the weld, type of weld, and size of the weld. If there are two sides to the connection, the symbol […]
