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5.8: Support Reactions in Three Dimensions

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JoVE Core
Mechanical Engineering

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Support Reactions in Three Dimensions
 
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5.8: Support Reactions in Three Dimensions

Support reactions in three dimensions help maintain the stability and equilibrium of various structures and systems. These reactions prevent the system from translating and rotating, ensuring the design can withstand external forces and perform its intended function efficiently and safely. Some of the supports providing support reactions in three dimensions are discussed below:

Ball and Socket Joint is one of the supports allowing free rotation about any axis. This freedom of rotation is possible because there is no moment restricting the rotation in the ball and socket joint. However, the joint restricts translational motion due to three reaction forces along the three dimensions.

Another type of support is the single smooth pin support. This support creates three reaction forces and two couple moments, allowing rotational motion along the axis of the pin while restricting movement in other directions.

Fixed supports provide reaction forces and moments along all three directions. This type of support ensures that the entire system remains stable and secure under various loads and conditions, preventing unwanted movement or deformation that could compromise the system's functionality.

Hinge support is another common type of support employed in mechanical engineering, often used in doors and other similar applications. With hinge support, three reaction forces at the support restrict the translational motion of the door, while two moments restrict the rotation of the door. This arrangement allows the door to rotate about a single axis while maintaining stability and control.


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Tags

Support Reactions Three Dimensions Stability Equilibrium Structures Systems Translation Rotation External Forces Design Function Safety Supports Ball And Socket Joint Free Rotation Moment Restriction Translational Motion Single Smooth Pin Support Couple Moments Rotational Motion Fixed Supports Stability Secure Loads Conditions Movement Deformation Functionality Hinge Support

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