FunctionBay | Types of RecurDyn Forces

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A. General Force

(1) Translational Spring Damper

A translational spring is the most widely used force and a mechanical element that is created by winding a spring steel into a coil. Accordingly, when a spring is distorted by applying an external force, it can absorb or store energy using its elasticity and use this energy to return to its original shape. Generally, springs are widely used in the suspension systems of automobiles or bed mattresses.

Translational Spring Damper Force

Translational Spring Damper Force

(2) Rotational Spring Damper

A rotational spring is a mechanical element created by winding a spring steel into a spiral shape. It is also called a spiral spring. It stores elastic energy by winding itself into a spiral form and uses the stored energy when it reverts to its original shape.

Rotational Spring Damper Force

Rotational Spring Damper Force

(3) Axial Force

An axial force allows you to draw a straight line between two objects and define the action and reaction forces on each object as a function of time.

Axial Force

(4) Rotational Axial Force

A rotational axial force allows you to define the action and reaction torques at a rotational axis defined between two objects as a function of time.

Rotational Axial Force

(5) Translational Force

A translational force allows you to define three forces in the three translational directions, which are the x, y, and z axes of an object, as a function of time. Since you can change the reference frame for the direction of a force, you can consider the motion of a body when applying a translational force to the body.

Translational Force

Translational Force

(6) Rotational Force

A rotational force allows you to define the torque for each of the three rotational axes of a body as a function of time.

Rotational Force

Rotational Force

(7) Screw Force

A screw force allows you to define the translational forces and torques in the three translational directions and the three rotational axes of a body as a function of time.

Screw Force

(8) Bushing Force

A bushing force allows you to create translational and rotational springs in all six degrees of freedom of a specific point. With a bushing force, you can get the effect of combining two objects at one point.

Bushing Force

B. Special Force

(1) Matrix Force

A matrix force allows you to define the stiffness matrix with the forces between two bodies. Due to these properties, you can use the matrix force as any type of force that you want. For example, you can create a bearing model with a stiffness matrix for six axes and input it into the stiffness matrix of a matrix force to simulate a stiffness force that has the properties of a bearing.

(2) Beam Force

A beam force allows you to use an equation on the force of a beam between two bodies and make the two bodies to behave as if there is a beam between them. To do so, you need to enter Young’s modulus, shear modulus, the geometry of a beam’s cross-section, and area moment to run simulations on the beam.

(3) Plate Force

A plate force allows you to apply a force equation that makes four bodies behave as if they are four shells. To do so, you need to enter Young’s modulus, Poisson’s ratio, and the thickness.

(4) Tire Force

A tire force is embedded with a formula for tires to simulate the dynamic behavior of an automobile tire. It supports the Fiala and UA-Tire models, which are currently widely used, as well as the user’s tire, for which you can define your own formula.