What is meant by dynamic stiffness?

Dynamic stiffness, or impedance, is the ability of the actuator to resist an external oscillatory load. Dynamic stiffness requirements are defined in the hydraulic actuator specification as boundaries within which the measured impedance must be located.

How do you determine dynamic stiffness?

Dynamic Stiffness is the static spring stiffness of the mechanical system complemented by the dynamic effects of mass and damping. the ratio of the average fluid angular velocity divided by the rotor angular velocity.

What is dynamic stiffness matrix?

Dynamic stiffness formulation. The dynamic stiffness matrix of a structural element essentially relates the amplitudes of the forces to those of the corresponding displacements at the nodes of the harmonically vibrating structural element.

What is equivalent static stiffness?

The equivalent stiffness consists of radial stiffness of elastic wheel and elastic foundation stiffness of hinges, it is as known as static stiffness of the MEW. It mainly depends on the component content of laminated structure of elastic wheel and the circumferential distribution of the number of hinges.

What is stiffness physics?

Stiffness is the extent to which an object resists deformation in response to an applied force.

What is dynamic analysis structure?

Structural dynamics is a type of structural analysis which covers the behavior of a structure subjected to dynamic (actions having high acceleration) loading. Any structure can be subjected to dynamic loading. Dynamic analysis can be used to find dynamic displacements, time history, and modal analysis.

What is pushover analysis?

Pushover analysis is a static procedure that uses a simplified nonlinear technique to estimate seismic structural deformations. Pushover analysis is commonly used to evaluate the seismic capacity of existing structures and appears in several recent guidelines for retrofit seismic design.

What is stiffness and deflection?

Stiffness is resistance to deflection Sponsored Links. Stiffness is the resistance of an elastic body to deflection or deformation by an applied force – and can be expressed as. k = F / δ (1)

What is unit of EI?

So it is N/ mm^3. And I =Moment of inertia. And units are mm^4. So EI units is Nmm.