damping ratio वाक्य
उदाहरण वाक्य
मोबाइल
- To characterize the amount of damping in a system a ratio called the damping ratio ( also known as damping factor and % critical damping ) is used.
- Continuous Wavelet Transform ( CWT ) is very efficient in determining the damping ratio of oscillating signals ( e . g . identification of damping in dynamical systems ).
- Scaled models can be designed to replicate the dynamic characteristic ( e . g . frequencies, mode shapes and damping ratios ) of their full-scale counterparts.
- The damped natural frequency is less than the undamped natural frequency, but for many practical cases the damping ratio is relatively small and hence the difference is negligible.
- Where \ zeta is the damping ratio, \ omega _ n is the natural frequency of the cupula, and u ( t ) is the input angular acceleration.
- The definition of the damping ratio and natural frequency presumes that the overall feedback system is well approximated by a second order system; i . e . the system has a dominant pair of poles.
- Therefore, the damped and undamped description are often dropped when stating the natural frequency ( e . g . with 0.1 damping ratio, the damped natural frequency is only 1 % less than the undamped ).
- The method of logarithmic decrement becomes less and less precise as the damping ratio increases past about 0.5; it does not apply at all for a damping ratio greater than 1.0 because the system is overdamped.
- The method of logarithmic decrement becomes less and less precise as the damping ratio increases past about 0.5; it does not apply at all for a damping ratio greater than 1.0 because the system is overdamped.
- The smooth idealization of design spectrum suggests smaller seismic response with the increased natural periods and effective damping ratio due to SSI . With this assumption, it was traditionally been considered that SSI can conveniently be neglected for conservative design.
- For example, calculating the FRF for a mass & ndash; spring & ndash; damper system with a mass of 1 kg, spring stiffness of 1.93 N / mm and a damping ratio of 0.1.
- What is often done in practice is to experimentally measure the free vibration after an impact ( for example by a hammer ) and then determine the natural frequency of the system by measuring the rate of oscillation, as well as the damping ratio by measuring the rate of decay.
- The general solution is a sum of a transient solution that depends on initial conditions, and a steady state that is independent of initial conditions and depends only on the driving amplitude \, \ ! F _ 0, driving frequency, \, \ ! \ omega, undamped angular frequency \, \ ! \ omega _ 0, and the damping ratio \, \ ! \ zeta.
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