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Calculation of damping ratio for car suspension?
Yes, but it involves a second order differential equation. Using the mass, spring constant and damping constant any physical object or assembly's damping ratio can be calculated. In the design of the vehicle the damping ratio was determined by the engineers at the automaker depending on the type of car. A sports car would have a higher damping ratio (maybe 0.7 or so) than a cushy luxury car. Over time the damping ratio will change as the components age. The most obvious is the bouncy feeling when you don't replace your struts or shocks as intended. That's when your tight sports car's suspension starts to behave like a 70's Buick. You just lowered your damping ratio without knowing it.
Damping is proportional to?
1/sq. root of gain
What is geometric damping?
Geometric damping is also called radiation damping. It is defined as energy radiation into a surrounding medium. Damping is defined as energy dissipation property of structures and materials that are put through time-variable loading.
How do you get -12 decibels?
Decibel is a factor or a ratio and no unit. If you have 1 volt and you damp it to 1/4 volt then you will get a damping of 12 dB. Voltage daming = 20×log (1/4) = (-)12 dB.
How do you determine the ratio of an amplitude?
Amplitude ratio to dB conversion:For amplitude of waves like voltage, current and sound pressure level:GdB = 20 log10(A2 / A1)A2 is the amplitude level.A1 is the referenced amplitude level.GdB is the amplitude ratio or gain in dB.dB to amplitude ratio conversion:A2 = A1 · 10(GdB / 20)A2 is the amplitude level.A1 is the referenced amplitude level.GdB is the amplitude ratio or gain in dB.
Why is sharpness of resonance inversely proportional to the damping force?
the further the frequency from the resonant one, greater would be the damping effect, hence greater the sharpness the lowre is the damping effect
Calculation of damping ratio for car suspension?
Yes, but it involves a second order differential equation. Using the mass, spring constant and damping constant any physical object or assembly's damping ratio can be calculated. In the design of the vehicle the damping ratio was determined by the engineers at the automaker depending on the type of car. A sports car would have a higher damping ratio (maybe 0.7 or so) than a cushy luxury car. Over time the damping ratio will change as the components age. The most obvious is the bouncy feeling when you don't replace your struts or shocks as intended. That's when your tight sports car's suspension starts to behave like a 70's Buick. You just lowered your damping ratio without knowing it.
Damping is proportional to?
1/sq. root of gain
What is the minimum damping ratio in fine boring spindle?
the fine boring spindle using CBN tools creates chatter . is it because less damping ratio of spindle? the bore is 100 mmdia . L/D ratio is 5
What is Impedance ratio?
Transformer Z-ratio = (Zpri / Zsec) = (Vpri / Vsec)2 It could also be the damping factor DF = Zload / Zsource The damping factor DF is the load impedance Zload (input impedance) divided by the the source impedance Zsource (output impedance).
Why are damping devices used on machinery?
Damping is the resistance offered by a body when a system is in vibration. But the basic use of a damper(damping) is to help reduce the oscillations or vibrations.we can also conclude that we use damping to slow down the effect of a moving part.Damping controls the amplitude of vibrations just to avoid resonance conditions.
How do you explain the effect snowfalls have on sound?
Spiky or wavy surfaces have the effect of damping sound. Snow is spiky if you look through a microscope at it.
What has the author Jae Kyung Cha written?
Jae Kyung Cha has written: 'Effect of loading rate on damping and stiffness in nailed joints' -- subject(s): Timber joints, Damping (Mechanics)
If gain is 10 db what is the ratio of voltages?
10 dB gain means a voltage ratio of 3.16227766 to 1.
What has the author Chu n Chou written?
Chu n Chou has written: 'Effect of drying on damping and stiffness of nailed joints between wood and plywood' -- subject(s): Drying, Lumber, Damping (Mechanics)
What is negative damping?
It is the opposite of normal damping (oscillation decreases), so in negative damping to get even bigger oscillation.
What is the different between positive and negative decibel?
Negative decibels mean damping (loss) and positive decibels mean amplification (gain).
