Frequency of suspension system of vehicle

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Discussion Overview

The discussion revolves around the frequency ranges of suspension systems and dampers in different types of vehicles, specifically 2 wheelers, 4 wheelers, and heavy vehicles. Participants are seeking approximate values for the frequency of spring suspensions and dampers, both individually and in combination, while considering typical road conditions.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested, Conceptual clarification

Main Points Raised

  • One participant requests specific frequency ranges for spring suspensions and dampers in various vehicle types, including a request for combined values.
  • Another participant notes the complexity of the question due to numerous variables affecting suspension performance, such as road conditions.
  • A different participant suggests focusing on normal road conditions and asks for rough frequency ranges, emphasizing a desire for minimum to maximum values.
  • One participant expresses uncertainty about frequency measurements but offers to provide physical characteristics of springs and mentions the variability of shock rates due to heating during use.
  • A later reply reiterates the need for specific values despite the technical challenges mentioned.

Areas of Agreement / Disagreement

Participants do not appear to reach a consensus on the specific frequency values requested, and multiple competing views regarding the complexity of the question and the factors influencing suspension performance remain evident.

Contextual Notes

Participants acknowledge the influence of various road conditions on suspension behavior, which complicates the determination of frequency ranges. There is also mention of the need for specific measurement techniques for accurate data.

Who May Find This Useful

Individuals interested in vehicle dynamics, automotive engineering, and suspension system design may find this discussion relevant.

vivekdoulat
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What is the frequency Range with which the suspension systems and damper of 2
wheelers, 4 wheelers and heavy vehicles, vibrate? I would like to have the values for each
i.e. frequency of spring suspension and damper separately and also when used in combination.
I have attached a excel sheet for the same.

Vehicle Type Spring suspension (Hz) Damper (Hz) Combined (Hz)

2 wheeler

4 wheeler

Heavy vehicle vivekd@urdip.res.in
 

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Engineering news on Phys.org
not that simple...spring and shock are acted upon by the track (road surface) now you have numerous variables like pot holes, cracks, rumble strips, tar patches and the like. what is your goal asking this question?
 
Eliminating major variables like potholes...
Considering normal road condition with usual disruptions and dents...I just want a rough and approximate values of each...more precisely i would like to know the frequency ranges...minimum to maximum...
 
i don't know about frequency ..i can measure the spring and give you wire diameter, height.most springs are rated in pound per inch compression..i have a spring rate tester..shocks must be measured on a shock dynometer..one thing about shocks..the rate will change as the shock heats up which is why chassis tuning in racing is so tuff.
 
Thanks Mike...but I need values...
 

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