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Resonance Machine for Fatigue Testing of Resilient Components in Normal Laboratory Atmosphere
 
Dynamic Test on Passenger Car Springs
 
 
Technical Specification: 

- Components to be tested: Parallel and circular displaced springs of all kind, with and without corrosion impact 
- Maximum load allowed for each of the two test positions : Fmax = 40 kN 
- Number of springs to be tested simultaneously : limited by Fmax 
- Stroke (displacement controlled) : S = 10 to 250 mm 
- Maximum length of springs : Lo = 600 mm 
- Testing frequency : fo = 0.50 x Root(nxR) [Hz] 
                      n = number of springs 
                      R = spring rate [N/mm] 
                      fo = 2 to 25 Hz 
- Mesurement of load (optional) and displacement 
- Low noise level and vibration free (no foundation necessary) 
- Weight app. 2.4 to 
- Dimensions of the machine : app. L=1,800mm, W=2,000mm, H=2,500mm (additional floor space for control panel and hydraulic power station) 
 
Advantages Compared to Other Existing Spring Testing Machines:  

- Low energy consumption (app. 1 to 3 kW) 
- Easy to handle 
- Long life 
- Low maintenance costs 
- Broad use 
- Spectrum testing possible 

Purpose of Testing:  
 
- Time- and cost-effective determination of fatigue of springs in normal laboratory environment. 
- Simultaneous testing of a number of resilient elements by parallel and serial arrangement. The number of springs per test position is limited by the maximum load and minimum frequency allowed (see technical specification). 
 
Typical Customers: 
 
- Manufacturers of all types of spring (research, development and quality control), e.g.: springs for railways, passenger cars, combustion engines, injection pumps, clutches, torsional dampers, two mass absorbers etc. 
 

 

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Copyright 2001 by  K.S. Roh, Shinkie Corp.,