Miner’s Rule

- October 4, 2023 at 7:44 pm
  
  louiee1907
  Subscriber
  
  Hi,
  I calculated the life and damage in nCode DesignLife, and there is damage result for every node.
  Total accumulated damage = 0.00027
  From Miner's Rule 1/0.00027 = 3703, so
  I have 4 hours of data which is acceleration-time, and 3703*4 = 14812 hours life
  This calculating true or not?
- October 9, 2023 at 4:34 pm
  
  danielshaw
  Ansys Employee
  
  DesignLife is reporting 0.00027 damage produced by the applied loading, which is equivalent to 3703 repeats of the applied loading. If the applied loading represents 4 hours of operation, then the predicted fatigue life is 3703 repeats per 4 hours of operation, which can be converted into 4*3703 per hour of operation.
  - October 9, 2023 at 8:14 pm
    
    louiee1907
    Subscriber
    
    Thank you so much