Patent ID: 11898498
Assignee: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  B | IPC F

Claim 10:
11. The method according to claim 10, wherein controlling rotation of the at least one of the shafts depending on the speed ratio is performed so as to avoid speed ratios R within an interval around an integer Ri, where Ri=2, 3, 4, 5 or 6, the interval being defined as, (
        
          
            R
            ⁢
            
              i
              2
            
          
          +
          k
        
        )
      
      2
    
    <
    R
    <
    
      
        (
        
          
            
              (
              
                
                  R
                  ⁢
                  i
                
                +
                1
              
              )
            
            2
          
          -
          k
        
        )
      
      2
    
  
  ,, wherein k is an integer and k equals 1 where Ri equals 2, 3 or 4, and k equals 2 where Ri equals 5 or 6.