Patent ID: 11879804
Assignee: AKTIEBOLAGET SKF
Field: Measurement (Instruments)
Classification: CPC G  F | IPC F  G

Claim 6:
7. The method of claim 1, wherein in step f. performing thermal balance of the isothermal nodes is performed in accordance with an energy balance equation for each isothermal node equal to:, H
      
        f
        ⁢
        
          
        
        ⁢
        0
      
    
    +
    
      H
      
        
          1
          -
          O
        
        ,
        c
      
    
    +
    
      H
      
        
          2
          -
          0
        
        ,
        v
      
    
    +
    
      H
      
        
          3
          -
          O
        
        ,
        c
      
    
    +
    
      H
      
        
          4
          -
          O
        
        ,
        c
      
    
  
  =
  
    
      m
      0
    
    ⁢
    c
    ⁢
    
      
        ∂
        T
      
      
        ∂
        t
      
    
  

where, in addition to the indices 0, 1, 2, 3, 4 of the different nodes:
m is the mass of the lubricating grease
c is the conductive heat transfer coefficient
v is the convective heat transfer coefficient
T is the temperature at the generic calculation instant
t is the time at the generic calculation instant
Hf0 is the heat generated by friction in node 0
H (1-0, c) is the conductive heat exchange between nodes 0-1
H (2-0, v) is the convective heat exchange between the nodes 0-2
H (3-0, c) is the conductive heat exchange between the nodes 0-3
H (4-0, c) is the conductive heat exchange between nodes 0-4.