Page 32 - BPW axles with air suspension Series O SL AL
P. 32

BPW axles with air suspension






          6.5        Installing

                                                               The air bag offset must be considered. The bend-
                                                               ing forces (Mb) generated by the offset (V) must
                                                               be counteracted by adequate gusset plates or
                                                  A
                 A                                             crossmembers.

                                                               Bending moment from air bag M   bLB  = F LB  x V
                                                 F
                                                  LB
                                             V

                                                               BPW 30                    BPW 36

                                                               BPW 30:                   BPW 36:
                                                               Specific air bag pressure  Specific air bag pressure
                                                               0.00023 bar/N             0.000156 bar/N
                                                               (at ride height)          (at ride height)
                 A                                 A
                                                                           p                         p
                                                               F LB  =                 (N)  F LB  =                   (N)
                                                                        0.00023                   0.000156
                                                               V = 60 mm                 V = 80 mm


                                                 F
                                                  LB           F LB  =  Force of air bag (N)
                                             V                 p     =  Air bag pressure (bar)
                                                               V     =  Air bag offset













































          32                                                                                BPW-EA-Luft 1023701e
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