flender bipex H2-DH-27-D Helical gear units H2

Flender/Flender Gear Units/Helical gear units H2

alculated according to Formula (4.: xrelL/C3 /C3 Vx/C3 /C1 =2 /C3 xrel min 0 /C3 ,/C3 Rsee Formula 4:3;4:3 The fading function Lis likewise determined empirically, and looking from the tooth tip distinction is drawn between the acute angled side of the tooth face and the obtuse angled side: forSt>0:fLxrel 8:2x5 rel:6x4 rel1x3 relx2 rel0:3xrel4:3 forSt>0:fLxrel 1:0/C1xrel 4:3 The size function Gis determined as: fGSt 0:6 _3 St1:4 _2 St1:1 _ St0:0 4:3 where: _ Stj jfor loading on the acute angled side _ Stj jfor loading on the obtuse angled side _ Stin radians The inuence numbers may therefore be calculated as: aijE/C1qij 4:3.4 Stress Analysis 1 bending inuence function, Formula (4. aijinuence number (describes the inuence of force Fnjacting at point jon the deection at point ) qijcompliance of tooth segment of width b1m mnaccording to Formula (4. at point ias result of loading on the lever arm at point Compliance The elastic compliance () is understood as the sum of the effects of normal force on the tooth and the adjacent part of the gear body. During calculation, it is rst differentiated as bending deection () of the tooth, shear deection () of the tooth and deection of that part of the gear body () adjacent to the tooth. Deformation due to Hertzian contact attening is treated separately. qqBqSqR 4:3 Bending compliance Bis determined on the basis of the equation for the deection curve of trapezoidal-shaped beam of variable cross-section (cf. [ WEBE5 ]). In the case of hypoid gears, the tooth prole becomes asymmetrical and an imaginary mid-line of the tooth is tilted by the limit pressure angle lim(see Sect. 2.2.5.3 ). In calculating the torque at section given by distance , it is necessary to add the bending component arising from the non-centric compressive force component of the normal force on the tooth (Fig. 4.. Fig. 4.3 Determination of boundary deection using the mirroring method (valid, by analogy, for tooth root stress