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BS ISO 9084:2000 Calculation of load capacity of spur and helical gears. Application to high speed gears and gears of similar requirements, 2003
- Calculation of load capacity of spur and helical gears�— Application to high speed gears and gear...
- Contents Page
- Foreword
- Introduction
- Calculation of load capacity of spur and helical gears�— Application to high speed gears and gear... [Go to Page]
- 1��� Scope
- 2��� Normative references
- 3��� Terms and definitions
- 4��� Application [Go to Page]
- 4.1��� Design, specific applications [Go to Page]
- 4.1.1��� General
- 4.1.2��� Gear data
- 4.1.3��� Pinion and pinion shaft
- 4.1.4��� Wheel blank, wheel rim
- 4.1.5��� Materials
- 4.1.6��� Lubrication
- 4.2��� Safety factors
- 4.3��� Input data
- 4.4��� Numerical equations
- 5��� Influence factors [Go to Page]
- 5.1��� General
- 5.2��� Nominal tangential load,
- 5.3��� Non-uniform load, non-uniform torque, non-uniform power
- 5.4��� Maximum tangential load,
- 5.5��� Application factor, [Go to Page]
- 5.5.1��� General
- 5.5.2��� Method A — Factor
- 5.5.3��� Method B — Factor
- 5.6��� Internal dynamic factor, [Go to Page]
- 5.6.1��� General
- 5.6.2��� Calculation of the parameters required for evaluation of [Go to Page]
- 5.6.2.1��� Calculation of the relative mass,
- 5.6.2.2��� Determination of the resonance running speed (main resonance) of a gear pair
- 5.6.2.3��� Gear accuracy and running-in parameters,
- 5.6.2.4��� Running-in allowances,
- 5.6.3��� Dynamic factor in the subcritical range (
- 5.6.4��� Dynamic factor in the main resonance range (
- 5.6.5��� Dynamic factor in the supercritical range (
- 5.6.6��� Dynamic factor in the intermediate range (
- 5.7��� Face load factor, [Go to Page]
- 5.7.1��� General
- 5.7.2��� Values required for the calculations [Go to Page]
- 5.7.2.1��� Assumed mesh misalignment based on manufacturing tolerances
- 5.7.2.2��� Running-in allowance
- 5.7.3��� Determination of the face load factor [Go to Page]
- 5.7.3.1��� Gears with unmodified helices
- 5.7.3.2��� Gears with modified helices
- 5.8��� Face load factor,
- 5.9��� Transverse load factors,
- 6��� Calculation of surface durability (pitting) [Go to Page]
- 6.1��� Basic formulae [Go to Page]
- 6.1.1��� General
- 6.1.2��� Determination of contact stress,
- 6.1.3��� Determination of contact stress,
- 6.1.4��� Determination of permissible contact stress,
- 6.1.5��� Safety factor for surface durability,
- 6.2��� Single tooth pair contact factors,
- 6.3��� Zone factor,
- 6.4��� Elasticity factor,
- 6.5��� Contact ratio factor, [Go to Page]
- 6.5.1��� General
- 6.5.2��� Transverse contact ratio,
- 6.5.3��� Overlap ratio,
- 6.6��� Helix angle factor,
- 6.7��� Allowable stress numbers (contact),
- 6.8��� Influences on lubrication film formation, [Go to Page]
- 6.8.1��� General
- 6.8.2��� Lubricant factor,
- 6.8.3��� Velocity factor,
- 6.8.4��� Roughness factor, [Go to Page]
- 6.8.4.1��� Calculation of
- 6.8.4.2��� Roughness values
- 6.8.4.3��� Material dependent index,
- 6.9��� Work hardening factor,
- 6.10��� Size factor,
- 7��� Calculation of tooth bending strength [Go to Page]
- 7.1��� Basic formulae [Go to Page]
- 7.1.1��� General
- 7.1.2��� Determination of tooth root stress,
- 7.1.3��� Determination of permissible tooth root stress,
- 7.1.4��� Safety factor for bending strength,
- 7.2��� Form factor, [Go to Page]
- 7.2.1��� General
- 7.2.2��� Parameters required for the determination of
- 7.2.3��� Internal gearing
- 7.2.4��� Parameters for virtual gears
- 7.3��� Stress correction factor,
- 7.4��� Helix angle factor,
- 7.5��� Tooth-root reference strength,
- 7.6��� Relative notch sensitivity factor,
- 7.7��� Relative surface factor, [Go to Page]
- 7.7.1��� General
- 7.8��� Size factor,
- Tooth stiffness parameters [Go to Page]
- A.1��� General
- A.2��� Single stiffness [Go to Page]
- A.2.1��� Calculation of
- A.2.2��� Theoretical single stiffness,
- A.2.3��� Gear blank factor,
- A.2.4��� Basic rack factor,
- A.2.5��� Additional information
- A.2.6��� Mesh stiffness,
- Special features of less common gear designs [Go to Page]
- B.1��� Dynamic factor [Go to Page]
- B.1.1��� General
- B.1.2��� Calculation of the relative mass of a gear pair with external teeth
- B.1.3��� Resonance speed determination for less common gear designs
- B.1.4��� Idler gears
- B.2��� Face load factors
- Guide values for application factor, [Go to Page]
- C.1��� Establishment of application factors
- C.2��� Approximate values for the application factors
- Bibliography [Go to Page]