Solution no 6 (pressure angle α = 22˚)

Lower bound Lb = [as same as above]

Upper bound Ub = [as same as above]

Initial condition X0 = [as same as above]

1^st pinion

2^nd pinion

3^rd pinion

4^th pinion

Constant pinion

Rear pinion

Module m

3.4442

3.3696

3.2271

2.8267

3.6169

2.7136

Number of teeth z

14.000

19.000

19.000

19.000

19.000

19.000

Helix angle β

32.000

30.7598

30.7514

30.7284

30.7745

31.7109

Face width b

34.000

33.000

32.000

32.000

32.000

44.000

Pressure angle α_t

25.4740

25.1815

25.1796

25.1743

25.1849

25.4043

Centre distance a

80.000

79.9806

79.9790

79.9735

79.9831

79.9988

Transverse contact ratio ε_α

1.3862

1.4086

1.4150

1.4321

1.3970

1.4295

Overlap ratio ε_β

1.6651

Bending stress σ_F

987.300

817.700

836.200

680.000

377.000

1033.100

Safety factor for bending stress S_F

1.0128

1.2230

1.1958

1.4706

2.6522

0.9680

Contact stress σ_H

1045.400

888.300

828.700

801.000

622.900

1312.500

Safety factor for contact stress σ_H

1.3392

1.5761

1.6894

1.7478

2.2475

1.0667