Numerical Analysis and Demonstration: Transmission Shaft Influence on Meshing Vibration in Driving and Driven Gears

Table 2

Main parameters of gears.

Name and code	Driven gear	Driving gear
The number of teeth ()	41	8
Surface cone angle (DELTA-)	76° 55′ 40′′ ≈ 76.93°	18° 14′ 10′′ ≈ 18.24°
Reference cone angle (DELTA-)	75° 55′ 50′′ ≈ 75.93°	12° 56′ ≈ 12.93°
Root angle (DELTA-)	70° 16′ 47′′ ≈ 70.28°	12° 2′ 35′′ ≈ 12.04°
Offset distance	30 mm (lower)
The average pressure angle (ALPHA)	21° 15′ ≈ 21.25°
Pitch circle diameter ()	170.601 mm
Equivalent radius ()	73.18 mm	20.5 mm
Mean spiral angle (BETA)	26° 46′ 25′′ ≈ 26.77°	49° 59′ 48′′ ≈ 49.9967°
Cutter diameter (BETA-)	152.4 mm
The gear width (BF)	25 mm	33.3 mm
Base circle diameter (Db)	Db =    COS(ALPHA)