[자동 설계 Template] Helical Gear 모델링 #1

관계식

/*
Pitch_diameter= Number_of_teeth * module
Transverse_diametral_pitch = Number_of_teeth / Pitch_diameter
Normal_diametral_pitch  = Transverse_diametral_pitch / COS (Helix_angle)
Transverse_pressure_angle = ATAN ((TAN (Normal_pressure_angle)) / (COS (Helix_angle)))
Normal_circular_teeth_thickness = 1.5708 / Normal_diametral_pitch
Addendum = 1 / Normal_diametral_pitch

Outer_diameter = ceil (Pitch_diameter + (2 * Addendum), 2)
whole_depth = (2.2 / Normal_diametral_pitch) + 0.002
Base_diameter = ceil (Pitch_diameter * COS (Transverse_pressure_angle), 2)
Root_diameter = ceil (Outer_diameter - (2 * Whole_depth), 2)
Tran_circular_teeth_thickness = 1.5708 / Transverse_diametral_pitch



/*
D2 = outer_diameter
D4 = pitch_diameter
D5 = base_diameter
D6 = root_diameter
p91= Number_of_teeth
D25 = Tran_circular_teeth_thickness



helical 각도 정의 커브 관계식 (원통 방정식)

GAMMA = 2 * asin ( (width*tan(helix_angle))/pitch_diameter )
z = width*( t - 0.5)
r= pitch_diameter/2
theta = GAMMA*(t -0.5)