A Systematic Optimization Design Method for Complex Mechatronic Products Design and Development

Table 2

The design parameters sorted as the importance.

Parameter	Name	Unit	Section
	Nominal wheel radius		395–430
	Distance between backs of wheel flanges		1,351–1,355
	Wheelset roll moment of inertia	Kg⋅	500–750
	Wheelset yaw moment of inertia	Kg⋅	500–800
	Longitudinal stiffness of primary suspension per axle side		800–1,150
	Vertical damping of primary suspension per axle side	KN⋅s/m	10–30
	Longitudinal stiffness of axle box tumbler joint per axle side		5–10
	Yaw damper lateral span		2,400–2,800
	Lateral stiffness of secondary suspension per bogie side		100–200
	Vertical stiffness of secondary suspension per bogie side		120–300
	Secondary vertical damper	KN⋅s/m	20–60
	Secondary lateral damper	KN⋅s/m	30–50
	Wheelset mass		1,800–2,200
	Lateral stiffness of axle box tumbler joint per axle side		4–10
	Longitudinal stiffness of secondary suspension per bogie side		100–200
	Longitudinal stiffness of Yaw damper joint per bogie side		5–13
	Carbody roll moment of inertia	Kg⋅	70,000–120,000
	Lateral distance between the secondary suspension of the two sides of the bogie		2,400–2,500
	Carbody mass		28,000–40,000
	Lateral stiffness of primary suspension per axle side		800–1,200
	Longitudinal distance between bogie centers		17,000–18,000
	Carbody yaw moment of inertia	Kg⋅	1,100,000–1,500,000
	Vertical distance from the rail surface to the center of gravity		1,400–1,600
	Wheelbase		2,400–2,600
	Vertical stiffness of primary suspension per axle side		1,000–1,500
	Carbody pitch moment of inertia	Kg⋅	1,200,000–1,700,000
	Framework mass		2,100–3,100
	Wheelset pitch moment of inertia	Kg⋅	65–100
	Vertical damping joint stiffness per axle side		3–6