Improved Multibody Dynamics for Investigating Energy Dissipation in Train Collisions Based on Scaling Laws

Table 2

Design of scaled model.

Number	Structure	Parameter name	Real value	Scaled value	Design in experiment
1	Cars	Car 1 mass	46.6 t	91 kg	Iron blocks; Size: cross-sectional area  mm^2
2		Car 2 mass	50.9 t	99 kg
3		Car 3 mass	56.0 t	109 kg
4		Car 4 mass	48.5 t	95 kg
5		Car 5 mass	50.0 t	98 kg
		Car 6 mass	53.3 t	104 kg
		Car 7 mass	56.0 t	109 kg
		Car 8 mass	47.2 t	92 kg
6	Buffer in head car	Compression	87 mm	10.875 mm	Rubber; Size:  mm^3
		Max. force	600 kN	9.375 kN
7	Collapsed tube in head car	Length	500 mm	62.5 mm	Two honeycombs; Size:  mm^3; Strength: 0.18 MPa
		Steady compression force of plastic deformation	600 kN	9.375 kN
8	Main energy absorbing structure in head car	Length	3000 mm	375 mm	Two honeycombs; Size:  mm^3; Strength: 0.56 MPa
		Steady compression force of plastic deformation	1100 kN	17.1875 kN
9–12	Buffer in middle car	Compression	100 mm	12.5 mm	Rubber; Size: 0 mm^3
		Max. force	1000 kN	15.625 kN
13–16	Collapsed tube in middle car	Length	500 mm	62.5 mm	Two honeycombs; Size:  mm^3; Strength: 0.44 MPa
		Steady compression force of plastic deformation	1000 kN	15.625 kN
17	Car body	Steady compression force of plastic deformation	1500 kN	23.4375 kN	A honeycomb; Size:  mm^3; Strength: 0.27 MPa