Fig.1

Multi-level research system of civil aircraft crashworthiness

Fig.2

Simulation of outer wing

Fig.3

Internal layout of experiment piece

Fig.4

Installation of aeronautical seats

Fig.5

Installation of goods in cabin luggage rack

Fig.6

Diagram of experiment system

Fig.7

Diagram of lifting equipment

Fig.8

Weight and gravity center adjustment of experiment piece

Fig.9

Combined force measuring platform

Fig.10

Position of experiment piece on combined force measuring platform

Fig.11

Diagram of dummy arrangement

Fig.12

Installation of different types of dummies

Fig.13

Diagram of cabin floor acceleration sensors arrangement

Fig.14

Diagram of seat cushion acceleration sensors arrangement

Fig.15

Diagram of luggage rack acceleration sensors arrangement

Fig.16

Diagram of acceleration sensors arrangement for other parts

Fig.17

Ground high-speed camera arrangement

Fig.18

Diagram of mark arrangement

Fig.19

Airborne camera and light source

Fig.20

Diagram of high-speed camera arrangement

Fig.21

Local speckles drawing results

Fig.22

Multi-physical synchronous experiment framework

Fig.23

Ground impact load-time curve

Fig.24

Pitch angle-time curve of experiment piece

Fig.25

Displacement of front mark of fuselage

Fig.26

Deformation of fuselage cross-section

Fig.27

Three-dimensional resultant displacement-time curve of front mark of fuselage

Fig.28

Internal deformation of experiment piece

Fig.29

Acceleration-time curves of cabin floor

Fig.30

Normalized cabin floor acceleration peak

Fig.31

Acceleration-time curves of seat cushion

Fig.32

Normalized seat cushion acceleration peak

Fig.33

Acceleration-time curves of luggage rack connection

Fig.34

Acceleration-time curves of wing

Fig.35

Acceleration-time curves of flat tail

Fig.36

Acceleration-time curves of vertical tail

Table 1

Filtering method of dummy data type

Fig.37

Dummy response of D1-2

Table 2

Summary of dummy response

Fig.38

Normalized acceleration peak of each part of Row 10 fuselage structure

Fig.39

Acceleration-time curves of each part of Row 39 fuselage structure in Z direction

Fig.40

Comparison of average acceleration and acceleration peak in typical positions

Fig 41

Full field resultant displacement cloud map of fuselage

Fig.42

Full-field lateral displacement cloud map

Fig.43

Full-field main strain cloud map

Fig.44

Recording results of airborne high-speed camera in cabin

Fig.45

Recording results of airborne high-speed camera in front cabin door area

Fig.46

Deformation of fuselage frame section