## 5 Simulation Analysis of Traction Dynamics of the Space Flexible Web
### Simulation Comparison Analysis  
By observing traditional rope web, topology rope web, and new space flexible web in the \(Z\)-direction displacement and speed curve of flexible web twine we found that spread and velocity in the process of three kinds of flexible web peak displacement are at the bottom of the web feature point B, therefore, the B points near the exact location of the unit were analyzed, and the rope tension variation curve is shown in Figure 26, as follows:  
By analyzing the rope segment tension curves in Figure 26, it can be seen that all three kinds of rope webs present irregular oscillatory changes. The rope segment tension amplitude of traditional rope webs is >topological rope webs >new space flexible webs. The maximum tension of traditional rope webs is 67,636.055 N, while that of topological rope webs is 39,191.887 N. The maximum tension of the rope segment of the new space flexible mesh is 34,273.666 N.  
Rope webs with three different flexible structures are typical multi-body systems that experience a large range of motion and large deformation coupling, and the internal  
Figure 26: Tension curves of the bottom rope segments of three flexible rope webs. Figure 25: Change of characteristic point displacement of new space flexible web. constraints of the systems are complex. After the initial speed of the traction body is set, the unfolding process of the flexible rope web in the air is uncontrolled. By comparing and analyzing the dynamic evolution process of the traditional rope web, topological rope web, and new space flexible web, the following conclusions can be obtained:  
1. In terms of the unfolding time of the rope web, the unfolding time of the conventional flexible rope web is about 0.12 s, and the unfolding time of the topological rope web is about 0.14 s. The unfolding time of the new space flexible web is longer than the above two kinds of flexible rope webs. In the example, the new space flexible web needs about 0.162 s from the beginning to the entire unfolding state. It indicates that the new space flexible web has a longer time to maintain the \"concave\" posture suitable for interception than the traditional and topological rope webs and has better shape preserving property. In the actual process of intercepting the incoming target, the new space flexible web intercepts the space-time window more significantly, and the fault tolerance rate is higher. 2. In terms of the traction body and the motion of the flexible web, the topological structure of the new space flexible web is similar to that of the topological rope web. The displacement of the two webs is more significant than that of the conventional flexible web, and the flight height of the two webs is higher, up to 11.624 m. In addition, under the same simulation parameter settings, the displacement of the topological rope web and the new space flexible web is at a slowly rising plateau before 0.5 s, when the traditional rope web has begun to fall significantly. 3. In the changing aspect of the web type of the rope web, as a kind of flexible rope web with a more complex structure, the new type of space flexible web changes evenly during the expansion process, and the new type of space flexible web has the same jitter expansion rule as the traditional rope web and topological rope web, no web twine coil, and mixed and disorderly phenomena occurred. The new type of space flexible web canopy on the stability of the web type and EFP warhead fixed support play an important role as it can ensure that the EFP warhead can intercept the incoming projectile body in an optimal posture under the appropriate space-time window. 4.