Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Representative acceleration time histories for the impact testing from the pendulum apparatus shown in figure 4. The blue curve (labelled α) represents the accelerations experienced by the knot in the impact direction. The green curve (labelled β) and red curve (labelled γ) represent off-axis accelerations in the vertical and lateral directions, respectively. (Online version in colour.)
