Table 3 Optimized structural parameters of the feed cabin system.

From: Structural optimization and performance analysis of the cable-driven fine adjustment mechanism for the new FAST feed cabin

Parameter description

Symbol

Value

Vertical offset between truss center and receiver platform center (along \(Z_B\))

\(p_z\)

\(-2.5\;\textrm{m}\)

Winch distribution radius

\(r_1\)

\(3.5\;\textrm{m}\)

Anchor point distribution radius

\(r_2\)

\(2.5\;\textrm{m}\)

Adjacent winch angle

\(\varphi _1\)

\(2^\circ\)

Adjacent anchor point angle

\(\varphi _2\)

\(6^\circ\)