Attack angle changing device for low-speed pressurization wind tunnel slip flow test model

• Main Authors: CUI BAISHENG, XU YUE, LI SHENGWEN, QIU JUNWEN, LI CONG, YAN YONGCHANG
• Format: Patent
• Language: Chinese; English
• Published: 10.01.2020
• Subjects: MEASURING; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

The invention discloses an attack angle changing device for a low-speed pressurization wind tunnel slip flow test model. The device comprises a two-degree-of-freedom base, a grating ruler fixing base,a grating ruler, a grating ruler reading head, a grating ruler reading head fixing base, a linear guide rail supporting base, a linear guide rail, a linear guide rail sliding block, a ball screw, a tail supporting rod, a tail supporting rod fixing base, a linear driving unit and a linear guide rail fixing base. The grating ruler reading head is installed on the grating ruler reading head fixing base; one end of the tail supporting rod fixing base is fixedly connected with the tail supporting rod, and the other end of the tail supporting rod fixing base is connected with a nut of the ball screw; the linear driving unit drives the ball screw to operate; a nut of the ball screw drives the tail supporting rod to do up-down reciprocating linear motion along the screw, and the grating ruler reading head collects the di