Development of a cable suspension and balance system and its novel calibration methods for effective wind tunnel tests

Cable Suspension and Balance System with Low Support Interference and Vibration for Effective Wind Tunnel Tests

“…The last row in Table 1 presents the motion control accuracy of the CSBS using the root mean square errors (RMSE). This statistical data confirm that the developed CSBS has accurate and precise motion control capabilities [32].…”

“…It requires mechanical/electrical hardware and integrated software. The CSBS consists of six sub-systems: a mainframe for the cable suspension device, a motion control system, a motion tracking system that acquires the 6-DOF motion data, a load measurement system, integrated control software, and a test model [32]. The CSBS mainframe consisted of commercial aluminum profiles to support all ( 11)…”

“…The CSBS was designed to act as a balance for aerodynamic load measurements and as a motion control device in wind tunnel tests. Several loading tests were carried out on the CSBS prototype to investigate the load measurement performance, including its accuracy [32].…”

“…This mechanism made it possible to compare the load from the reference balance with that from the cable balance. When any test load from outside acted on the loading adaptor, it was measured by the six component balance in the form of three forces and three moments and was simultaneously transmitted to the eight load cells, which were mechanically connected through cables [32].…”

“…During the loading tests, arbitrary loads were applied to the loading adaptor for 40 s, with various positions and attitudes, to acquire unsteady load data. The detailed loading sequence was presented in our previous paper, reference [32]. To observe the load measurement performance clearly and quantitatively, several statistical analyses were carried out with the loading test data.…”