Development of an Automated Testing System for ASTM Test Method E1007
Abstract: The use
of a tapping machine in four specific configurations is required in the determination of
the FIIC rating of a floor-ceiling assembly as prescribed in ASTM Test Method E1007, as
well as in the laboratory IIC measurements prescribed in ASTM E492. When performed with
presently available equipment, the procedure requires either two acousticians be present
-- one taking measureme... read morents in the room below while the other moves the tapping machine
to four required positions in the room above -- or one acoustician who must return to
the tapping machine on the floor above after taking each measurement below. The
objective of this work is to design an automated testing system using National
Instruments myRIO robotics components to be retrofitted to an existing tapping machine.
This allows for wireless control of the position of the tapping machine from the floor
below, allowing a single acoustician to perform the test more quickly. The prototype was
tested for accuracy with varying levels of weight and the positional error was measured
using an on-board webcam. Overall, the error in the movement of the prototype is not
statistically significant (alpha = 0.05), indicating little sensitivity of the system to
changes in weight, but requires future work for further increased
Thesis (M.S.)--Tufts University, 2017.
Submitted to the Dept. of Mechanical Engineering.
Advisor: Chris Rogers.
Committee: Bonnie Schnitta, and James Moore.
Keywords: Robotics, and Acoustics.read less