Kinematic analysis and simulation of ultrasonic testing manipulator

Ultrasonic testing for these workpieces with complex shapes is still a challenge in NDT filed. In order to address this problem, this paper provide an effective solution for curved surface scanning using Staubli TX90XL manipulator with six freedom degrees. Here an arm-wrist separateness method is adopted to solve the inverse of manipulator and a shortest distance rule is used to optimize the inverse solutions. Furthermore, we have developed a 3D application software to simulate the ultrasonic trajectory planning for complex shape specimens. Finally, the validity of this scanning method is verified by the C-scan results of the specimen with a curved surface.