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A Composite Robust Fault-Tolerant Control Scheme for Limited-Thrust Spacecraft Rendezvous in Near-Circular Orbits
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: External perturbations and actuator faults are two practical and significant issues that deserve designers' considerations when synthesizing the controllers for spacecraft rendezvous. A composite robust fault-tolerant ...
A Geometric Approach to Obtain the Closed-Form Forward Kinematics of H4 Parallel Robot
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: To obtain the closed-form forward kinematics of parallel robots, researchers use algebra-based method to transform and simplify the constraint equations. However, this method requires a complicated derivation that leads ...
Constructing Process Models of Engine Blade Surfaces for Their Adaptive Machining: An Optimal Approach
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In a new blade manufacturing process, manufacturers precisely forge blade billets with the blade suction and the pressure surfaces within tolerance. After that, only two blade edge billets should be machined to the leading- ...
Uncertainty Propagation and Assessment of Five-Axis On-Machine Measurement Error
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: As an important technology of adaptive machining, on-machine measurement (OMM) is always used to measure the shape of the to-be-cut surface. Due to the multi-source errors in an OMM system, the confidence of the measurement ...
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