Development and experimental validation of real-time executable models of primary fly-by-wire actuators

2008 ◽  
Vol 222 (6) ◽  
pp. 523-542 ◽  
Author(s):  
G Di Rito ◽  
E Denti ◽  
R Galatolo
Keyword(s):  
Real Time ◽  
Experimental Validation ◽  
Executable Models

A Real-Time Stability Indicator for Micromilling: An Experimental Validation

2019 ◽  
Vol 7 (1) ◽  
Author(s):  
Shashwat Kushwaha ◽  
Benjamin Gorissen ◽  
Jun Qian ◽  
Dominiek Reynaerts
Keyword(s):  
Standard Deviation ◽  
Real Time ◽  
Experimental Validation ◽  
Prediction Method ◽  
Direct Consequence ◽  
Milling Process ◽  
Stability Prediction ◽  
Time Stability ◽  
Strong Candidate ◽  
Real Time Stability

In contrast to the well-established stability prediction tools, a robust real-time stability indicator is proposed for micromilling process, and it opens the possibility of online chatter avoidance based on successful detection. In this paper, a robust and easy-to-compute stability indicator is presented. This approach exploits the virtue of a stable milling process—the displacement of the vibrating tool repeats with a period of tooth passing. It has been observed that the standard deviation of the tool displacement sampled at once per tooth passing frequency is indicative of chatter, where a low standard deviation coincides with stable cutting. An increase in standard deviation is the direct consequence of an increase in asynchronous motion of the tool, coinciding with chatter. As it is also well known, this asynchronous vibration of the tool results in distinct marks on the workpiece surface. This paper presents the experimental validation of this real-time stability indicator. The ease of implementation makes the presented stability indicator a strong candidate for applications in chatter avoidance based on detection. The results are also verified against the standard stability prediction method.

Experimental Validation of High-Performance HIL-Based Real-Time PMU Model for WAMS

2020 ◽  
Vol 56 (3) ◽  
pp. 2382-2392
Author(s):  
Mahmoud Amin ◽  
Ahmed Al-Durra ◽  
Wafa Elmannai
Keyword(s):  
Real Time ◽  
High Performance ◽  
Experimental Validation

scholarly journals Trackhold: A Novel Passive Arm-Support Device

2015 ◽  
Vol 8 (2) ◽  
Author(s):  
Basilio Lenzo ◽  
Marco Fontana ◽  
Simone Marcheschi ◽  
Fabio Salsedo ◽  
Antonio Frisoli ◽  
...  
Keyword(s):  
Real Time ◽  
Upper Limb ◽  
Experimental Validation ◽  
Physical Rehabilitation ◽  
Design Approach ◽  
Mechanical Motion ◽  
Dynamic Analyses ◽  
Arm Support ◽  
Support Device ◽  
Limb Posture

This article introduces the design and the experimental validation of the Trackhold, a novel mechanical motion-tracker for upper limb physical rehabilitation. The Trackhold is based on a passively balanced mechanism that can approximately relieve the weight of the patient’s arm regardless of the position. The system features a novel kinematic architecture with large workspace and custom developed joint sensors providing accurate real-time measure of the upper limb posture. The design approach of the device, which went through kinetostatic and dynamic analyses, is presented and details on the employed mechatronic solutions are provided. A prototype of the Trackhold has been fabricated and functionally validated.

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