scholarly journals Dynamic Performance Evaluation of a 2-DoF Planar Parallel Mechanism

10.5772/54731 ◽  
2012 ◽  
Vol 9 (6) ◽  
pp. 250 ◽  
Author(s):  
Hao Qi ◽  
Guan Liwen ◽  
Wang Jianxin
Keyword(s):  
Performance Evaluation ◽  
Parallel Mechanism ◽  
Dynamic Performance

scholarly journals Dynamic performance evaluation with deadlines: The role of commitment

2018 ◽  
Vol 66 (2) ◽  
pp. 377-422
Author(s):  
Chia-Hui Chen ◽  
Junichiro Ishida
Keyword(s):  
Performance Evaluation ◽  
Dynamic Performance

scholarly journals Parallel Robot Translational Performance Evaluation through Direction-Selective Index (DSI)

2011 ◽  
Vol 2011 ◽  
pp. 1-14 ◽  
Author(s):  
G. Boschetti ◽  
R. Rosa ◽  
A. Trevisani
Keyword(s):  
Performance Evaluation ◽  
Performance Index ◽  
General Framework ◽  
Dynamic Performance ◽  
Parallel Manipulators ◽  
Parallel Robot ◽  
Performance Indexes ◽  
Definition Of ◽  
Performance Variations

Performance indexes usually provide global evaluations of robot performances mixing their translational and/or rotational capabilities. This paper proposes a definition of performance index, called direction-selective index (DSI), which has been specifically developed for parallel manipulators and can provide uncoupled evaluations of robot translational capabilities along relevant directions. The DSI formulation is first presented within a general framework, highlighting its relationship with traditional manipulability definitions, and then applied to a family of parallel manipulators (4-RUU) of industrial interest. The investigation is both numerical and experimental and allows highlighting the two chief advantages of the proposed DSIs over more conventional manipulability indexes: not only are DSIs more accurate in predicting the workspace regions where manipulators can best perform translational movements along specific directions, but also they allow foreseeing satisfactorily the dynamic performance variations within the workspace, though being purely kinematic indexes. The experiments have been carried out on an instrumented 4-RUU commercial robot.

Dynamic performance evaluation of an inspection wagon for urban railway tracks

Measurement ◽  
2021 ◽  
Vol 170 ◽  
pp. 108704
Author(s):  
Chao Chang ◽  
Liang Ling ◽  
Shiqian Chen ◽  
Wanming Zhai ◽  
Kaiyun Wang ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Dynamic Performance ◽  
Railway Tracks

scholarly journals Dynamic Performance Evaluation of PV Integration

2018 ◽  
Vol 322 ◽  
pp. 072011
Author(s):  
Ruilin Gao ◽  
Anwen Jiang ◽  
Hongjin Chen
Keyword(s):  
Performance Evaluation ◽  
Dynamic Performance

scholarly journals Dynamic Performance Evaluation of Blockchain Technologies

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 217762-217772
Author(s):  
Zhongbao Zhou ◽  
Ruiyang Li ◽  
Yuan Cao ◽  
Long Zheng ◽  
Helu Xiao
Keyword(s):  
Performance Evaluation ◽  
Dynamic Performance

Performance Evaluation of a Portable Restraint for a Motor Coach Occupant in a Rollover Accident

2009 ◽  
Author(s):  
Chandrashekhar K. Thorbole ◽  
Stephen A. Batzer ◽  
David A. Renfroe
Keyword(s):  
Performance Evaluation ◽  
Head Injury ◽  
Computational Model ◽  
Rational Solution ◽  
Dynamic Performance ◽  
Full Scale ◽  
Motion Data ◽  
Fatal Injuries

A quarter roll of a motor coach could result in fatal injuries to its occupants due to ejection and occupants striking each other and striking the bus interior. The best rational solution to prevent ejection and serious head injury is to restrain the occupants to their seats. This study addresses the dynamic performance of the portable restraint in a rollover accident and compares it to the conventional restraint. The biodynamic code MADYMO is used to analyze and compare the occupant kinematic with the portable restraint and the conventional restraint. The full scale bus rollover motion data with different ATD’s (Anthropomorphic test devices) placed at different locations on the bus shall be used to prescribe motion to this MADYMO model. This study demonstrates the success of the portable restraint in preventing ejections if the lateral belt used for securing the system to the seat does not slip. The study further demonstrates the possibility of improving the portable restraint performance using computational model.

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