Singularity-free dynamic equations of vehicle–manipulator systems

2010 ◽  
Vol 18 (6) ◽  
pp. 712-731 ◽  
Author(s):  
Pål J. From ◽  
Vincent Duindam ◽  
Kristin Y. Pettersen ◽  
Jan T. Gravdahl ◽  
Shankar Sastry
Keyword(s):  
Dynamic Equations ◽  
Free Dynamic

scholarly journals Singularity-Free Dynamic Equations of AUV-Manipulator Systems

2010 ◽  
Vol 43 (16) ◽  
pp. 31-36 ◽  
Author(s):  
Pål J. From ◽  
Kristin Y. Pettersen ◽  
Jan T. Gravdahl
Keyword(s):  
Dynamic Equations ◽  
Free Dynamic

scholarly journals Singularity-free dynamic equations of spacecraft-manipulator systems

2011 ◽  
Vol 69 (11-12) ◽  
pp. 1057-1065 ◽  
Author(s):  
Pål J. From ◽  
Kristin Ytterstad Pettersen ◽  
Jan T. Gravdahl
Keyword(s):  
Dynamic Equations ◽  
Free Dynamic

Recognition of Neurons Impulses with the Use of Nonlinear Dynamic Equations

2001 ◽  
Vol 33 (5-8) ◽  
pp. 10
Author(s):  
Tatyana I. Aksenova ◽  
Igor V. Tetko ◽  
Olga K. Chibirova ◽  
Alexandro Villa
Keyword(s):  
Nonlinear Dynamic ◽  
Dynamic Equations ◽  
Nonlinear Dynamic Equations

Kinematic contribution and synchronization of the trunk, hip, and knee during free-dynamic lifting

2003 ◽  
Vol 3 (2) ◽  
pp. 99-108
Author(s):  
Kermit G. Davis ◽  
Riley E. Splittstoesser ◽  
William S. Marras
Keyword(s):  
Whole Body ◽  
Knee Height ◽  
Squat Lifting ◽  
The Difference ◽  
Free Dynamic ◽  
Body Lifting ◽  
And Task ◽  
Kinematic Contribution ◽  
Stoop Lifting

Although there have been numerous studies evaluating the difference between stooped and squat lifting styles, there remains a lack of understanding of whole body kinematics during unrestricted lifting. The current study evaluated nine males and nine females while lifting two box weights (9.1 kg, 18.2 kg) from five origins below the waist (0, 19, 38, 57, and 76 cm above the floor) and from three task asymmetries (sagittally symmetric, 45° clockwise, 45° counter-clockwise). While the lifting style was significantly influenced by the height of lift origin and to a lesser extent gender, box weight, and task asymmetry, none of the conditions resulted in pure squat or stoop lifting style. However, for lifts above knee height, the lifting style resembled more of a stoop lift while lifts originating below knee height were more of a squat lift. As the origin moved closer to the floor, participants relied more on their hips to accomplish the sagittal flexion but overall adopted a more coordinated whole-body lifting style. All together, as more sagittal flexion is required, more joints are relied upon in a more coordinated effort. The current study indicates that caution needs to be exercised when applying results of pure squat or pure stoop lifting studies to free-style (realistic) lifting.

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