نتایج جستجو برای: legged motion
تعداد نتایج: 216379 فیلتر نتایج به سال:
Legged robots imitating animals have become versatile and applicable in more application scenarios recent years. Most of their functions rely on powerful athletic abilities, which require the to remarkable actuator capacities controllable dynamic performance. In most experimental demonstrations, continuous hopping at a desired height is basic required motion for legged verify ability. However, ...
The factor graph framework is a convenient modeling technique for robotic state estimation and sensor fusion where states are represented as nodes and measurements are modeled as factors. In designing a sensor fusion framework using factor graphs for legged robots, one often has access to visual, inertial, encoders, and contact sensors. While visualinertial odometry has been studied extensively...
In this paper, we present an algorithm for planning and control of legged robot locomotion. Given the desired contact sequence, this method generates gaits and dynamic motions for legged robots without resorting to simplified stability criteria. The method uses direct collocation for searching for solutions within the constraint-consistent subspace defined by the robot’s contact configuration. ...
Locomotion and control of legged robots is currently an issue of active research within the robotics community. Since the legs themselves are inspired by nature, one might also look to a biological example in order to develop a scheme for controlling the legged design. This ideology of using natural examples for engineering design is referred to as functional biomimesis [KKFK01]. Two biological...
BACKGROUND Many individuals do not resume unrestricted, preinjury sports participation after anterior cruciate ligament reconstruction, thus a better understanding of factors associated with function is needed. The purpose of this study was to investigate the association of knee impairment and psychological variables with function in subjects with anterior cruciate ligament reconstruction. HY...
BACKGROUND Back extension (BE) is a strength exercise for training the dorsal trunk and hip muscles. To optimise training recommendations that avoid overloading and possible injury, the aim of this study was to determine the loading conditions and the influence of different execution forms of BE on spine, hip and knee ranges of motion (RoMs), joint moments and muscle activity. METHODS The kin...
In this study, a biological microactuator was demonstrated by closed-loop motion control of the front leg of an insect (Mecynorrhina torquata, beetle) via electrical stimulation of the leg muscles. The three antagonistic pairs of muscle groups in the front leg enabled the actuator to have three degrees of freedom: protraction/retraction, levation/depression, and extension/flexion. We observed t...
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