| 词汇 | example_english_gait |
| 释义 | Examples of gaitThese examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. Thus, it is suitable for online implementation to generate optimal 0 nearoptimal gaits. Therefore, in lower-geared gaits stability is not the main control on locomotion as a large range of phase differences are feasible. The use of statically stable gaits enables their control to be simplified. Different gaits exhibit different kinematic and dynamic behaviors, which are crucial to the application environment. The walking robot model includes the trajectory planning, for several different periodic walking gaits, the kinematics and the dynamics. In quadruped gaits, two legs are always in the transfer phase. First law helped in stabilizing (asymptotically) from the quasi-periodic gaits to periodic gaits of arbitrary period. The body is supported by three legs during the key phases of these two gaits. The optimal gaits are experimentally realized on a biped robot. There are lots of successful results, but the gaits seem not to be so natural. In this perspective, there is not any difference between the locomotion gaits since they present similar curves having only a different phase. Addressing this classic conjecture with experiments requires comparing walking and running with many other strange and unpractised gaits. Several different gaits have been researched from different legged animals to determine the simplest technique to maneuver the hexapod mobile robot. A number of these "accidents of nature" were discovered in various laboratories in mice displaying distinctive gaits or abnormal brain growth. Design of a genetic-fuzzy system for planning crab gaits of a six-legged robot. Using the exhaustive search11 on the graph, we are able to find all possible gaits with the same initial condition. Several different gaits were implemented16 (quadruped crawl forward, backward, side walk to the left, to the right, turning motion, motion over inclination, motion over stairs). In addition, the gaits are also described by some descriptors such as the step length, period, average speed and energy inefficiency. Moreover, the gaits generated by the traditional methods may be far from being optimal. From a theoretical point of view, turning gaits are the most general. The generation algorithms for various gaits are investigated, namely, singlestride gaits with backward motion and fault-tolerant features, and multi-stride gaits with standing wave feature. Locomotion gaits are generated based on the wave theory. In higher-geared gaits stability becomes increasingly important in determining optimal gaits. 2 training data to enhance the generalization capabilities of the learned gaits, which is a tedious task. The basic concepts behind walking gaits and the description/integration of the robot's servomotors are described in the following paragraphs. Due to the reduced workspace of a failed leg, fault-tolerant gaits have limitations in their mobility. In particular, periodic gaits are derived from the proposed scheme with formulations of the stride length and stability margin. The analysis showed that no more coupling relations exist between effort wrench components of the realistic torso during several walking gaits. Comparing the orientation and the magnitude of reaction force in human walking, a good coincidence between the generated gaits and the human counterpart is noticed. Based on these ideas, several authors developed optimization studies of artificial locomotion structures and of their gaits, based on energy criteria. Moreover, from this viewpoint the forward and backward gaits pose similar requirements. What follows will show that the generated gaits results are in accordance with the objectives and constraints. Apart from that, there is not much difference between the gaits of the two models. At higher-geared gaits there is less constraint on leg crossing as each leg spends less time in contact with the substrate. Numerical simulations concerning slow and fast optimal gaits are presented and discussed. The walking gaits are generated based on the optimal parameters. The biped walking gaits are developed using the parameters. Conceptual robots with different number of legs and different gaits are employed to study both the capability and limitation of the model. Not only periodone walking gaits can be found, also period-k walking gaits. Our objective is to obtain cyclic gaits for a biped robot. The gaits exploit the constrained nature of a robot's interaction with its environment to generate net body motion. The locomotion of the robot is through a series of cyclic actuator actions to change the shape of the robot termed gaits. An experimental inchworm robot platform is designed and constructed for further investigation of the dynamic characteristics of various gaits and their interaction with the environment. Triple-stride gaits and even n-stride gaits can be defined similarly. Further investigation on the dynamic characteristics of different gaits will be necessary. Similar to the double-stride gaits, the initial condition usually cannot start the standing wave pattern. Thus, how to produce useful gaits becomes an important problem. Single-stride gaits exhibit faulttolerant and real-time computation features that are necessary in actual applications. Nevertheless, based on the augmented gripper and extensor concept, we propose the following strategy to generate standing wave gaits. Because of the programmed delay and the sufficient gripping force, sing-stride gaits can be treated as quasi-static locomotion. Five different gaits can be produced with identical initial conditions. After it is examined, the alternative leg structure with a backwards knee, common in birds, and the adoption of different periodic locomotion gaits is presented. They reported the sufficient conditions for steady and stable gaits, when the hopper was activated by motor pattern (pre-defined input signal). The gaits generated remained stable even for fairly obvious changes in both step length and stride frequency. In the following section, the dynamic simulations for the generated stable locomotion with human-like gaits will be presented. However, these biped robots have mechanical gaits and require great amounts of energy. The optimal walking gaits are experimentally realized on a biped robot. The machines are locally self-navigated avoiding obstacles and changing the gaits according to the surface conditions. If we decrease k below 0.218, we cross a bifurcation to asymmetric gaits, first encountering two-period solutions and for lower k even higher-period solutions. The kinematic condition for the existence of fault-tolerant gaits is derived for straight-line walking of a hexapod robot on even terrain. We verify that for the existence of fault-tolerant gaits, the configuration of the failed leg must be within a prescribed range of kinematic constraints. When multistride gaits are initiated, the robot may slip due to the insufficient gripping force compared to the impulsive force produced by the extension and contraction of the actuators. As the number of segments in the robot increases, the types of gaits increase as well. Turning gaits of a quadrupedal walking machine. Effects of parameter variation on the gaits of passive walking models 13. An algorithm for generating fault-tolerant gaits is described and, especially, periodic gaits are presented for forward walking of a hexapod robot with a locked joint failure. In this section, we show that there is a range of kinematic constraints which the configuration of a failed leg should satisfy for guaranteeing the existence of fault-tolerant gaits. Among various types of turning gaits, spinning gaits, in which the turning center is at or closed to the center of gravity, are concerned in this paper. In particular, fault-tolerant periodic gaits are proposed for a hexapod robot to have post-failure tripod walking over an even terrain with crab gaits and turning gaits, respectively. Simulation and experimental results for the gaits of the prototype with different feet. Effects of parameter variation on the gaits of passive walking models cells, respectively. The traditional approach13,15-17 is the generation of walking gaits by means of generating joint-trajectories and controlling each joint for trajectory-tracking so as to mimic human walking. Simulation results show that the walking rhythm changes with changes in h and the resulting gaits were confidently stable for variation of h within the range of 2-6. Nevertheless, to use these types of gaits, the initial states of the extensors must be paired up to enable the subsequent motion that may not be available all the time. In-phase gaits are less stable than out-of-phase gaits; an opposite phase difference of 0.5 (leg pairs half a step cycle out of phase) is most advantageous in terms of stability. Therefore, in lower-geared gaits the variation in the number of propulsive legs and the effects of leg crossing are the most important parameters controlling optimal walking. A connectionist central pattern generator for the aquatic and terrestrial gaits of a simulated salamander. The gaits defined include the impact phase. However, it is necessary when the torque is an optimised variable, to solve the inverse dynamic problem to find the joint coordinates in order to insure cyclic gaits. Although our attention has been focused on the locomotion in the sagittal plane using periodic locomotion gaits, certain aspects of locomotion are not necessarily captured by the proposed measures. With this approach, stable bipedal walking gaits can be generated which also allows adjustments of the step length during walking, the walking rhythm, and adaptation to the environment. While the previous study5 investigated constrained motions of a failed leg in detail, it did not take into account kinematic constraints necessary for the existence of fault-tolerant gaits. Finding this relationship is important for specifying the compatible initial joint angles when gait parameters are pre-selected. Other important issues, which need to be considered in gait design, include system stability and repeatability of gait. In the simulation, the wave gait with leg order 4-2-3-1 is implemented. The gait command is in fact a bit string of "0" and "1" indicating the "off" and "on" states of the grippers and extensors. Therefore, the gait generator can communicate with the robot controller close to their nominal data transmission rate. However, the absence of condition on the impact velocity leads to a high value which is much greater than the average speed of the gait. The equation of the impact is the same as in the walking gait case (11), and the velocity just after impact must satisfy equation (12). On-line gait generation and gait change can be achieved through single-stride gaits. Incorrect use can therefore spoil a horse's gaits, which would then require weeks of retraining. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A stable gait thus represents a periodic limit cycle of the system. To do this, they developed methods to enhance the desired high action gaits to levels greater than that produced by traditional training methods. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The second approach uses a multifaceted intervention that tackles attributes like strength, balance and gait. The turning-gait generation problem is solved using both the approaches mentioned above. In turning-gait mode, translation as well as rotation of the vehicle are to be considered. The validity of the proposed gait algorithm is proved by simulations. She had been feeling well until the day of admission, with neither neurologic symptoms nor difficulties with her gait, vision, or speech. The breed ideal is strong, harmonic and friendly saddle pony with a correct structured anatomy and good gaits. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A typically waddling gait can be observed, and women will often support themselves on furniture or rails to reduce weight-bearing. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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