| 词汇 | example_english_bipedal |
| 释义 | Examples of bipedalThese 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. Increasingly complex prototypes4 show that passive dynamic walking results in a particularly elegant and natural bipedal gait. These investigations provided important insights into the mechanics of bipedal walking. Let us mention that many bipedal walking machines have been designed during the last two decades. The simplest bipedal machines are passive dynamic9,12,13,17,18 and ballistic11,15,19 walking models that have only few degrees of freedom. Section 2 first describes two bipedal robots whose simulation models are used to validate the control algorithms developed in this research. The importance of this research lies within its connection to human gait, as well as to the development of energyeff cient bipedal robots. The complexity of bipedal robot control is mainly due to the nonlinear dynamics, unknown environment interaction and limited torque at the stance ankle. Recent work with human infants and nonhuman primates suggests that manual preference may have evolved closely after the emergence and adoption of upright bipedal locomotion. Genetic algorithm-based optimal bipedal walking gait synthesis link ends making the inertia tensor of the links zero. Only a bipedal posture frees both hands, allowing them to assume differential functions and thereby strengthen a lateral bias. The disadvantages of this trajectory-control approach include its inefficiency in actuating the bipedal walking and the unnatural looking of the gait. Section 2 presents the heuristics of the frontal plane motion for bipedal walking. The human true pelvis is adapted to our bipedal posture. Such an understanding will have a direct impact on better design of prostheses and on the active control aspects of bipedal robots. From this standpoint, the evolutionarily advantaged functions of divided attention, upright bipedal ambulation and opposable thumbs can be seen as vulnerable. From an evolutionary perspective, these findings suggest that right-handedness may have emerged first, following the adoption of bipedal locomotion, with speech emerging later. An alternative approach has been proposed where the geometric evolution of the bipedal configuration is controlled and not the temporal evolution [16], [17]. Figure 6 shows a stick diagram of the five-link bipedal model walking on flat ground. The robot is the 5-link planar bipedal robot17 with an impulsive actuator added to each foot. In this paper, we compare two approaches to controlling and quantifying bipedal stepping of spinal rats with robots. The primate pelvis has evolved to accommodate bipedal posture, while the cranium has expanded rapidly to accommodate the enormous growth of the human brain. Most research in this field has been done on humanoid robots, which are bipedal robots having the same locomotive structure as humans. Another challenge for balancing bipedal standing is the lack of a single quantitative criterion and an effective tool for stability analysis. Regardless the techniques, side-to-side rocking is needed for bipedal walking, but it must be controlled carefully. All bipedal robots are complex dynamic systems and this gives a couple of challenges for the monitoring of a walking robot. 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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