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Manufacturing machinery and processes utilized in High Mix Manufacturing (HMM) is by and large an outcome of long learning cycle; often times is the product resulted from companies internal development only, replication, imitation or simply a copy, it can also be obtained by external acquisition, combination/permutation and selection of multiple capabilities and know-how. The investments in manufacturing...
Welding robots with strong robustness and high-precision trajectory tracking control play an important role in performing automatic welding processes under complex dynamic environments. This paper proposes a new variable structure control (VSC) based on multi-sliding-surface for welding robots with parameter uncertainties. The whole sliding-mode surface of VSC is divided into three sub-sliding-mode-surfaces...
Jumping robots provide an effective solution to overcome obstacles and perform locomotion in a rough and unstructured terrain. In this paper, an overview of jumping robots' principle, types, jumping and energy storage mechanism, uprighting mechanism, steering mechanism and models of kinematic and dynamic are presented. The existing technical problems and the future work are also discussed.
Excavator is used in general versatile construction operations such as digging, carrying loads, grounding and dumping loads. However, it is not safe for the worker to operate the excavator on the risk environments. Consequently, excavator's unmanned research focused on a few universities and companies are being studied. One of the most important things for researching automation of excavator is control...
The hydraulic excavator of field robot has been used in various fields of construction, such as digging, carrying loads, grounding and dumping loads. However, operating excavators in the hazard environment such as earthquake, nuclear decomposition etc is not suitable for human to operate on site. Therefore, a number of the skilled operator is gradually reduced by the dangerous working environment...
Taking pneumatic ABS as study object, the pneumatic system, braking system and the vehicle were modeled. Then, the CARIMA model of ABS was derived. Taking wheel slip rate as the control object, the reference trajectory function and the objective function was established. Thus, the general predictive control law was got. Considering the inertia of the braking system, the vehicle was modeled using matlab...
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