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In this paper, a new compliant parallel mechanism driven by piezoelectric actuators is designed, which is a modified structure from our previous designed stage. In order to compensate the limited stroke of PZT, the secondary amplification mechanism was adopted in this design, and also the matrix method is utilized to calculate its stiffness and compliance for this compliant mechanism. In practical...
Morbus Parkinson is a widespread disease amongst the elderly people. With increasing life expectancy the numbers of patients with Parkinsons disease are rising. Over the last decade, Deep Brain Stimulation (DBS) of certain nuclei within the basal ganglia has been established as an effective treatment for patients with advanced Parkinsons disease (PD) and motor complications not longer adaequatly treated...
The design and evaluation of a new compliant microgripper is reported in this paper on the basis of a dissymmetric mechanism. This structure has two parallelogram mechanisms which enable the generation of purely translational motion of the gripper tips. It is desirable for micromanipulation and microassembly tasks. Unlike the traditional pure-translation grippers, the presented one has a simple architecture...
The disassembly of end-of-life products has thus far seen minimal industrial application of robotics, aside from manufacturers initiatives to refurbish their own products. Conventional robotics in manufacturing lacks the flexibility to deal with the expected small lot sizes, product deviations and failed operations due to product damage. Disassembly systems not owned by manufacturers need to be readily...
To make up the shortcoming of numerical controlled machine fault diagnosis, a comprehensive fuzzy decision-making method is proposed in this paper. The new method combines fault phenomenon with fault reason. Based on the theory of fuzzy mathematics, the fuzzy relationship model between fault phenomenon and reason is established. And the comprehensive fuzzy diagnosis is realized with T-S model. Based...
The goal in minimally-invasive surgery like NOTES (natural orifice transluminal endoscopic surgery), or single-port surgery, through one artificial incision, is to reduce the operative and post-operative stresses for the patients. Today's challenges for physicians during procedures are the missing mobility of the used flexible instruments inside the human body. Primarily the missing ability to manipulate...
Crustal movement simulation takes the very essential effect in the research on water cycle and related land surface processes. In this paper, a crustal movement simulation system (CMSS) is presented. The system enables researchers investigate the effects of crustal movement on rivers and lakes in the laboratory environment. The CMSS proposed consists of twelve sets of parallel mechanism supported...
Slim and strong hyper-redundant manipulators with long reaches can perform a variety of intra-cavity tasks in confined spaces. Benefiting from a newly developed continuum mechanism and its actuation scheme, this paper proposes the design of a hyper-redundant continuum manipulator with 12 DoFs (Degrees of Freedom). With a structure synthesized in an enumerative manner, the manipulator is expected to...
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