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The analysis and feature extraction of surface electromyography signal (sEMG) are important in the clinical diagnosis of human function state and patients rehabilitation. The principle of rehabilitation training and implementation process is introduced in the paper. The hardware of the control system and the mode of training and the spectacle of virtual reality are designed. while the feature extraction...
In this paper, acoustic performance of a complicated resistance muffler has been studied. A numerical model is established to reveal the filtering mechanism of the complicated muffler with the acoustic performance. Simulated result is compared with actual experiment signals to verify the validation of the model. The filter model is concern with the structure of the muffler. The filtering relation...
The noise attenuate of resistance muffler has been studied with the pressure signals of resource noise and the noise exhausted out of muffler with different diesel rotational velocity collected, and the acoustics performance of the double noise has been researched with the signal spectrum analysis. Corresponding conclusions have been obtained as following: the resource noise has similar spectrum performances...
Two-phase flow problems are presented using the method of smoothed particle hydrodynamics (SPH). The combination of meshless and lagrangian nature inherent in the SPH method offers the advantages in treating large deformations, large inhomogeneities and tracing interfaces in the two-phase flow process. Two cases are solved using a SPH code developed at ACES. It is found that major physics of the two-phase...
According to the structure feature of virtual manufacturing basic environment (VMBE), a strict tree-structure model of VMBE is put forward, which simplifies the systempsilas description. Moreover, regarding any branch node as a root node, any kinds of virtual manufacturing system (VMS) facing to different application levels could be created. In the high-safety, high-reliability, high-accuracy application...
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