Focus on the problems that heavy duty machine tool lack of fault samples and process information in repetitive assembly, result in the existing assembly process method can’t meet the repetitive assembly accuracy. According to characteristics of local machine assembly process, propose its assembly repeatability evaluation indexes. Establish the mapping relation among machine performance, assembly accuracy and structure, and built a hierarchical model of assembly process, obtain the process optimal design scheme of assembly accuracy repeatability. Use the multivariate function differential method, propose a calculation method of heavy machine assembly accuracy, and verify applicability of the method, depend on the machine loads and structure criterions, propose heavy machine assembly accuracy repeatability optimization method, example analysis shows that: the servo effect of repetitive assembly accuracy in new process is obvious, simultaneously stress field magnitude and stability of new technology is better than the original, realize effective control of the machine tool assembly accuracy repeatability.
In architectural designs teaching process, to enable the students to think in complete accord with the users thinking logic, under the premise of the effect of a comfortable usage, teaching process needs to return to the user's needs as the main purpose. By studying the psychological needs of the user, the sense of comfort of building space in people's daily life can be explored, and by integrating this approach into the teaching of architectural design , different types of spaces can be divided from the perspective of human behavior patterns,. After the investigation and analysis in different types of space which people have different psychological needs, and the method for determining the sense of comfort, we can make analogies and inferences with examples, propose comfort and design guidelines under specific behavioral environment, so as to achieve the humanization of space and provide a more effective teaching method of authentication in the teaching of design.
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