A numerical optimization approach based on the finite element(FE) simulation was used to design the optimum irregular gourd-shaped pattern parameters for generating the highest hydrodynamic pressure. Then the optimum ...A numerical optimization approach based on the finite element(FE) simulation was used to design the optimum irregular gourd-shaped pattern parameters for generating the highest hydrodynamic pressure. Then the optimum parameters of the gourd-shaped surface texture were determined and the textures were processed on the stainless steel surface by the laser technology. The tribological performance of gourd-shaped surface texture was analyzed using the type of UMT2 tester, and compared with that of the regular circle surface texture and none-texture surface by considering the effect of sliding speeds and applied loads on the tribological performance. The results show that the compound factor n, the diameter ratio Dr and the texture depth Hd are more significant parameters and the optimum values are 0.618, 2.0 and 4 μm, respectively. In addition, irregular gourd-shaped surface texture with optimum parameters is the most effective in the friction reduction among the patterns investigated under different speeds and applied loads in this work. Moreover, better coordination and combination effect can be obtained by gourd-shaped surface texture. The main reason responsible for the results is the irregular symmetric nature of the gourd-shaped texture along the direction of lubricants flowing which can generate the higher fluid dynamic pressure.展开更多
Product form has become an important communication medium between designers and consumers.Therefore,the collection and analysis of consumer evaluation of products can provide an important reference index for product f...Product form has become an important communication medium between designers and consumers.Therefore,the collection and analysis of consumer evaluation of products can provide an important reference index for product form design.In this paper,purpleclay teapot was taken as an example and comments of Tmall consumers were collected through web crawler,and the product image vocabulary was extracted to analyze the needs of users.Using the research method of Kansei Engineering,the semantic space of the modeling and image of purple-clay teapot was established,and the relationship between the modeling elements and the image of purple-clay teapot was searched,which could provide valuable reference for the modeling design of purple-clay teapot.展开更多
China has traditional tea and ceramics cultures. They supplement each other. In a certain historical period, tea promoted the development of ceramic. The purple earthenware is a kind of ceramic. The development of thi...China has traditional tea and ceramics cultures. They supplement each other. In a certain historical period, tea promoted the development of ceramic. The purple earthenware is a kind of ceramic. The development of this kind of teapot was closely related with Chinese tea. In ancient China, the tea was boiled instead of being infused, as at present. At that time, most of the tea was in compressed form, not in bulk form, so no particular tea utensil was necessary. Since the Ming dynasty (1368-1644), the展开更多
A history of the purple clay that makes Chinese tea culture so renowned PEOPLE worldwide drink Chinese tea daily and may be familiar with all kinds of East asian teas. But dry leaves alone do not capture every-thing t...A history of the purple clay that makes Chinese tea culture so renowned PEOPLE worldwide drink Chinese tea daily and may be familiar with all kinds of East asian teas. But dry leaves alone do not capture every-thing there is to know about China’s tea culture. To become a qualified tea drinker, there is much展开更多
基金Project(51305023) supported by the National Natural Science Foundation of ChinaProject(FRF-GF-17-B20) supported by the Fundamental Research Funds for the Central Universities of China
文摘A numerical optimization approach based on the finite element(FE) simulation was used to design the optimum irregular gourd-shaped pattern parameters for generating the highest hydrodynamic pressure. Then the optimum parameters of the gourd-shaped surface texture were determined and the textures were processed on the stainless steel surface by the laser technology. The tribological performance of gourd-shaped surface texture was analyzed using the type of UMT2 tester, and compared with that of the regular circle surface texture and none-texture surface by considering the effect of sliding speeds and applied loads on the tribological performance. The results show that the compound factor n, the diameter ratio Dr and the texture depth Hd are more significant parameters and the optimum values are 0.618, 2.0 and 4 μm, respectively. In addition, irregular gourd-shaped surface texture with optimum parameters is the most effective in the friction reduction among the patterns investigated under different speeds and applied loads in this work. Moreover, better coordination and combination effect can be obtained by gourd-shaped surface texture. The main reason responsible for the results is the irregular symmetric nature of the gourd-shaped texture along the direction of lubricants flowing which can generate the higher fluid dynamic pressure.
文摘Product form has become an important communication medium between designers and consumers.Therefore,the collection and analysis of consumer evaluation of products can provide an important reference index for product form design.In this paper,purpleclay teapot was taken as an example and comments of Tmall consumers were collected through web crawler,and the product image vocabulary was extracted to analyze the needs of users.Using the research method of Kansei Engineering,the semantic space of the modeling and image of purple-clay teapot was established,and the relationship between the modeling elements and the image of purple-clay teapot was searched,which could provide valuable reference for the modeling design of purple-clay teapot.
文摘China has traditional tea and ceramics cultures. They supplement each other. In a certain historical period, tea promoted the development of ceramic. The purple earthenware is a kind of ceramic. The development of this kind of teapot was closely related with Chinese tea. In ancient China, the tea was boiled instead of being infused, as at present. At that time, most of the tea was in compressed form, not in bulk form, so no particular tea utensil was necessary. Since the Ming dynasty (1368-1644), the
文摘A history of the purple clay that makes Chinese tea culture so renowned PEOPLE worldwide drink Chinese tea daily and may be familiar with all kinds of East asian teas. But dry leaves alone do not capture every-thing there is to know about China’s tea culture. To become a qualified tea drinker, there is much
