Based on the theory of multibody system dynamics, the spatial kinematics analysis of the Mcpherson independent suspension widely used in the car was carried out. A practical and simpler method was provided to reduce t...Based on the theory of multibody system dynamics, the spatial kinematics analysis of the Mcpherson independent suspension widely used in the car was carried out. A practical and simpler method was provided to reduce the number of the generalized coordinates and constraint functions. By solving the nonlinear equations, the motion of any points in the whole suspension and wheel system can be predicted, including the spatial changes of the wheel alignment parameters which are of great importance to the car performances.展开更多
Since the second half of the 20th century in Italy, following farming conversion or abandonment, many traditional agricultural systems and the connected landscapes along with them have disappeared. We discuss a concep...Since the second half of the 20th century in Italy, following farming conversion or abandonment, many traditional agricultural systems and the connected landscapes along with them have disappeared. We discuss a conceptual framework to understand and describe changing in agricultural landscapes. According to us, the traditionality of the agricultural landscape is an expression of the local coevolution between the social project of the farmer and the constraints made by the natural system. The paper focuses on defining a spatial-temporal analytical model based on both the morphological recognition of different typologies of elements which contribute to the environmental landscape mosaic and the dynamic observation of the transformations of the mosaic itself. We identify the natural, social and economic driving forces involved in defining the agricultural space using a transdisciplinary approach so that ecological, agronomics and socio-economical information must be integrated as a basis for land use planning and management. The research approach and the methodology are applied to a couple of case studies.展开更多
The frame should not only be regarded as an external physical framework of artworks, but also the boundary mark of identifying the art and reality. Within classical space contained by the frame, the values of reason, ...The frame should not only be regarded as an external physical framework of artworks, but also the boundary mark of identifying the art and reality. Within classical space contained by the frame, the values of reason, order, and clarity work to achieve a coherent picture space uniting, through the agency of the frame and the space represented with the space occupied by the beholder. The resistance on ＂frame despotism＂ and ＂dismemberment＂ of picture by avant-garde artist exposes the illusory reality created by perspective and verisimilitude, which deconstructs the false aesthetic relationship of frame and picture. Analysis on frame by modernist art builds its art value展开更多
This paper deeply analyses the influence of different local tectonic on stress performance of spatial curved steel box Girder Bridge, using the finite element analysis software to establish space finite element model ...This paper deeply analyses the influence of different local tectonic on stress performance of spatial curved steel box Girder Bridge, using the finite element analysis software to establish space finite element model of this bridge, calculation and analysis were made on the bridge of the strength, stiffness. It has certain reference value for guiding engineering design, have a good foundation for the mechanical properties and stability of linear and nonlinear further study of curved steel box girder.展开更多
文摘Based on the theory of multibody system dynamics, the spatial kinematics analysis of the Mcpherson independent suspension widely used in the car was carried out. A practical and simpler method was provided to reduce the number of the generalized coordinates and constraint functions. By solving the nonlinear equations, the motion of any points in the whole suspension and wheel system can be predicted, including the spatial changes of the wheel alignment parameters which are of great importance to the car performances.
文摘Since the second half of the 20th century in Italy, following farming conversion or abandonment, many traditional agricultural systems and the connected landscapes along with them have disappeared. We discuss a conceptual framework to understand and describe changing in agricultural landscapes. According to us, the traditionality of the agricultural landscape is an expression of the local coevolution between the social project of the farmer and the constraints made by the natural system. The paper focuses on defining a spatial-temporal analytical model based on both the morphological recognition of different typologies of elements which contribute to the environmental landscape mosaic and the dynamic observation of the transformations of the mosaic itself. We identify the natural, social and economic driving forces involved in defining the agricultural space using a transdisciplinary approach so that ecological, agronomics and socio-economical information must be integrated as a basis for land use planning and management. The research approach and the methodology are applied to a couple of case studies.
文摘The frame should not only be regarded as an external physical framework of artworks, but also the boundary mark of identifying the art and reality. Within classical space contained by the frame, the values of reason, order, and clarity work to achieve a coherent picture space uniting, through the agency of the frame and the space represented with the space occupied by the beholder. The resistance on ＂frame despotism＂ and ＂dismemberment＂ of picture by avant-garde artist exposes the illusory reality created by perspective and verisimilitude, which deconstructs the false aesthetic relationship of frame and picture. Analysis on frame by modernist art builds its art value
文摘This paper deeply analyses the influence of different local tectonic on stress performance of spatial curved steel box Girder Bridge, using the finite element analysis software to establish space finite element model of this bridge, calculation and analysis were made on the bridge of the strength, stiffness. It has certain reference value for guiding engineering design, have a good foundation for the mechanical properties and stability of linear and nonlinear further study of curved steel box girder.
