A new form function involving parameters Pi is presented. On the basis of the form function, an initial form of tension structure was Sound by interpolating through the control points on boundary of the structure. The...A new form function involving parameters Pi is presented. On the basis of the form function, an initial form of tension structure was Sound by interpolating through the control points on boundary of the structure. The form function can be controlled by changing beta (1) according to the pre-tension and the boundary of the structure. The final form of a tension structure should be an equilibrium system under the pretension. To examine the nature of the initial form, the FEM was used. Many examples show that the initial form gives a very ideal result for equal or unequal pre-tension in two directions of the structure. In general cases, there is little difference between the initial form and the final one.展开更多
The human rights white paper has in it the basic concepts of human rights,the form of the human rights system,and the mode of human rights practice in modern China.It is based on the tension balance structure between ...The human rights white paper has in it the basic concepts of human rights,the form of the human rights system,and the mode of human rights practice in modern China.It is based on the tension balance structure between the historical feature and rationality,the cultural feature and similarity,the realistic feature and the common feature of human rights.Adhering to the historical nature of human rights rather than abstract rationality,and the cultural diversity and equality of human rights rather than one dominant model,and the particularity of human rights rather than universality is the pillar of China’s human rights philosophy,system,and practice.The human rights development path that combines the top-down leadership of China’s ruling party,the capability of the Chinese government in taking a holistic approach and the bottom-up driving force of the people is very different from the natural evolution path of the West.展开更多
The characteristics of normal inflatable antennas are described in this paper.For its deficiency such as low stiffness,a new-style of rigid-flexible coupling inflatable antenna is introduced.The advantages and system-...The characteristics of normal inflatable antennas are described in this paper.For its deficiency such as low stiffness,a new-style of rigid-flexible coupling inflatable antenna is introduced.The advantages and system-composition are presented.Airbag is an important component,and the shape and stress distribution of airbag is important for the whole structure.Thus,shape-state analysis is performed.The uniformity of constrained force at joint between airbag and rib will impact the state of joint,or even the deployment process.Therefore,a shape optimization of airbag is developed on the base of genetic algorithms,and the best shape of airbag is finally obtained.Therefore,the stress distribution of airbags will be uniformed and the antenna structure system will be more reliability.展开更多
文摘A new form function involving parameters Pi is presented. On the basis of the form function, an initial form of tension structure was Sound by interpolating through the control points on boundary of the structure. The form function can be controlled by changing beta (1) according to the pre-tension and the boundary of the structure. The final form of a tension structure should be an equilibrium system under the pretension. To examine the nature of the initial form, the FEM was used. Many examples show that the initial form gives a very ideal result for equal or unequal pre-tension in two directions of the structure. In general cases, there is little difference between the initial form and the final one.
基金the achievement of the Beijing Research Center for Xi Jinping Thought on Socialism with Chinese Characteristics for a New Erathe major project of the Beijing Social Science Fund“General Secretary Xi Jinping’s Important Statements on Human Rights”(21LFXA051)
文摘The human rights white paper has in it the basic concepts of human rights,the form of the human rights system,and the mode of human rights practice in modern China.It is based on the tension balance structure between the historical feature and rationality,the cultural feature and similarity,the realistic feature and the common feature of human rights.Adhering to the historical nature of human rights rather than abstract rationality,and the cultural diversity and equality of human rights rather than one dominant model,and the particularity of human rights rather than universality is the pillar of China’s human rights philosophy,system,and practice.The human rights development path that combines the top-down leadership of China’s ruling party,the capability of the Chinese government in taking a holistic approach and the bottom-up driving force of the people is very different from the natural evolution path of the West.
基金Sponsored by the Program for New Century Excellent Talents in University(Grant No. NCET-08-0150)
文摘The characteristics of normal inflatable antennas are described in this paper.For its deficiency such as low stiffness,a new-style of rigid-flexible coupling inflatable antenna is introduced.The advantages and system-composition are presented.Airbag is an important component,and the shape and stress distribution of airbag is important for the whole structure.Thus,shape-state analysis is performed.The uniformity of constrained force at joint between airbag and rib will impact the state of joint,or even the deployment process.Therefore,a shape optimization of airbag is developed on the base of genetic algorithms,and the best shape of airbag is finally obtained.Therefore,the stress distribution of airbags will be uniformed and the antenna structure system will be more reliability.
