Based on the fact that the development of nonlinear solid mechanics has been closely integrated with the material microstructure, this paper derived the vertical stress satisfying the harmonic function at any point from the super-elastic constitutive equation of the rubber; further, the uniaxial equivalent elastic modulus \begin{document}${E_c}$\end{document} and the pure bending equivalent bending stiffness \begin{document}${E_c}Is$\end{document} of the single-layer rubber were obtained from the vertical stress integration. Then the seismic isolation rubber bearing was equivalent to a homogeneous body conforming to \begin{document}${E_c}$\end{document} and \begin{document}${E_c}Is$\end{document} , and the partial differential equilibrium equation macroscopically reflecting the degree of shear and bending deformation of the rubber bearing was established in the simultaneous action of two external load, and its general solution was obtained. The difficulties of the geometrical non-uniformity of large shear deformation of rubber support were solved in the vertical and horizontal loads. On this basis, a full-scale seismic isolation test of rubber bearing for compression and shear experiment was carried out. According to the experimental shear modulus \begin{document}$(G)$\end{document} and horizontal shear strain \begin{document}$(\gamma )$\end{document} curves, the experimental curves of the horizontal thrust \begin{document}$\left( {{F_H}} \right)$\end{document} and \begin{document}$\gamma $\end{document} of the bearing were obtained. It was almost completely overlapped with the theoretical curve. Therefore by introducing the material nonlinearity into the above differential equilibrium equation, the double nonlinear problem of large shear deformation of the superelastic rubber bearing was solved. Following the above answers, the internal force distribution law of the rubber bearing was obtained, which has a clear guiding significance for judging the weak part of the bearing. Subsequently, the comparative analysis of two more important characteristics (shear strain correlation and axial pressure correlation) of the rubber bearing was carried out, which can provide practical application value for engineering. Finally, the horizontal thrust and displacement of the support can also be obtained through the sensor monitoring the internal stress of the support, achieving the health monitoring of the isolated building during the earthquake.

利用FactSage7.1热力学软件对氟磷灰石碳热还原过程进行热力学分析,并模拟电热法制磷,采用X射线衍射(XRD)、傅立叶变换红外光谱(FT-IR)和扫描电镜(SEM)等分析还原过程及Ca、Si元素的相态转变.结果 显示:主要含Ca固相Ca5(PO4)3F在1180℃时会转化为Ca3(PO4)2和CaF2,在1250℃时发生脱氟转变为CaSiO3和Ca3(PO4)2;体系中的Si在1250C时会由固相SiO2转变为CaSiO3,同时会有微量气相SiF4逸出;随温度的升高,Ca、Si会转变为不同形式的钙硅酸盐并形成低共熔物,形成钙硅酸盐的顺序为CaSiO3、Ca2SiO4和Ca3SiO5;随温度的升高,体系在1400℃时发生熔融并产生含有硅酸盐系低共熔物的液相,液相的产生和扩散会影响反应的进行程度.该研究为实现热法加工全量资源化利用提供理论基础.

Syngas as the basic chemical industial material can be obtained by chemical looping gasification(CLG).Phosphogypsum as a by-product of wet process phosphoric acid industry , was used as the oxygen carrier.The influences of SiO 2 , Al2 O3 and Fe2 O3 in phosphogypsum of chemical -looping combustion process on the output of syngas though the thermogravimetric analysis and tube furnace under the condition of N2 and steam as gasifying agent were studied .Experimental results show that the high temperature is beneficial to the synthesis of gas output , the addition of Fe2 O3 has a significant effect on the output of CO, while adding SiO2 is more beneficial to the output of H 2 and the addition of Al 2 O3 can promote the overall output of syngas .

The common numerical simulation software COMSOL Multiphysics,Aspen Plus,ANSYS Fluent software and MATLAB)application in chemical looping combustion (CLC) are introduced.In addition,the common chemical kinetics model in CLC,the necessary factors and operational steps for simulation are analyzed and summarized according to the four software.Based on CNKI and Web of science,the current situation for the four software have been investigated.The key directions about numerical simulation software development are pointed out.In the end,COMSOL Multiphysics as the dominant numerical simulation of CLC is also proposed.