Model update for space structure is studied 2 .對空間結構模型修正的研究。
Are considered as a theory foundation . cis and visual basic are regarded as assistant tool , 1970 , 1984 , 1993 land use map is data fountain of the paper 并且在前人的基礎上總結城市空間結構研究的理論與方法,并對近一百年來中西城市空間結構模型及其發展做出評述。
Based on the result of examination and appraisal , a pedestal of turbine - generator is dynamic analysised with space structural model software , and the over - vibration reason of turbine - generator unit is finded 根據結構檢測鑒定結果,采用空間結構模型軟件對大容量汽輪發電機基座進行了動力分析,找出了汽輪發電機組振動超限的原因。
The plan of the paper is as follows . at the first , all the theories of spatial structure and regional development these decades are summed up , especially some representative theories are analyzed 本文從理論基礎入手,首先總結歸納了幾十年以來國內外空間結構理論和區域發展理論的成果,著重分析其中具有代表性的空間結構模型和區域發展理論內涵。
The prototype of the 6 - dof force / torque sensor on the steward platform is modeled by pro / e . and the static performance and dynamic performance of the sensor have been studied by using the fem software - ansys . the inherent frequency is also acquired 應用大型工程制圖軟件pro / e建立了整體預緊式六維力傳感器的空間結構模型,并應用大型有限元分析軟件ansys對該六維力傳感器的靜力和動態特性進行了分析,得到了六維力傳感器的固有頻率。
Abstract : on the basis of the space structure model , the behavio r of natural oscillation of open pile - supported beam - slab wharf and its dynamic response to wave forces were calculated and analyzed . it is pointed out that dyna mic analysis should be made when an open pile - supported wharf is designed 文摘:本文在空間結構模型的基礎上,對開敞式樁基梁板碼頭結構的自振特性及其在波浪力作用下的動力響應進行了計算分析,指出開敞式樁基碼頭設計應進行動力分析。
The dynamic characteristics of lightweight steel structure are also respectively calculated and analyzed in single span or whole structure . the computational results show that the out - planar stiffness has great influences on dynamic characteristics during the single span calculation ; in the total structural analysis the crane has no evidently effect on dynamic characteristics with contrast to single span 對輕鋼廠房結構的單跨和整體結構進行了動力特性計算分析,結果表明平面外剛度對動力特性的影響非常顯著,在空間結構模型分析中吊車質量對結構的影響并未比平面單跨情況下來得明顯。
At first , the author introduces the model of multi element linear regressive analysis . moreover , the author thinks that plotting grade and accessing price of land - value is also a model of city land - value spatial structure . and then , the author also provides her physiognomy model of city land - value spatial structure that includes the conception of the city land - value surface , land - value section chart ( land - value curve chart ) and land - value isoline chart 筆者首先介紹了多元線形回歸模型,認為城市土地的定級估價本身就是一種城市地價空間結構模型,在此基礎上,又提出了自己的城市地價空間結構的地貌模型,在這個模型中,筆者提出了城市地價面、地價剖面圖(地價曲線圖) 、地價等值線圖等概念。
Aiming at main project of the xiaoxihu bridge , a low pylon cable - stayed bridge , based on the existing theory and method of the bridge construction controlling theory , using the basic function of " ansys " , farther exploitation was done on concrete elasticity and creep calculating distinguishingly , nonlinearity analysis theory was used to construct the space model , the main beam , string pylon and abutment were simulated by the beam elements which was considered the shearing effect . which is worthy of considering that using the geometric non - linear truss elements to simulate the stayed - cable , form traveler is modeled as structure elements and participate in stress analysis . four stages are used to model the construction stage , which are : ( 1 ) the erection of form traveler ; ( 2 ) placing the segmental concrete ; ( 3 ) jacking the tendons ; ( 4 ) tensioning the stay cables 針對建設中的小西湖矮塔斜拉橋的主體工程,結合已有的橋梁施工控制的理論和方法,利用大型通用計算軟件ansys的基本功能,并著重在混凝土彈性計算及徐變計算方面做了相應的二次開發,采用非線性分析理論并建立了空間結構模型、用考慮剪切作用的梁單元模擬主梁、索塔和橋墩;用可考慮幾何非線性的桁元模擬斜拉索、施工掛藍作為結構單元進行拆裝,參與受力計算,整個施工過程按施工循環周期分為若干階段,每個階段又分為四個工況,即:空掛藍就位、澆筑完畢階段混凝土、張拉預應力鋼筋和張拉斜拉索。