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Aiming at the complex modal characteristic of the frame of the light electric sanitation vehicle under various working conditions, the finite element method is used to study the natural frequency and modal shape cloud diagram. Based on the frame model established in the three-dimensional software, the model characteristic is analyzed, the natural frequency and modal shape of the first five orders of mode are obtained, and their influences on vehicle travel are analyzed. The frame is improved, and the influence of the improved frame on the natural frequency and modal shape are analyzed. The results show that the bending and torsion resistance of the improved frame is ameliorated. Compared with the torsion resistance, the bending resistance of the frame is much ameliorated, which lays a foundation for the relative experiment, dynamics analysis and structural improvement of the frame.

Keywords : Electric Sanitation Vehicle, Modal Analysis, Frame, Finite Element Analysis

Recent

[1] Feng Jinzhi, Deng JiangBo, Zheng SongLin, Li Yuan. Design method of car subframe based on material replacement. Automotive Engineering, 2016, 38(6): 778-782. [2] Li Weifeng, Zhu Maotao, Lu Feng, Chen Yazhou. Case study on modal analysis of subframe of a SUV car. Noise and Vibration Control, 2013, 33(3): 124-127. [3] Li Guojun. Analysis of dump truck frame finite element modal. Equipment Manufacturing Technology, 2014, 12: 118-119. [4] Wang Huiyun, Lv baozhan, Zhu Sihong. Modal analysis of Light-truck frame based on ANSYS. Coal Mine Machinery, 2007, 28(3): 59-61. [5] Wu Haibo, Li Jin, Shi Leilei.Finite element modeling and modal analysis of light truck frame. High & Automotive Applications, 2012, 51(4): 17-19. [6] Li Weifeng, Zhu Maotao, Lu Feng, Chen Yazhou. Case study on modal analysis of the subframe of a SUV car. Noise and Vibration Control, 2013, 33(3): 124-127. [7] Zhao Jianzhong, Zhang Ruikun, Song Yangyiong, Chen Yong. Structure intensity and modal analysis of a SUV rear sub-frame. Mechanical Engineering & Automation, 2016(4): 48-50. [8] Ouyang Tiancheng, Wei Qifeng, Huang Jincheng. The modal analysis and optimization on heavy truck frame. Equipment Manufacturing Technology, 2012(4):19-21. [9] Yin Andong, Gong Laizhi, Wang Huan, Xu Junbo. Finite element analysis of electric vehicle frame based on HyperWorks. Journal of hefei University of Technology, 2014, 37(1):6-9+77

In spite of the fact that investigation into the plan of action has gotten expanding consideration, few examinations have so far been led on plan of action advancement in a global setting. The reason for the examination is to recognize different examples of plan of action development which empowers worldwide retailers to reconstruct their center business rationale in new host nations. Based on looking into the plan of action changes of 15 universal retailers from different home nations to one single host nation (China), our investigation gives an inside and out comprehension of plan of action development with regards to global business. By taking a gander at the firms abilities in revamping their center rationale in the setting of a host nation, we uncover six courses of retail plan of action advancement. Using the focal point of authoritative learning hypothesis and internationalization, we distinguish three examples of asset arrangement by universal organizations during the time spent creating plan of action developments. Our investigation, thus the, gives experiences and direction to multinational organizations when all is said in done, universal retailers specifically, with respect to how to effectively adjust their plan of action from home nation to have nation.

Keywords : Global Setting, Global Business, Revamping, Multinational, Internationalization

Recent

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In recent scenario of rapid urbanization and industrialization causes various changes in our natural resources like air, water, soil etc. Various problems are caused due to these changes such as drought, frequent floods, pollution, change in climate, loss of biodiversity, extinction of many varieties of flora and fauna, land use and land cover changes, degradation of land and many more. Various researches are carried out to on the topics to comate the impact of these physical changes regarding our natural resources. So there is need of reliable hydrological model which will give more compatible results with the observed parameters. It is not always true that a complex hydrological model give the more accurate output. So there was an argued that even the use of complex models does not provide better results. This paper is regarding various hydrological models, their classification and short description about them.

Keywords : Hydrology, Hydrological process, Hydrological models, Classification

Recent

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