Made in China [newly made power plants]

2005 ◽  
Vol 19 (6) ◽  
pp. 12
Author(s):  
M. Venables
Keyword(s):  
Author(s):  
Songyuan Lu ◽  
Gao Wei

Abstract Some catastrophic vibration failures of turbogenerators shaft system have occurred in China and abroad. But, since the researches on nonlinear vibration characteristics of real engineering rotor-bearing system were not thoroughgoing in the past years, so the accurate and quantity analysis on particular accidents is still impossible. However, to understand the nonlinear vibration characteristics with large unbalance is engineering important for accident analysis, investigation and for precautions against the failures. This paper employed a new transfer matrix-time marching approach, and made researches on calculation for nonlinear vibration caused by large vibration at the generator rotor and low pressure rotor of 200MW turbogenerators made in China. By this study, some new and important conclusions concerned transient process while much mass escaped from turbogenerators rotor at operation condition have been obtained. They can provide valuable suggestions to the accident analysis, the design of large turbogenerators shaft and operation technology of the power plants, and these conclusions will be the foundation for the further researches on the destruction mechanism of turbogenerators forced by nonlinear vibration.


Praxis ◽  
2020 ◽  
Vol 109 (6) ◽  
pp. 1-2
Author(s):  
Ewelina Biskup ◽  
Feng Li ◽  
Shixian Dong ◽  
Yan Wo
Keyword(s):  

2014 ◽  
Author(s):  
Jay P. Kesan ◽  
Alan C. Marco ◽  
Richard Miller

Africa ◽  
2021 ◽  
Vol 91 (2) ◽  
pp. 317-336
Author(s):  
Johanna von Pezold ◽  
Miriam Driessen

AbstractThe influx of Chinese-made African ethnic dress has been central to debates about the consequences of the growing Chinese presence in Africa. Exploring the reception of the Chinese-produced capulana in Mozambique and net'ela in Ethiopia, we demonstrate that Mozambican and Ethiopian manufacturers and traders, from the grass roots up to cultural elites, engage with Chinese imports with creativity and verve. While welcoming Chinese materials for their affordability, bold and bright colours and suitability for dressmaking, they fashion them in ways that fit their own tastes and the local fashion trends. We distinguish three practices by which people do this: first, by incorporating Chinese materials or design elements into their own products; second, by co-creating new designs and dress with their Chinese counterparts; and third, by altering the imported fabrics. Apart from fashioning imports, some manufacturers use strategies to distinguish their own products from Chinese counterparts. These strategies include naming practices linked to the stories of their origin and alterations to the material.


2019 ◽  
Vol 24 (2) ◽  
pp. 199-217 ◽  
Author(s):  
Boy Lüthje

The article examines the development of advanced digital manufacturing (as outlined in the ‘Made-in-China 2025’ government plan) from the perspective of the changing socio-technical paradigms of production. The analysis focuses on the transformations of value chains and work, based on theories of social shaping of technology, regulation theory and regimes of production. Analytically, the author proposes to distinguish between ‘production-driven’ and ‘distribution-driven’ pathways of manufacturing digitalisation. The transformation of semi-rural industrial areas (‘Taobao villages’, named after China’s largest e-commerce platform Taobao) into mass production clusters for e-commerce is depicted as a paradigmatic model of distribution-driven transformation and as a characteristic Chinese strategy in this field. The article examines the impact on industry supply chains and work, leading to ever-more precarious conditions of employment. Policy recommendations focus on local strategies to stabilise supply chain structures and working conditions, as an alternative to the present top-down approaches to manufacturing modernisation in China.


2006 ◽  
Vol 9 (3) ◽  
pp. 285-296 ◽  
Author(s):  
Michael Keane
Keyword(s):  

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