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Analysing the probabilities of the natural resting aspects of a component with a displaced centre of gravity

 

作者: B. K. A. NGOI,   S. S. G. LEE,   L. E. N. LIM,  

 

期刊: International Journal of Production Research  (Taylor Available online 1995)
卷期: Volume 33, issue 9  

页码: 2387-2394

 

ISSN:0020-7543

 

年代: 1995

 

DOI:10.1080/00207549508904822

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

This paper presents a new approach in the analysis of the natural resting behaviour of a component with a displaced centre of gravity. The methods proposed by Boothroyd et al. (1972), and Boothroyd and Ho (1977), can analyse parts with the centre of gravity located al their geometric centre. Hitherto, the only attempt at analysing pans with displaced centres of gravity entailed the use of empirical factors (Boothroyd et al. 1972). The hypothesis presented herein makes use of the centroid solid angle concept to analyse a component with a displaced centre of gravity. The proposed hypothesis postulates that the probability of a part coming to rest in its various natural resting aspects is directly proportional to the magnitude of the centroid solid angle and inversely proportional to the height of the centre of gravity from that aspect. The experimental results of drop tests conducted on a test specimen corroborate the hypothesis within a maximum deviation of 4%. This is the first successful attempt in the analysis of the natural behaviour of components with displaced centres of gravity that does not rely on empirical factors.

 

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