Abstract




 
   

IJE TRANSACTIONS B: Applications Vol. 28, No. 2 (February 2015) 277-283   

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  VIBRATION CHARACTERISTICS OF HEAVY LOAD RACKWITH SPLIT-HOM TOGETHER STRUCTURE (RESEARCH NOTE)
 
B. Li, L. Hou, R.Q. Mou and Y.Q. Wei
 
( Received: June 28, 2014 – Accepted: November 13, 2014 )
 
 

Abstract    Split-hom together structure is a new heavy load rack structure, and its reliability needs to be verified. Through analyzing multimodal hom-connection principle from the perspective of bionics and contact mechanics, the article puts forward three kinds of hom-connection methods and establishes the finite element model and mathematical model of the rack. Afterwards, the finite element model and the mathematical model are separately performed modal analysis and numerical simulation. The results of modal analysis show that the two sides` pressure of hom bonding interfaces remain higher than the pressure making sub body slip when the rack has prestress, so the rack is safe. Meanwhile the results of numerical simulation indicate that the displacement and deformation of the rack is consistent with the results of modal analysis when occurring resonance and working in the eccentric loading condition. The results validate the reliability of the design on split-hom together rack.

 

Keywords    Heavy load rack, Prestress, Modal analysis, Numerical simulation

 

چکیده    ساختار با هم تقسیم هوم یک سازهی قفسی سنگین جدید است که اعتبار آن نیاز به تایید دارد. در این مقاله، از طریق تجزیه و تحلیل اصل هوم - اتصال از منظر بیونیک و مکانیک تماس، مدل المان محدود و ریاضی قفسه تهیه شده است. آنالیز مودال برای مدل المان محدود در حالت پیشتنیده انجام شده است، که نتایج آن که قابلیت اطمینان قفسه را نشان می دهد از دندانه دار کردن انجام می شود. در حالی که شبیه سازی عددی به مدل ریاضی از قفسه برای اولین بار در حالت کار استفاده شده است، نتایج نشان میدهد که تغییر شکل در دو روش تقریباً یکسان و در حد مطلوب است. در همین حال، از طریق حداقل فرکانس، نتیجهی آنالیز مودال با نتیجهی شبیه سازی عددی متفاوت است ، فرکانس در هر دو حالت بالاتر از فرکانس کار است . بنابراین ، قابلیت اطمینان به این روش تایید میشود.

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