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  2012, Vol. 33 Issue (1): 0-90    DOI:
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Topological Optimization of Plant and Shell Structure with Displacement Constraints under Multiple Load Cases Based on ICM Method
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Abstract  An approximately explicit topological optimization model of plant and shell structure is established using ICM method to minimize the weight with displacement constraints under multiple load cases. The model is solved by a sequential quadratic programming (SQP) based on exact dual mapping and the optimal topology is finally obtained, which demonstrates that ICM method is effective in dealing with the topological optimization of plant and shell structure. Several numerical examples show that: 1.the optimal force-transfer path of the structure is related with its boundary conditions; 2.the variety of displacement constraint values result in different optimal topologies; 3. the force-transfer path in multiple load cases is not a simple superposition of those in each single load case.
Key wordsmultiple load cases      plant and shell structure      topological optimization      ICM method      displacement constraints     
Received: 28 October 2010     
:  O343.2  
  TU311.41  
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