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Furnishings
Published in V. Ramesh Babu, S. Sundaresan, Home Furnishing, 2018
Wool fabrics help you to enhance the look of your living room in a better way. It is also used in curtains, cushions and furniture upholstery for giving a better decor to your living room. Some of the mainly used woolen fabrics for the decoration of your living room are as follows:Mohair-It is a soft plain weave fabric having goat’s hair nap.Tartan-It is originated from Scotland and is a distinctive woven check fabric.Rep -It is a ribbed effected woven fabric and finds use in curtains and upholstery.Felt-It is a bonded non-woven fabric which can be cut in any direction without fraying. It finds use in curtain edging.
Recognition and decomposition of rib features in thin-shell plastic parts for finite element analysis
Published in Computer-Aided Design and Applications, 2018
Jiing-Yih Lai, Ming-Hsuan Wang, Pei-Pu Song, Chia-Hsiang Hsu, Yao-Chen Tsai
Fig. 4 is a flowchart of the proposed feature recognition and decomposition method for ribs, where the input is the B-rep model of an object and the output is the data of all rib regions and the corresponding slicing faces for each of them. The user must assign the maximum thickness allowed (tmax) for ribs. The proposed method is divided into three parts: preliminary functions, rib recognition, and rib decomposition. The objective of preliminary functions is to prepare two databases for rib recognition and decomposition: an edge AAG database, which records the topological and geometric information of all edges, and a face AAG database, which records the same information for all faces. The objective of rib recognition is to find all rib segments. A single rib is essentially a rib segment, which is constructed by a pair of end faces that are parallel or almost parallel to each other. A rib structure, however, is composed of rib segments and transition regions. The set of shell faces and base faces adjacent to both end faces are also computed. The rib recognition algorithm is equivalent to a search for the end, shell, and base faces of all rib segments. The objective of rib decomposition is to compute all regions so that they can be decomposed one by one. Each region is either a rib segment or a transition region. The faces that cross distinct rib segments are divided and regenerated so that each rib segment has its own faces, and the data for all transition regions are also computed. Finally, a set of slicing faces for each region is evaluated so that all regions can be separated from the CAD model.