關(guān)于制作復(fù)雜緯編針織物結(jié)構(gòu)模型的基礎(chǔ)研究 第二部分：歪斜平紋織物的幾何模型畢業(yè)論文外文資料翻譯

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1、Basic studies for modeling complex weft knitted fabric structures Part II: A geometrical model for plain knitted fabric spirality A model for the spirality of plain knitted fabrics with compressible yarns is given here by modifying Kurbaks (1998) plain knitted loop model. The proposed model is

2、 thought to be applicable not only to the spirality of classical textiles, but also to modeling small diameter tubular technical textile fabrics. In the present study, it is suggested that because of the three-dimensional nature of the plain loop, the yarn part at the left arm of the loop and the ya

3、rn part at the right arm of the loop have torsions in opposite directions, so that if the yarn used is already twist lively, this potential twist applies in the same direction for both of the arms. Therefore, the total twist decreases in one arm and increases in the other. To equalize their total tw

4、ists, the curves of the yarn axis in the arms differ from each other (the elliptical cylinders on which the yarn arms wrapped differ in length and in radius). The upper and lower parts of the loop adjust themselves by transforming into parametric elliptical shapes from their original elliptical shap

5、es. There is another method of twist redistribution in the fabrics, which is to differentiate the wrapping angles of the helices on two arms of a loop. This is defined as "the second kind of spirality" and is mainly seen in m X n rib structures as well as in some of the technical textile plain knitt

6、ed fabrics. This second kind of spirality is not considered during the creation of the model, but a discussion is given on this subject at the end of the work. 關(guān)于制作復(fù)雜緯編針織物結(jié)構(gòu)模型的基礎(chǔ)研究 第二部分：歪斜平紋織物的幾何模型 這里給出一個(gè)通過修改Kurbak（1998）平紋針織線圈而得到的帶有

7、可壓縮紗的歪斜織物模型。該模型被認(rèn)為是不僅適用于古典紡織品的歪斜，而且適用于小直徑管技術(shù)的紡織面料。目前的研究表明，由于平紋線圈的三維特性，在左邊的循環(huán)紗線和在右邊的循環(huán)紗線部分有相反的扭轉(zhuǎn)方向，然而，如果使用的紗線已經(jīng)扭曲，這種潛在的扭曲在織物兩邊將有相同的方向。因此，總的扭曲在一邊減少而在另一邊就會(huì)增加。為了平衡總的扭曲量，兩邊紗軸的轉(zhuǎn)曲方向應(yīng)該互補(bǔ)相同（在橢圓的錫林上預(yù)裝著不同長(zhǎng)度、不同半徑的沙臂）。線圈的上部和下部可以通過改變橢圓的原始尺寸來調(diào)整。還有另一種方法調(diào)整織物的扭曲，就是區(qū)別線圈兩邊的不同卷繞角度。這被定義為“第二類歪斜”，常見于m*n型的羅紋組織以及一些平素針織物中。第二類歪斜并沒有制作出模型，只是在文章最后提及一下罷了。