纺织工程专业本科机织学课程“WEAVE”教学模式创新与实践

为了落实立德树人根本任务,以为国家和社会培养支撑纺织产业转型升级的复合人才为根本目标,结合课程特点、学情分析和教师角色,对纺织工程专业本科机织学课程进行了教学创新探索与实践。坚持以学生学习为中心,建设“WEAVE”教学模式。在“WEAVE”教学模式中,在教学内容、教学方法、教学评价体系方面,注重强调学生在学习中的主体地位,明确教师在学习过程中的辅助作用,引导学生高度参与课堂教学,加深学生对学习目标和学习成果的清晰认知,更好地培养学生的学习能力。“WEAVE”教学模式具有明显的纺织特色,在培养纺织行业人才方面具有一定的优势。

Analysis on the turning point of dynamic in-plane compressive strength for a plain weave composite

Experimental investigations on dynamic in-plane compressive behavior of a plain weave composite were performed using the split Hopkinson pressure bar. A quantitative criterion for calculating the constant strain rate of composites was established. Then the upper limit of strain rate, restricted by stress equilibrium and constant loading rate, was rationally estimated and confirmed by tests. Within the achievable range of 0.001/s-895/s, it was found that the strength increased first and subsequently decreased as the strain rate increased. This feature was also reflected by the turning point(579/s) of the bilinear model for strength prediction. The transition in failure mechanism, from local opening damage to completely splitting destruction, was mainly responsible for such strain rate effects. And three major failure modes were summarized under microscopic observations: fiber fracture, inter-fiber fracture, and interface delamination. Finally, by introducing a nonlinear damage variable, a simplified ZWT model was developed to characterize the dynamic mechanical response. Excellent agreement was shown between the experimental and simulated results.

The Impact of Fabric Weave and Anisotropy on the Poisson’s Ratio in Technical Fabrics

Poisson’s ratio changes during the tensile stress of technical fabric samples due to the anisotropy of technical fabrics.This paper examines the effects of the type of weave and the anisotropic characteristics of the technical fabric on maximum tensile force,corresponding elongation,work-to-maximum force,elasticity modulus,and Poisson’s ratio when axial tensile forces are applied to samples cut at various angles in the direction of the weft yarns of the technical fabric.In the lab,3 cotton fabric samples of constant warp and weft density with different structural weave types(plain weave,twill weave,atlas weave)were subjected to the tensile force until they broke at the following angles:0°,15°,30°,45°,60°,75°,90°.Based on the different measured values of technical fabric stretching in the longitudinal direction and lateral narrowing,Poisson’s ratio is calculated.The Poisson’s ratio was calculated up to a relative elongation of the fabric of 8%,as the buckling of the fabric occurs according to this elongation value.According to the results presented in this paper,the type of weave of the fabric,the direction of tensile force,and the relative narrowing of the technical fabrics all play important roles in the Poisson’s ratio value.The Poisson’s ratio curve of a technical fabric under tensile stress(i.e.elongation)is primarily determined by its behaviour in the opposite direction of the elongation.The change in the value of the Poisson’s ratio is represented by a graph that first increases nonlinearly and then decreases after reaching its maximum value.

Influence of Weave Structures on the Tribological Properties of Hybrid Kevlar/PTFE Fabric Composites

The existing research of the woven fabric self-lubricating liner mainly focus on the tribological performance improvements and the service life raised by changing different fiber type combinations, adding additive modification, and performing fiber surface modification. As fabric composites, the weave structures play an important role in the mechanical and tribological performances of the liners. However, hardly any literature is available on the friction and wear behavior of such composites with different weave structures. In this paper, three weave structures （plain, twill 1/3 and satin 8/5） of hybrid Kevlar/PTFE fabric composites are selected and pin-on-flat linear reciprocating wear studies are done on a CETR tester under different pressures and different frequencies. The relationship between the tensile strength and the wear performance are studied. The morphologies of the worn surfaces under the typical test conditions are analyzed by means of scanning electron microscopy （SEM）. The analysis results show that at 10 MPa, satin 8/5 performs the best in friction-reduction and antiwear performance, and plain is the worst. At 30 MPa, however, the antiwear performance is reversed and satin 8/5 does not even complete the 2 h wear test at 16 Hz. There is no clear evidence proving that the tensile strength has an influence on the wear performance. So the different tribological performance of the three weave structures of fabric composites may be attributed to the different PTFE proportions in the fabric surface and the different wear mechanisms. The fabric composites are divided into three regions： the lubrication region, the reinforced region and the bonding region. The major mechanisms are fatigue wear and the shear effects of the friction force in the lubrication region. In the reinforced region fiber-matrix de-bonding and fiber breakage are involved. The proposed research proposes a regional wear model and further indicates the wear process and the wear mechanism of fabric composites.

CAD Method to Design Complex Dobby Weaves with Large Repeats

The principle of a CAD method of converting the pre-designed figures in image form into complex dobby weaves with the appearances similar to the original figures is mainly introduced in this paper. A few designed weaves by the created CAD system are also given as examples of the practical application in the area of complex dobby weave designing.

Quantitative research on the heat affected zone of weave bead welding for Invar alloy

Quantitative research on the heat affected zone （ HAZ） o f weave bead welding （ WBW） joint fo r Invar alloy is carried out in this paper. Based on the morphology and related data analysis of the weld seam, the width difference o f each layer and the forming mechanism are analyzed. Results show that the bottom layer （ Layer 1 ） has the widest HAZ and the smallest fluctuation, which reaches 1 200 ｜jLm. HAZ width o f layer 2 to 5 is relatively narrower which is basically below 600 jjim, while the amplitude fluctuation is greater. The main reason lies in the welding path. The long straight welding without weave causes the base metal near the groove fully melts which causes by the long straight welding without weave, while welding with weave leads to the uneven and inadequate melting of metal near groove.

A Method of Computer Simulation for Derivative Weave and Composed Weave

In this paper, we investigate the method of computer simulation for derivative weave by adopting the way of weave differentiation with mathematical function. And on that base, we explore the way for dealing with composed weave. It is purposed for building a simple and efficient way of computer simulation for weave.

Development of Sichuan Brocade with Imitating Embroidery Effect Based on Free-Floats Interlacing Weave

Owing to the diversity of consumer’s demand, the traditional Sichuan brocade products have to be innovated in order to survive in a competitive environment. Since the construction of traditional Sichuan brocade was composed of basic-weave, the surface of the fabric shows a regular interweaving planar texture and is difficult to represent a three-dimensional effect. Inspired by embroidery handcraft, this paper attempts to achieve the embroidery-like effect on the fabric through the jacquard process. Based on the multi-backed structure of traditional Sichuan brocade, we adopted the zoned-combination design mode and added extra free-floats interlacing weave in the area where we want to show the embroidered effect and arranged the interlacing points by referring to the feature of the pattern. As a result, designed Sichuan brocades by this method are capable of displaying embroidered effect with high realism and three-dimensionality. This approach improves the artistic effect of the traditional Sichuan brocade and provides a technical reference for further texture design of jacquard fabrics.

Method of Weave Design Using the Concept of Auxiliary Dobby Shaft

The craft of auxiliary dobby shaft is one of methods used in the traditional figured woven textiles and especially brocade in China.Based on the principle of auxiliary dobby shaft,a new method of weave design was proposed.The relevant arrangement of warp and weave design were discussed.It is shown that this method can be applied on one electronic jacquard loom with single warp beam for new product development and production.And this effect will open up a new way to reproduce traditional fabrics in order to protect and develop Chinese traditional culture.

3D Woven Structures and Their Weave Design with Changing Cross-section on Warp and Weft Direction

With 3D orthogonal and pseudo-orthogonal weaves, woven sructures with lengthwise and widthwise changing cross section on one side or both sides of the structure can be constructed. The weave formation and the looming draft creation are discussed in this paper which can be used as references to manufacture woven preforms with changing cross sections.

Influence of Weave on Fabric Wrinkle Recovery Property before and after Resin Treatment

Cotton fabrics with different weaves are designed and the influence of weave on wrinkle recovery property and tensile property is analyzed. Weave type plays a prominent part in determining fabric wrinkle recovery property and tensile property. Weave factor C is in direct relation to wrinkle recovery angle and in inverse relation to tensile property. This trend also exists after resin treatment. 3/1 left-twill fabric shows good wrinkle recovery angle and lest tensile loss after resin treatment.

STUDY ON THE MATHEMATICAL MODEL FOR FABRIC WEAVE DESIGN AND ITS APPLICATIONS

In the light of the mapping between[0,1]matrixes of fab-ric weaves,we establish in this paper a mathematical modelfor fabric weave design- One type of non- associative al-gebra composed of 7 basic transformations in a 2- elementfield.In view of practice,we expand the generative set ofmapping of this matematical model to cover the generaltransformation methods in traditional weave design.Takingthe algorethm of" Kronecker product" as an example,wefurthermore illustrate applied potentialities of the generativeset of mapping in the CAD of fabic weaves.

Lei Zu and Can Cong Weaved the Splendid Brocade and the Belt and Road Is Writing a Brilliant Chapter——The Chengdu Consensus of the Academic Seminar on the Land of Abundance and the Silk Road

'Dawn sees saturated reds;the town’s heavy with blooms.'We,more than 90 experts and scholars from home and abroad,attended The Academic Seminar on the Land of Abundance and the Silk Road held by the Association of Chinese Historians,the Guangming Daily Press,the Society for Chinese Archaeology,the Chinese Society on Ancient Capitals,the School of Archaeology and Museology of Peking University,and Sichuan Academy of

Non-woven Industry Weaves a Beautiful Pattern

As one of the three backbone con- sumptions (apparel, home-textile, tech- textile or industrial applications), non- woven textile industry performed well in 2005, but problems still remain. An official from the State Development and Reform Commission - China’s top planner, mapped out economic blue- prints for this fast-growing sector in 2006.

TMAS is ready to weave success and growth in Vietnam

TMAS,Textile Machinery Association of Sweden,has established a local office in the 7th district of Ho Chi Minh City.Heading the office is Mr.Tran Phuoc Thanh,Business Development Representative for TMAS in Vietnam.Mr.Tran comes with experience from the

基于OBE理念的《交通运输规划》课程思政建设与实践——以西安建筑科技大学土木工程学院为例

以全面育人为根本出发点,结合西安建筑科技大学交通运输专业工程教育专业认证实际,将交通运输行业发展与国家历史发展进程紧密融合,坚持价值导向与知识传授过程有机融合,坚持个人能力发展与国家战略发展有机融合,将社会主义道路自信、家国情怀、社会担当、知识创新、以人为本等思政教育目标与交通运输发展历程、规划理念、未来需求等理论知识相融合。通过课程思政总体架构搭建、思政元素挖掘与编织、构建思政元素智慧树,切实有效地将“课程思政”的教学目标融入交通运输规划系统设计全过程,培养学生跨学科综合思维能力,引领学生从历史、现在和未来纵深角度思考国家的道路选择、自身的社会责任,努力造就具有家国情怀和历史担当的交通运输行业复合型人才。

基于分形图案的透孔织物的设计和开发

为了丰富花式透孔织物的花纹种类,利用平纹和透孔组织的特点,采用分形图案设计,将平纹和简单透孔组织结合,形成有规律的花式透孔组织图案,以谢尔宾斯基地毯图案作为花式透孔组织的分形图案纹样,进行花式透孔织物的组织设计、上机设计及工艺参数设计等,并进行试织。结果得出:采用谢尔宾斯基地毯图案作为分形图案进行纹样设计,使平纹和透孔组织形成的花式透孔组织图案更有规律性,同时纹样新颖,具有装饰性,分形图案的使用也为多组织组合形成多种类的透孔花纹图案提供了新思路。

调研分析:西兰卡普的非遗价值

2006年,“西兰卡普”被列入首批国家级非物质文化遗产名录,其非遗价值对织锦织造行业的发展具有重要的促进作用,然而西兰卡普的创造性转化与创新性发展依旧滞后。本文从政策角度梳理国家级和省(区)级织锦技艺,探讨西兰卡普的保护措施。并通过文献法、实地调研法,以图文参照形式梳理土家人信仰寄托、民俗和技艺沉淀对于西兰卡普纹样表现的影响,思考西兰卡普非遗价值的独特所在。研究认为,西兰卡普的保护、传承不是简单的复古,而应深入了解土家族文化基因去粗取精,使其与当代文化相适应、与现代社会相协调,以人们喜闻乐见、具有广泛参与性的方式推广开来,跨越时空、超越国度、富有永恒魅力。

竹编工艺在现代家居用品设计中的应用

竹编工艺在中国有着悠久的发展历史,并入选国家级非物质文化遗产名录。随着科技快速发展以及人们消费需求的变化,传统竹编制品受到现代工业产品的巨大冲击,加强对传统竹编制品的创新设计,使之符合现代人们的消费和审美需求,是传承和创新传统竹编工艺的有效途径。文章在阐述传统竹编工艺艺术特征的基础上,从竹编工艺与新型材料结合、竹编工艺与现代工艺技术结合、创新竹编家居产品风格3个方面提出了竹编工艺在现代家居用品设计中的应用途径,可为推动传统竹编工艺的传承与发展提供参考。

苏州东吴丝织厂丝织产品设计档案综述(1951-1982)

东吴丝织厂是历史最为悠久的苏州丝绸企业之一。通过对中国丝绸档案馆收藏的大量苏州东吴丝织厂文献和丝织实物的整理、研究,系统梳理了东吴丝织厂的发展历史、历年主要品种及产品开发生产状况,并以馆藏的古香缎为例,分析、探讨了其产品的分类与设计元素的发展,以及其产品设计的叙事特征与情境表达等。研究认为:中国丝绸档案馆收藏的苏州东吴丝织厂丝织产品及相关档案,是苏州丝绸史档案研究以及丝绸企业个案研究的鲜活案例,为现代丝绸设计提供了诸多启示。