Bulletin of Prydniprovs’ka State Academy of Civil Engineering and Architecture最新文献_第2页

Main directions of improving the development of technology for manufacturing products from polymer composite materials by the method of winding 利用缠绕法制造高分子复合材料制品的技术发展方向

Bulletin of Prydniprovs’ka State Academy of Civil Engineering and Architecture Pub Date : 2019-12-27 DOI: 10.30838/j.pmhtm.2413.241219.42.599

Kai Ding

{"title":"Main directions of improving the development of technology for manufacturing products from polymer composite materials by the method of winding","authors":"Kai Ding","doi":"10.30838/j.pmhtm.2413.241219.42.599","DOIUrl":"https://doi.org/10.30838/j.pmhtm.2413.241219.42.599","url":null,"abstract":"The development of scientific and technological progress in mechanical engineering, energy, aerospace and other industries is unthinkable without the creation of new structural materials that can improve the most important parameters of engines, machines and mechanisms, assemblies, devices and increase their mass performance, reliability, service life of products and reduce their material consumption. Products and aggregates from polymer composite materials (PCM) can be obtained in various ways. In industrial production, the most widely used method of winding and pressing. Pressing can be carried out using a mixture of preliminarily fiber and a polymer binder. One of the most promising methods of forming products and assemblies from a variety of plastic is the method of winding with fiber, due to the fact that it creates the required filler structure in the factories depending on their shape and operation characteristics. All areas of effective use of polymer composite materials are reflected. This article discusses the technological capabilities and applications of traditional and new varieties of the method. Even, the results of an analysis of the prospects for the development of manufacturing technologies for products and aggregates from polymer composite materials using the winding method are presented. There are methods of dry and wet winding. Consider these winding methods. Winding is carried out on a mandrel mounted on a machine with numerical control. This method is also called the spiral winding method. Existing approaches to the development of mathematical models are described and created for the manufacture of complex structural elements, including products and an assembly with a curved spatial axis, and so on.","PeriodicalId":140933,"journal":{"name":"Bulletin of Prydniprovs’ka State Academy of Civil Engineering and Architecture","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132012804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Identification, assessment of disadvantages and potential possibilities of implementing BIM-technologies for modeling the renovation of unfinished building constructions projects 识别、评估bim技术在未完工建筑工程改造建模中的缺点和潜在可能性

Bulletin of Prydniprovs’ka State Academy of Civil Engineering and Architecture Pub Date : 2019-11-10 DOI: 10.30838/j.bpsacea.2312.221019.25.518

V. Donenko, T. Lukianova

引用次数: 0

Measurement of the speed of ultrasound determining the technical condition of stands of columnes of estacades of technological pipelines 超声波速度的测量确定工艺管道梯级柱架的技术条件

Bulletin of Prydniprovs’ka State Academy of Civil Engineering and Architecture Pub Date : 2019-11-10 DOI: 10.30838/j.bpsacea.2312.221019.50.522

V. Kolokhov, A. Sopilniak, A. S. Smyrnov

引用次数: 0

Philosophical substantiation of the system of theory and practice of reversable images 哲学实体化体系的理论与实践的可逆意象

Bulletin of Prydniprovs’ka State Academy of Civil Engineering and Architecture Pub Date : 2019-11-10 DOI: 10.30838/j.bpsacea.2312.221019.76.525

D. Tkach

引用次数: 0

The effect of electromagnetic treatment of concentrated cement slurry on the physical and mechanical properties 浓水泥浆电磁处理对其物理力学性能的影响

Bulletin of Prydniprovs’ka State Academy of Civil Engineering and Architecture Pub Date : 2019-11-10 DOI: 10.30838/j.bpsacea.2312.221019.32.519

T. M. Dubov

引用次数: 0

Estimation of mountain range cracks through the method of cracks fractal dimension determination 通过裂缝分形维数确定的方法对山脉裂缝进行估计

Bulletin of Prydniprovs’ka State Academy of Civil Engineering and Architecture Pub Date : 2019-11-10 DOI: 10.30838/j.bpsacea.2312.221019.84.526

A. Romanenko, Yevhen Kushnir, A. Ostapchuk

{"title":"Estimation of mountain range cracks through the method of cracks fractal dimension determination","authors":"A. Romanenko, Yevhen Kushnir, A. Ostapchuk","doi":"10.30838/j.bpsacea.2312.221019.84.526","DOIUrl":"https://doi.org/10.30838/j.bpsacea.2312.221019.84.526","url":null,"abstract":". The purpose of this article is to estimate fracture-based method for the determination of rock mass fractal dimension on the example of Inguletsquarry. Statement of the main material . For research plots of maximum pit were selected as excellent for the factor fracture due to use estimation by the different methods the outline of the boardside in the conduct of mining operations. Described the essence of the fractal approach method and its use for solving problems of geomechanics, namely: to evaluate the fracture of the mountain massif via the determination of the fractal dimension of the cracks at the open pit. The most typical failure mechanisms in the massif (referring to the different methods of blasting) and based on the calculation of the fractal dimension of the cracks, which are located in the rocks. Built dependency graphs of the rock massif structural weakening from its fractal dimension for different values of the scale factor. The scientific novelty of the obtained results lies in the specification of the rock massif structural weakening coefficient by determining the fractal dimension of the board. Conclusion : the results of the work are based on the following statement: comparison of the obtained results with the data of calculations of the structural weakening coefficient without taking into account the fractal dimension for the areas of the sides Inhulets quarry is designed in the traditional way shows that the use of the method of calculation structural weakening coefficient, given the fractal dimension allows to specify its value by 5…10 %. Comparisons of the obtained values of the coefficient of structural weakening showed that the use of the traditional method of contour blasting does not lead to a significant increase. The degree of violation of the contour array compared to its natural fracture (increased by 7.1 %).","PeriodicalId":140933,"journal":{"name":"Bulletin of Prydniprovs’ka State Academy of Civil Engineering and Architecture","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117084669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Problems of small river basins 小流域的问题

Bulletin of Prydniprovs’ka State Academy of Civil Engineering and Architecture Pub Date : 2019-11-10 DOI: 10.30838/j.bpsacea.2312.221019.68.524

O. Nesterova, V. V. Sharkov, O. Zhuravliоva, Ya. S. Nesterov

引用次数: 1

Calculated diagrams of a deformed soil mass at transfer of external and internal power influences to array 变形土体在外部和内部功率影响传递到阵列时的计算图

Bulletin of Prydniprovs’ka State Academy of Civil Engineering and Architecture Pub Date : 2019-11-10 DOI: 10.30838/j.bpsacea.2312.221019.58.523

A. M. Motornyi, M. A. Motornyi

引用次数: 0

Rolling resistance of mechanism with point and linear contact scheme 点接触和直线接触机构的滚动阻力

Bulletin of Prydniprovs’ka State Academy of Civil Engineering and Architecture Pub Date : 2019-11-10 DOI: 10.30838/j.bpsacea.2312.221019.19.517

L. М. Bondarenko, H. K. Diomin, A. Buratynskyi, V. S. Dorofieieva

引用次数: 0

Methods of secondary information transformation for the evaluating of object’s spatial orientation 物体空间方位评价的二次信息变换方法

Bulletin of Prydniprovs’ka State Academy of Civil Engineering and Architecture Pub Date : 2019-11-10 DOI: 10.30838/j.bpsacea.2312.221019.92.527

I. V. Ryzhkov

引用次数: 0