The Vibrating Failure Research for One Aero-Engine

2013 ◽  
Vol 401-403 ◽  
pp. 335-338
Author(s):  
Zhen Bo Xie ◽  
Hong Wei Li ◽  
Jing Xie

Analyze the origins of the vibration according to the expressions during aero-engine running. Study the vibration principle. Create the fault tree of the aero-engine vibrating failure. And with the fault tree analyze the common vibrating failure during production process. Generalize the diagnosing and debugging-aid methods for aero-engine vibrating failure.

Author(s):  
Ana Sedeño-Valdellós

Resumen: El cine sin autor es un proceso de producción audiovisual que problematiza algunas de las ideas canónicas o fijas de la traslación de la autoridad desde un individuo hasta la gente común en temas de producción y realización audiovisual. En otros trabajos anteriores ya se han destacado algunas de sus características y analizado obras y prácticas de un colectivo (el de Cine sin Autor o CsA) que ha dado lugar a lo que llamábamos sinautoría audiovisual, con un objetivo pedagógico y de propuesta alternativa de lenguaje audiovisual.El texto presente trata de enmarcar este colectivo audiovisual en la tradición del artivismo y activismo audiovisual y analizar algunos últimos proyectos del colectivo, que respaldan una propuesta formal alternativa, y permiten hablar de una representación experimental alejada de una narración o representación clásica. Il corpo qui sogna, Ciak o Mátame si puedes son algunos de ellos.Abstract: Without authorship is an audiovisual production process that problematize some of the canonical or fixed ideas of the transfer about authorshio and authority from one individual to the common people on issues of audiovisual production. In previous works we have already highlighted some of its characteristics and analyzed some works and practices from a collective (Cine sin Autor or CsA) that we called as "audiovisual without authorship", an alternative for an audiovisual language and with a pedagogical purpose.This text tries to frame this audiovisual collective in the tradition of artivism and audiovisual activism and to analyze some recent projects of the group, which support a formal proposal for an alternative, and allow to speak about an alternative narrative and an experimental representation. Il corpo qui sogna, Ciak or Mátame si puedes are some of them.


Author(s):  
Nuzul Ardiansyah ◽  
Hana Catur Wahyuni

Small and medium business of industrial bags and suitcases intako located in tanggulangin sidoarjo is a center producing varrious products such as bags, suitcases, and jacket in exotic store. Along with the increasing amount of production it must be coupled with the improvement of quality in order to be able to meet customer satisfaction. But in production activities often experience some obtacles one of them is product defect caused by human error and engine factor. This study uses the method Failure Mode and Effect Analysys (FMEA)  to identify each stage of the process and the method Failure Tree Analisys (FTA) to find the root couse of failure . there are 6 potential failures ot the 4 production process of making bags with the highest RPN value such as sewing machine often having trouble with the value of RPN 504 and there are 12 basic event of FTA tree error depiction affecting product quality in exotic UKM intako.


Author(s):  
Yanuar Alfianto

<p align="center">PT. Garuda Metalindo, which is engaged in the manufacturing industry, is currently experiencing a product failure of 2.5% in the production process and this exceeds the failure tolerance set by the company, which amounts to 10 units of 1000 units per process function or about 1% in the production process. Failure tolerance that exceeds the limit so that improvements need to be made to reduce the number of product defects in each production process. This study uses Fault Tree Analysis (FTA) to identify the causes of product defects based on the current production process, the next stage using Failure Mode and Effect Analysis (FMEA) to identify potential failures, modes, potential effects of failure, causes of failure, detection modes, and determine the rating against severity, occurrence, and detection on the risk priority number in the production process. Based on the results of the assessment on the RPN, a cold forming process with a score of 576, surface finishing with a score of 512 was obtained, machining 1 with a score of 441, and machining 2 with a score of 392. Proposed improvements for cold forming defects by monitoring and making checking tools (jigs), defect surface finishing by supervising and making product shelves, machining defects 1 with product inspection and making tools for checking (jig), and replacement of drill bit types, machining defects 2 with lamp and insert replacement and periodic inspection. By applying these proposals it is expected to reduce the level of product disability.</p>


2021 ◽  
Vol 924 (1) ◽  
pp. 012062
Author(s):  
A L Rucitra ◽  
A U F Amna

Abstract Resina colophonium is a product that is produced from the processing of pine sap. This product is widely used for adhesives, additives for beauty products and mixtures of paints and varnishes. One of the companies engaged in the production of resina colophonium is Company X. Production process is an important aspect of the company, so any problems must be avoided to eliminate product defects. One way that can be done to avoid problems in the production process is to carry out proper quality control. The purpose of this study was to analyze the quality control of the production process at Company X. The quality control method used is the integration of the Statistical Quality Control (SQC) method to determine the frequency of problems and Fault Tree Analysis (FTA) to complete identification by looking for the causes of these problems so that problem did not repeat. Based on the results of the quality control analysis, it is found that the most serious problem that affects the quality of the production process lies in the labor aspect with a value number is 38.46% and the root of the potential cause is the number of workers who are not following the current work.


Author(s):  
Tao Feng ◽  
Rongxing Duan ◽  
Yanni Lin ◽  
Yining Zeng

A new optimal sensor placement is developed to improve the efficiency of fault diagnosis based on multiattribute decision-making considering the common cause failure. The optimal placement scheme is selected based on the reliability of the top event on condition that the number of sensors is preset. Specifically, a β-factor model is introduced to deal with the common cause failure, and dynamic fault tree is used to describe the dynamic failure behaviors. Besides, a dynamic fault tree is converted into a dynamic Bayesian network to calculate the reliability parameters, which construct the decision matrix. Furthermore, an efficient TOPSIS algorithm is adopted to determine the potential locations of sensors. In addition, a diagnostic sensor model is developed to take into account the failure sequence between a sensor and a component using a priority AND gate, and the failure probability of the top event for all sensor placement scenarios is calculated to determine the optimal sensor placement. Finally, a case is provided to prove that the common cause failure has made a considerable impact on the sensor placement.


Target ◽  
2010 ◽  
Vol 22 (1) ◽  
pp. 94-111 ◽  
Author(s):  
Hanna Risku

This article provides a brief presentation of the development of some cognitive scientific views on technical communication and translation. I look in detail at one of the latest cognitive scientific trends, namely Situated and Embodied Cognition. According to this approach, humans are creative beings who are dependent on their physical and psychological circumstances. I provide a brief overview of the background to situated, embodied cognition, present some of its main concepts and conclude with a number of proposals about how findings in this field can be used to further develop research in Technical Communication and Translation Studies. In doing so, I argue that the new findings in cognitive science will necessarily change some of the common concepts and methodological traditions with regard to the actual text production process and competencies.


2020 ◽  
Vol 21 (2) ◽  
pp. 153-164
Author(s):  
Štefan Kassay

The purpose of the article is to present the concept and practice of implementing the idea regarding the construction and functioning of the European platform for the production process, which is an example of international business. The main efforts associated with the process of creating such a platform focus on spreading the good name of the country abroad. This is possible in connection with increasing the efficiency of enterprises and bringing the idea of innovation closer to creating a symbiosis of science with production practice. This leads to an increase in the economic strength of the countries involved. The idea of a “common European production platform” was created in the specific conditions of production processes in I.D.C. Holding, S.A. in Slovakia, which has a branch in Poland (I.D.C. Polonia, Krakow). The socio-economic results achieved by the holding over the past quarter-century have influenced the formulation of the question – how and with what assumptions is it possible to create a European production platform. Such a question becomes the main problem that needs to be solved and the question posed in this article requires an answer related to the development of the following issues: − company profile; − business achievements I.D.C; − basic conditions and ideas of the common platform. An indication of the possibilities to implement the above is provided in the article.


2013 ◽  
Vol 680 ◽  
pp. 577-581
Author(s):  
Wei Zhen Wang ◽  
Xiao Nong Qian ◽  
Ya Zhen Wang ◽  
Dan Li

Based on the splicing of knitting and tatting fabrics and the optimization of process realization route, the author tries to improve the drawbacks in traditional splicing of knitting and tatting fabrics in terms of process technology and thus extend their respective advantageous properties. Through the analysis of fabric properties difference, integration of structural characteristics of parts, optimization of sewing process and post-production process reengineering, the author proposes the prerequisites and principles related to the splicing of two fabrics, and discusses the common problems in the splicing of knitting and tatting fabrics and specific process optimization route.


2012 ◽  
Vol 729 ◽  
pp. 1-6
Author(s):  
Klára Pflischl ◽  
Péter Barkóczy ◽  
Árpád Kovács ◽  
Ádám Czibik

Examination of three findings (a hammer axe from the Bronze Age, a bracelet of Aunjetitz, and a pick with neck-disc) from the Bronze Age was performed by the Research Group on Archeometallurgy of the University of Miskolc. The chemical composition, the phase constituents and the microstructure of the findings was examined. Beyond the common analysis of chemical composition features of the microstructure was examined, and data from the production process were collected (metallurgical processes, casting, cold and hot deformation). It was stated that the bracelet is produced by casting; the hammer axe and the pick give the final shapes by hammering after casting. Not only the annealed and hammered microstructure, but the casted primer microstructures were analyzed by application of different etching techniques. The chemical compositions and structures of inclusions were analyzed by SEM-EDS technique. The amount, shape and ordering was examined of the inclusion on micrographs. The aforementioned results gives a detailed study of producing process of the findings which was compared the newest technological knowledge.


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