System Safety: Human - Technical Facility - Environment最新文献_第6页

Prediction of the Influence of Printing Parameters on the Residual Stress Using Numerical Simulation 用数值模拟方法预测印刷参数对残余应力的影响

System Safety: Human - Technical Facility - Environment Pub Date : 2022-12-01 DOI: 10.2478/czoto-2022-0015

Hussein Alzyod, P. Ficzere

{"title":"Prediction of the Influence of Printing Parameters on the Residual Stress Using Numerical Simulation","authors":"Hussein Alzyod, P. Ficzere","doi":"10.2478/czoto-2022-0015","DOIUrl":"https://doi.org/10.2478/czoto-2022-0015","url":null,"abstract":"Abstract Fused Deposition Modeling is an additive manufacturing technology that is used to create a wide range of parts and applications. Along with its benefits, there are some challenges regarding the printed parts’ mechanical properties, which are associated with printing parameters like layer thickness, printing speed, infill density, printing temperature, bed temperature, infill pattern, chamber temperature, and printing orientation. One of the most crucial challenges in additive manufacturing technology is the residual stress, which significantly affects the parts like fatigue life, cracks propagation, distortions, dimensional accuracy, and corrosion resistance. Residual stress is hard to detect in the components and sometimes is costly to investigate. Printing specimens with different parameters costs money and is time-consuming. In this work, numerical simulation using Digimat-AM software was employed to predict and minimize the residual stress in printed Acrylonitrile Butadiene Styrene material using Fused Deposition Modeling technology. The printing was done by choosing six different printing parameters with three values for each parameter. The results showed a significant positive correlation between residual stress and printing temperature and infill percentage and a negative correlation with layer thickness and printing speed. At the same time, we found no effect of the bed temperature on the residual stress. Finally, the minimum residual stress was obtained with a concentric infill pattern.","PeriodicalId":315981,"journal":{"name":"System Safety: Human - Technical Facility - Environment","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134478224","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

Use of Toyota Principles in Questions to Assess the Importance of Work Safety in the Heavy Industry 在问题中使用丰田原则来评估重工业安全生产的重要性

System Safety: Human - Technical Facility - Environment Pub Date : 2022-12-01 DOI: 10.2478/czoto-2022-0009

M. Jagusiak-Kocik

引用次数: 0

Transport Safety in Road Traffic - The Condition and Preventive Measures as Assessed by the Respondents 道路交通安全-受访者评估的情况及预防措施

System Safety: Human - Technical Facility - Environment Pub Date : 2022-12-01 DOI: 10.2478/czoto-2022-0008

Mariusz Sroka

引用次数: 0

Occupational Hazards Counteraction in Industrial Work Environment – Selected Management Problems 工业工作环境中的职业危害对抗-选定的管理问题

System Safety: Human - Technical Facility - Environment Pub Date : 2022-12-01 DOI: 10.2478/czoto-2022-0029

J. Tabor, R. Moraru

引用次数: 0

The Impact of Selected Parameters on the efficiency of PV Installations - Simulation Test of the 1 MW PV Farm in the PVSyst Program 选定参数对光伏装置效率的影响——PVSyst项目中1兆瓦光伏电站的模拟测试

System Safety: Human - Technical Facility - Environment Pub Date : 2022-12-01 DOI: 10.2478/czoto-2022-0019

Patrycja Walichnowska, A. Mroziński, A. Idzikowski

引用次数: 0

Production Cost Calculation Approach Based on Data Collected During Manufacturing Process 基于制造过程数据的生产成本计算方法

System Safety: Human - Technical Facility - Environment Pub Date : 2022-12-01 DOI: 10.2478/czoto-2022-0003

G. Krzesniak

{"title":"Production Cost Calculation Approach Based on Data Collected During Manufacturing Process","authors":"G. Krzesniak","doi":"10.2478/czoto-2022-0003","DOIUrl":"https://doi.org/10.2478/czoto-2022-0003","url":null,"abstract":"Abstract The aim of the article is to present a proposal and discuss the production cost calculation procedures based on data collected during manufacturing process, according to standard SPC control chart evaluation. It is applied as a tool to support the process of continuous improvement of the manufacturing process and improve profitability by reducing the cost of production. Research methodology - the study uses the results of a literature review on the issue of cost analysis and their modeling. Key elements are the main cost components, but also those that are considered less important and may be overall decisive. Application of Statistical Process Control - as a method of data collection for cost modeling to improve overall cost structure is proposed. Originality / value - the considerations presented in the study may be the basis for determining the key components of the cost of production. The proposed simulation model allows for the determination of the main quality cost factors. This, in turn, should allow to define the main directions of searching for the optimization of the product cost in order to achieve the expected level of cost and quality.","PeriodicalId":315981,"journal":{"name":"System Safety: Human - Technical Facility - Environment","volume":"137 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115683045","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: 1

Importance of Accident Analysis Methods for Improvement of OHS Management 事故分析方法对提高职业健康安全管理的重要性

System Safety: Human - Technical Facility - Environment Pub Date : 2022-12-01 DOI: 10.2478/czoto-2022-0028

J. Tabor

引用次数: 0

The Identification of Factors Describing the Concept of Company Development – Case Study 描述公司发展概念的因素识别-个案研究

System Safety: Human - Technical Facility - Environment Pub Date : 2022-12-01 DOI: 10.2478/czoto-2022-0025

K. Mielczarek

引用次数: 0

The Management of the Technological Process of a Product on the Example a Shrink Film in the Aspect Life Cycle Assessment 以某收缩膜产品生命周期评价中的工艺过程管理为例

System Safety: Human - Technical Facility - Environment Pub Date : 2022-12-01 DOI: 10.2478/czoto-2022-0001

A. Idzikowski, Patrycja Walichnowska

{"title":"The Management of the Technological Process of a Product on the Example a Shrink Film in the Aspect Life Cycle Assessment","authors":"A. Idzikowski, Patrycja Walichnowska","doi":"10.2478/czoto-2022-0001","DOIUrl":"https://doi.org/10.2478/czoto-2022-0001","url":null,"abstract":"Abstract Nowadays Life Cycle Assessment is the most popular tool that can be used to see environmental load of a machine, a product or a process. LCA defines the impact throughout the life of a product, from the extraction or production of raw material from natural resources, through production, use and final disposal. This method focuses on the assessment of the impact of the tested object on the area of the ecosystem, human health and the resources use. LCA is a very helpful tool in the environmental assessment that is required and results from the current policy of the European Union, which requires the member states to minimize the harmful impact on the environment of every aspect of human life. The publication discusses the LCA life cycle assessment method as one of the methods allowing to estimate the environmental impact of a technological process or some product. The article shows also the history of LCA, the individual stages, advantages and disadvantage this method. This paper it is also an introduction to carry out LCA analysis on the example of a process with the use of the shrink film.","PeriodicalId":315981,"journal":{"name":"System Safety: Human - Technical Facility - Environment","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130358944","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: 1

Applying Elvie - Tool for Psychosocial Risk Assessment: Results of a Case Study 应用Elvie -心理社会风险评估工具:个案研究的结果

System Safety: Human - Technical Facility - Environment Pub Date : 2022-12-01 DOI: 10.2478/czoto-2022-0026

R. Moraru, Mirosław Posyłek

{"title":"Applying Elvie - Tool for Psychosocial Risk Assessment: Results of a Case Study","authors":"R. Moraru, Mirosław Posyłek","doi":"10.2478/czoto-2022-0026","DOIUrl":"https://doi.org/10.2478/czoto-2022-0026","url":null,"abstract":"Abstract About half of European workers believe that stress is common in their workplace and that it is the cause of about half of all lost working days. In Europe, 25% of workers report suffering from work stress all the time or most of their working time, with a similar percentage reporting that stress adversely affects their health. Estimates of costs borne by employers and society are considerable, amounting to tens of billions of euros at European level. Considering the exponential increase in the last decade of the impact of occupational stress and the direct implications on the health and well-being of workers, coupled with the low level of attention paid to this risk by employers and labor inspectorates in Romania, this paper aimed at developing a company-level research to validate the applicability of a specific psychosocial risk assessment tool. The preliminary results obtained confirmed the need to increase the real attention paid to this component of the health status of workers - and implicitly of enterprises - allowing the substantiation of a plan of measures designed to minimize psychosocial risks in the investigated company.","PeriodicalId":315981,"journal":{"name":"System Safety: Human - Technical Facility - Environment","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134644408","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