Simulation of Heat Stress and Fatigue on Engine Case

2013 ◽  
Vol 397-400 ◽  
pp. 413-417
Author(s):  
Chang Hui Hou ◽  
Hong Li Fan ◽  
Qian Sang ◽  
Ji Ping Lu
Keyword(s):  
Heat Stress ◽  
Fatigue Life ◽  
Working Conditions ◽  
Research Result ◽  
High Stress ◽  
Heat Distribution ◽  
Transient Stress ◽  
Working Stress ◽  
Maximal Stress ◽  
Safe Working

In this paper, a model of an engine case is designed in Pro/Engineer for fatigue simulation. The meshing is created by the way of Abaqus. According to the working conditions, the boundary restriction of the simulation is defined. By the simulation, the heat distribution of the engine case is given, the causes of relatively high temperature areas are discussed, and the heat-stress distribution is drawn too. The high stress area in the engine case is discovered. The simulation result shows that the steady working stress is about 60MPa, the transient stress is between 90MPa to 120MPa, and the maximal stress is 136MPa. Based on the heat stress the fatigue life of the engine case is analyzed. The research result is a reference of the engine case safe working.

Fatigue Analysis and Simulation on Engine Case

2012 ◽  
Vol 215-216 ◽  
pp. 698-703
Author(s):  
Fan Wu Meng
Keyword(s):  
Heat Stress ◽  
Fatigue Life ◽  
Working Conditions ◽  
Research Result ◽  
High Stress ◽  
Heat Distribution ◽  
Transient Stress ◽  
Working Stress ◽  
Maximal Stress ◽  
Safe Working

In this paper, a model of an engine case is designed in Pro/Engineer for fatigue simulation. The meshing is created by the way of Abaqus. According to the working conditions, the boundary restriction of the simulation is defined. By the simulation, the heat distribution of the engine case is given, the causes of relatively high temperature areas are discussed, and the heat-stress distribution is drawn too. The high stress area in the engine case is discovered. The simulation result shows that the steady working stress is about 60MPa, the transient stress is between 90MPa to 120MPa, and the maximal stress is 136MPa. Based on the heat stress the fatigue life of the engine case is analyzed. The research result is a reference of the engine case safe working.

Actual issues of hygienic regulation and creation of safe working conditions at pharmaceutical manufacturing enterprises

2020 ◽  
Vol 60 (10) ◽  
pp. 640-644
Author(s):  
Vadim M. Vasilkevich ◽  
Ruslan V. Bogdanov ◽  
Elena V. Drozdova
Keyword(s):  
Pharmaceutical Industry ◽  
Working Conditions ◽  
Experimental Studies ◽  
Pharmaceutical Products ◽  
Laboratory Animals ◽  
Production Environment ◽  
Basic Principles ◽  
Toxicological Studies ◽  
Health Disorders ◽  
Safe Working

Introduction. The working conditions of pharmaceutical industry workers are characterized by the combined effect of unfavorable factors of the production environment, among which the leading one is chemical. The aim of study is to substantiate the basic principles and criteria for hygienic regulation of pharmaceutical products in their production to ensure safe working conditions for employees based on the results of their own research and existing requirements of technical regulations. Materials and methods. Analysis of working conditions and the prevalence of health disorders in pharmaceutical workers (according to literature data), toxicological studies of pharmaceutical substances on laboratory animals, scientific justification of hygiene standards in the air of the working area. Results. Among employees of the pharmaceutical industry, the predominant forms of production-related health disorders are diseases of the respiratory system, as well as skin dermatitis of allergic origin, liver and biliary tract diseases. Based on the results of experimental studies of domestic pharmaceutical products for the treatment of cardiovascular, oncological and mental diseases that have priority socio-economic significance, the basic principles and features of the practice of justifying the hygienic standards of medicines in the air of the working area are developed and systematized. Conclusions. During hygienic rationing of medicines, it is necessary to use a differentiated approach that allows, based on the analysis of information about the chemical structure, physical and chemical characteristics, production conditions, pharmacotherapeutic activity, and the results of studying the toxic effect in an experiment on laboratory animals, to determine the maximum permissible content in the air of the working area of medicines or to justify the prohibition of isolation with reasoned recommendations for their safe production.

Professional risk in processing processes complex (review of literature)

2020 ◽  
pp. 29-37
Author(s):  
L. Mavrina ◽  
E. Shaikhlislamova ◽  
I. Khasanova ◽  
L. Karimova ◽  
N. Muldasheva ◽  
...  
Keyword(s):  
Working Conditions ◽  
Urgent Problem ◽  
Review Of Literature ◽  
Complex Materials ◽  
Work Analysis ◽  
Production Factors ◽  
Bibliographic Data ◽  
Industrial Injuries ◽  
The Impact ◽  
Safe Working

The relevance of the problem. Ensuring safe working conditions is currently an urgent problem of our time. Purpose of work. Analysis of bibliographic data on issues of occupational risk, industrial injuries among workers of the processing complex. Materials and methods. To achieve this goal, materials related to this topic were studied in the works of domestic and foreign scientists. Results. A lot of scientific works are devoted to the problem of assessing professional risk in the production of a processing complex. Modern research has proved that risk assessment is one of the main methods for analyzing the impact of various production factors on an employee. Conclusion Occupational morbidity and industrial injuries are a consequence of unsatisfactory conditions and labor protection in enterprises.

Theology as Work: The Mandatum and the Rights of Labor

Horizons ◽  
2002 ◽  
Vol 29 (1) ◽  
pp. 128-134
Author(s):  
Patrick T. McCormick
Keyword(s):  
Academic Freedom ◽  
Working Conditions ◽  
Common Good ◽  
Catholic Social Teaching ◽  
Social Teaching ◽  
The Common Good ◽  
The Common ◽  
The Right ◽  
The Church ◽  
Safe Working

ABSTRACTMany oppose the mandatum as a threat to the academic freedom of Catholic scholars and the autonomy and credibility of Catholic universities. But the imposition of this juridical bond on working theologians is also in tension with Catholic Social Teaching on the rights and dignity of labor. Work is the labor necessary to earn our daily bread. But it is also the vocation by which we realize ourselves as persons and the profession through which we contribute to the common good. Thus, along with the right to a just wage and safe working conditions, Catholic Social Teaching defends workers' rights to a full partnership in the enterprise, and calls upon the church to be a model of participation and cooperation. The imposition of the mandatum fails to live up to this standard and threatens the jobs and vocations of theologians while undermining this profession's contribution to the church.

On the Theory of the Calculation of the Constant Velocity Ball Transmission Joints

1976 ◽  
Vol 98 (3) ◽  
pp. 852-857 ◽  
Author(s):  
N. Bellomo
Keyword(s):  
Working Conditions ◽  
Load Distribution ◽  
Constant Velocity ◽  
Numerical Calculations ◽  
Torque Capacity ◽  
Safe Working ◽  
General Method

In this work a general method for the calculation of constant velocity ball transmission joint with straight grooves is studied. Numerical calculations concerning the forces transmitted by each driving ball and the torque capacity have been realized with reference to known and manufactured types of joint. The study allows one to deduce some important and experimentally confirmed designing rules and gives a precise picture of the load distribution in the joint as well as the limits of safe working conditions.

Ensuring safe working conditions during silicide firing of silicon carbide heaters

Refractories ◽  
1973 ◽  
Vol 14 (5-6) ◽  
pp. 388-391
Author(s):  
D. I. Shrabman ◽  
M. V. Perel'son ◽  
L. L. Gorkavenko
Keyword(s):  
Silicon Carbide ◽  
Working Conditions ◽  
Safe Working

Improvement of measures to ensure safe working conditions for staff of the bureau of forensic medicine

2021 ◽  
Vol 64 (6) ◽  
pp. 8
Author(s):  
M.I. Timerzyanov ◽  
P.V. Minaeva ◽  
N.V. Morozyuk ◽  
E.V. Chugunova ◽  
A.R. Abdrakhmanov ◽  
...  
Keyword(s):  
Working Conditions ◽  
Forensic Medicine ◽  
Safe Working
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