Subscribe to the gold package and get unlimited access to Shamra Academy
Register a new userStudy the effect of changing the different engineering parameters on the performance of the joints used in the metal structures on fire to find their optimal designs by CAD
دراسة تأثير تغير البارامترات الهندسية المختلفة على أداء الوصلات المستخدمة في المنشآت المعدنية على الحريق لإيجاد تصاميمها المثلى بمساعدة الحاسب
1432
3 3
0.0
(
0
)
Created by
Shamra Editor
Ask ChatGPT about the research
يقدم هذا البحث دراسة بمساعدة طريقة العناصر المنتهية ثلاثية الأبعاد و استخدام برنامج CATIA V5 لمعرفة سلوك وصلة جائز – عمود المستخدمة في المنشآت المعدنية عند درجات حرارة مرتفعة (على الحريق). في هذه المقالة سوف نقدم تحليل باستخدام طريقة العناصر المنتهية باستخدام برنامج CATIA V5 لتأثير البارامترات الهندسية المختلفة ( سماكة الصفيحة , قطر البرغي, أعصاب التقوية) على سلوك الوصلات المستخدمة في المنشآت المعدنية على الحريق. و تم دراسة تأثير عدد البراغي على الاجهادات و الانتقالات في الوصلة و مقارنتها بحالات اللحام و عرضنا أيضا دراسة تأثير استبدال أعصاب التقوية بلحام من الطرفين العلوي و السفلي على سلوك الوصلة المدروسة. و قمنا بدراسة و تحليل النموذج المدروس و الحصول على مخططات التشوه و الفشل الناتج عند درجات الحرارة العالية و مخططات الدوران و درجات الحرارة التي توضح سلوك هذه الوصلة على الحريق بالإضافة إلى ذلك تم الحصول على مخططات الاجهاد و الانفعال للوصلة و مخططات الانتقال و الحمولة عند درجات حرارة مختلفة و سلوك هذه الوصلة عند هذه الدرجات المختلفة.
This research presents a study with the help of Finite Element Method and the use of CATIA V5 program to know the behavior of a permissible link - column used in metal structures at high temperatures (on fire). In this article we will present an analysis using the finite element method using the CATIA V5 program for the effect of different engineering parameters (plate thickness, screw diameter, reinforcement nerves) on the behavior of joints used in metal structures on fire. We also studied the effect of the number of bolts on the stresses and transitions in the link and their comparison with the welding cases. We studied and analyzed the studied model and obtained the deformation and failure schemes at high temperatures, the flow charts and the temperatures that show the behavior of this link to the fire. We also obtained the stress and strain schemes for the link and the transport and load schemes at different temperatures and the behavior of this link at these different temperature.
References used
SPYRO S. DAVISON J.B and PLANK R. J " Experimental and analytical investigation of the ‘compression zone’ component within a steel joint at elevated temperatures". "Journal of Constructional Steel Research 60 (2004) 841–865
BLOCK F M ., BURGESS I W. " The development of a component-based connection element for endplate connections in fire". Fire Safety Journal 42 (2007) 498–506
WANG W Y , LI G Q " Experimental study and spring-component modeling of extended end-plate joints in fire ". Journal of Constructional Steel Research 63 (2007) 1127–1137
rate research
Read More
Many constructionl systems were used in the construction of
airports. These systems vary according to the development of the
various aircraft models as well as to the increasing number of
passengers. This study will include a review of some airpor
ts
buildings, which had been built depending on the metal
construction technique that achieved larger architectural
dimensions and spaces for passenger terminal in terms of shape and
function.
This research includes a study of the evolution of the metal
technique used in airport construction especially for passenger
terminal showing its effect in realizing the architectural space
including its dimensions and spaces and in meeting the functional
requirements inside it particularly securing passengers safety,
comfort, and the ease of controlling their movement to the taking
off places, as well as securing ventilation and natural lighting of the
building.
Breast cancer is the most widespread types of cancer among women. An efficient
diagnosis in its early stage can give women a better chance of full recovery. Calcification
is the important sign for early breast cancer detection. Mammography is the m
ost effective
method for breast cancer early detection using low radiation doses. The studies improved
the sensitivity of mammogram from 15% to 30% based on Computer Auto-Detection CAD
systems, which are used as a “second opinion” to alert the radiologist to structures that,
otherwise, might be overlooked. This article summarizes the various methods adopted for
micro-calcification cluster detection and compares their performance. Moreover, reasons
for the adoption of a common public image database as a test bench for CAD systems,
motivations for further CAD tool improvements, and the effectiveness of various CAD
systems in a clinical environment are given.
A proper matching of agricultural machinery with properties of materials forms the
essential requirements which lead to best performance of machine.
To achieve that goal, availability of data and precision analysis on engineering and
physical prop
erties of these materials is required. This forms important and necessary data
base for the design, development and structure of agricultural machinery and equipments,
control and analysis of machines and determination of efficiency of machines.
This research was carried out to study some engineering and physical properties of seeds of
common Syrian crops to be used in the design and development of some agricultural
machinery and equipments.
Results provided the shapes and dimensions of cells of feeding devices for planting seeds
of some crops namely, wheat, maize, lentil, pea, chick-pea, kidney bean, broad bean and
cotton.
In addition a set of empirical equations were established to be used to predict, with
reasonable accuracy, the physical properties of crops seeds based on measurement of any
of three dimensions (length, width and thickness).
الخواص الهندسية للبذور
الخواص الفيزيائية للبذور
أبعاد البذور
جهاز التلقيم
خلايا التلقيم
جهاز التلقيم ذو الأسطوانة المموجة
آلة البذار
آلة التسطير
Engineering Physical properties of seeds
Physical properties of seeds
Dimensions of seeds
Feeding device
Cells of feeding
Fluted forced feed
Planter
Grain drill
المزيد..
In this paper, we assess the Voice Over Internet Protocol
performance by comparing the performance of two protocols
used in VOIP such as SIP and H.323. Moreover, we evaluate
the quality indicators such as delay and packets loss. For this
purpose
OPNET simulator is used as suitable simulation
technology.
With the rapid growth of the size of the data stored in the cloud systems, the need for
effective data processing becomes critical and urgent. This research introduces a study of
the most important characteristics of databases management systems: H
ive, SQLMR, and
MariaDB Galera. Hive is a cloud database management system. SQLMR is a hybrid
system, which depends on the integration between the cloud and traditional systems
capabilities. While MariaDB Galera is a traditional database management system
developed to cope with the cloud characteristics. In this research, we show the most
important developments that have been on those systems, and then we compare their
performance in data processing based on the execution time of query operations with the
change of the volume of data. That is to identify the performance of those systems
practically and to know the developing requirements for access to optimized data
management system, and to help users in the selection of the database system that achieves
their requirements in terms of availability and scalability.
Log in to be able to interact and post comments
comments
Fetching comments
Sign in to be able to follow your search criteria
