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Register a new userA mathematical model to analyze the structure of mechanisms with different complexity levels and mobility values
المودول الرياضي لتحليل بنية الآليات بمستويات تعقيد و قيم تحريكية مختلفة
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Added by
Aِl-Baath University ورقة بحثية
Publication date
2016
fields
Mechanical Power Engineering
and research's language is
العربية
Authors
نزيه يوسف( باحث )
Created by
Shamra Editor
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تم في هذا البحث وضع المودول الرياضي لتحليل بنية الآليات بمستويات تعقيد و تحريكيه مختلفة اضافة لعرض نتائج الحسابات بجداول و تطبيق ذلك على أليات بقي تحريكيه مختلفة و تم عرض رسوم تجميع الخيارات المختلفة للميكانيزمات المدروسة و توضيح كيفية ازالة الارتباطات الزائدة.
In this research the development of mathematical analysis of the mechanisms Model structure levels of complexity and different mobility Add to display the results of the calculations tables and apply it to different mechanisms mobility values were displayed assemble the different options for the mechanics of thoughtful and explain how to remove the excess links fees.
References used
Kennet H.J,1999-Kinematics ,dynamics,and design of machine New York ,640p
Grant R.F.,George L.C.,1993Analyicl mechanics Copyrights and Permissions Department, Harcourt Brace&Company,8th Floor, Orlando, Florida 32887
Jing –Shan Zhao, Zhi-Jing Feng, Jing-Xin Dong2006 Computation of the configuration degree of freedom of a spatial parallel mechanism by using reciprocal screw theory, Mechanism and Machine Theory ,Tom41, 1486-1504p
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adding four different levels of phosphogypsum as much as (0.00,
6.72, 13.44, 20.16)ton / hectare (three replicates for eac
h treatment)
on bulk density and structure stability for clay soil has taken from
(Kattina).
The results showed improvement in the stability of the structure of
soil specially (0.25-1)mm, increasing in aggregation degree ,
increasing of the rate of total porosity ,air filled porosity in
comparison to the control at the two levels(13.44, 20.16)ton/hectare
and also by increasing the added level . Whereas the dispersion
ratio , and Bulk density were decreased when increasing the level
of phosphogypsum at the same two levels.
The main achieved results in this study showed , a significant
increase in aggregation degree in the soil when increasing the ratio
of the added phosphogypsum at the levels( 6.72, 13.44, 20.16) in
comparasion with control .
In other way the dispersion ratio was decreased and had negative
relationship when increasing the level of the added
phosphogypsum in comparasion with control .
The Dams are large and complex projects, and are generally characterized by the
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of the cost and time, this is due to the risks that intercepted projects during the
implementation phase and directly influenced the basic project objectives ( cost and time
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This research experiences to the reality of the implementation of the late dams,
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influenced the basic objectives of the project (cost - time - quality), through a field survey
study includes more than thirty-five dams in Syria.
For this purpose have been used survey was distributed to a slice of experts and
technicians in the form of dams, has enabled to obtain a list of the risks faced by the
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arrange those risks according the Risk Criticality Number (RCN) for each risk early in
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Changing is a natural Phenomenon. It guides all of existents
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spontaneous operation. To have these benefits we are studying these two
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In this paper, we introduce a continuous mathematical model to
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arch is a coordinated checkpoint/recovery mechanism and the
study based on stochastic model of different performance critics of
parallel application on parallel and distributed environment.
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