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Register a new userAccuracy of 6-7 bar mechanism with super elastic hinges linked by two joints
دراسة دقة الآلة المكونة من الآلتين السداسية و السباعية بمفاصل عالية المرونة بوصلة ذات مفصلين
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ترغب أكثر الشركات عند تصنيع أي آلة بتقليل الحاجة الصيانة و المحافظة على إمكانية إنجاز الهدف نفس الهدف بآلة وزنها أقل و بدون احتكاك و لو كان ذلك أكثر كلفة. هذه المتطلبات تتحقق باستخدام المفاصل المرنة في منظومة ما كحد أدنى. فإذا كان لدينا منظومة ميكانيكية مستوية مكونة من آلة سباعية و آلة سداسية و بمفاصل دوارنية, نبدل المفاصل الدورانية بمفاصل عالية المرونة. يقود ذلك لإمكانية بناء منظومة متينة تنجز نفس الهدف باستخدام أدنى حد للطاقة. إن الهدف الرئيسي للعمل هو بناء خوارزمية رياضية قادرة على تقييم الإزاحات للمنظومة المعتبرة قبل و بعد التبديل آخذين بعين الاعتبار أن المنظومة الجديدة ينتج عنها إزاحات إضافية ( ناتجة عن المرونة العالية ) كبيرة.
The most of companies wish to decrease maintenance and have the same target with low weight and no friction even costs much money, when a machine is built. Using flexural(also flexure) hinges in a system, at least, leads to all of that advantages. We have a planar mechanical system consisted of seven and six bar mechanism, with revolute joints, after that we replace each revolute joint with super elastic hinge. Doing so we have a gate to build a system, strongly recommended, to achieve the same goal using minimum energy. The main purpose of this paper is to elaborate a mathematical apparatus able to estimate the deviations of the considered system before and after replacing revolute joints taking into account the real performance of the new system through large bending displacements in the flexure (flexural) hinges.
References used
Christofides, N. Graph Theory: An Algorithmic Approach, Academic Press, New York, London, San Francisco, 1975
Howell, L. L , 2001. Compliant Mechanisms, John Wiley&Sons, Inc, New York-Chichester-Weinheim-Brisbane- Singapore-Toronto
Her, I., A. Midha., A Compliance Number Concept for Compliant Mechanisms, and Type Synthesis”, ASME J. Mechanisms Тransmissions Automat. Design, Vol. 109, (1987) 348– 355
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The too many uses of the five- bar mechanism and the seven-bar
one in novel mechanical systems, lead us to develop the action of
the both mechanisms. Compacting the both mechanisms gives
ability new mechanism with dual action. It is that the new o
ne is
better in achieving but It's more difficult in studying from the to
separately. The developing of the action appears in decreasing the
maintenance and having the same goal with low weight and no
friction. The experiment refers that using flexural hinges in a
system at least leads to all of that advantages. We have a plane
mechanical system consisted of five bar mechanism and seven bar
mechanism, with revolute joints. Then, we replace each revolute
joint with super elastic hinge. In this way, we have a gate to build a
system,strongly recommended, to achieve the same goal using
minimum energy. The main purpose of this paper is to elaborate a
mathematical mechanism able to estimate the deviations of the
considered system before and after replacing revolute hinges,
taking into account the real performance of the novel system
through additional large extra displacements in the flexural hinges.
The main purpose of this
research is to elaborate a mathematical apparatus able to estimate
the deviations of the considered system before and after replacing
revolute hinges taking into account the real performance of the
novel system through large bending displacements in the flexure
(flexural) hinges.
There is no doubt that the importance of decreasing maintenance
and having the same ability to achieve the same target with low
weight and no friction in nowadays artificial applications, is daily
increasing. Using flexural(also flexure) hinges in
a system, at least,
leads to all of that advantages. We are going to take a planar
mechanical system consisted of four bar mechanism and six bar
mechanism, with revolute, after that we replace each revolute joint
with super elastic hinge. Doing so we have a gate to build a system,
strongly recommended, to achieve the same goal using minimum
energy.
The main purpose of this research is to elaborate a mathematical
apparatus able to estimate the deviation of the considered system
before and after replacing revolute hinges taking into account the
real performance of the novel system through large bending
displacements in the flexure(flexural) hinges.
Due to the rapid development in the manufacturing of high
precision mechanism. It is required to reduce spending on its
manufacturing and (due to the friction). On the other it is very
important to achieve the same target with light weight and no
frictions. The all above objectives can be obtained by building the
machine to move as one body by using the elastic hinges.
The main purpose of this research is to accuracy of eight-six bar
mechanism -linked by fixed link , before and after replacing
revolute hinges with elastic ones.
The importance of pantograph mechanism and four Bar one leads
to improve of two mechanisms. As we said in last papers,
decreasing maintenance and having the same goal with low weight
and no friction in nowadays artificial applications, appears as
a
needed need. The experiment refers that using flexural hinges in a
system at least leads to all of that advantages. We have a plan
mechanical system consisted of pantograph mechanism and four
bar one, with revolute and sliding joints. Then, we replace each
revolute joint with super elastic hinge. In this way, we have a gate
to build a system, strongly recommended, to achieve the same goal
using minimum energy. The main goal of this paper is to elaborate
a mathematical mechanism able to estimate the deviations of the
considered system before and after replacing revolute hinges,
taking into account the real performance of the new system through
additional large displacements in the flexural hinges.
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