إن أهمية آلة الرسم الخرائطية و الآلة الرباعية تقود إلى تطوير كلتا الآلتين. سبق و ذكرنا
في أبحاث سابقة أهمية تقليل أعمال الصيانة مع المحافظة على إمكانية إنجاز نفس
الهدف بوزن أقل و بدون احتكاك, بكونها حاجة ملحة في التطبيقات الصناعية. تدل
التجربة أن استخدام المفاصل المرنة في منظومة ما يحقق جميع هذه الفوائد كحد أدنى.
في البحث لدينا منظومة ميكانيكية مستوية مكونة من آلة الرسم الخرائطية و الآلة الرباعية
و بمفاصل دورانية و انسحابية. بتبديل المفاصل الدورانية بمفاصل عالية المرونة. هذا يعني
بناء منظومة متينة تنجز نفس الهدف بأدنى حد للطاقة. إن الهدف الرئيسي للبحث هو
تشكيل منظومة رياضية قادرة على تقييم الازاحات للمنظومة المعتبرة قبل و بعد التبديل,
آخذين بعين الاعتبار أن المنظومة الجديدة ينتج عنها إزاحات إضافية كبيرة (نتيجة
المرونة العالية).
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.
References used
Howell, L. L. Compliant Mechanisms, New York-Chichester- Weinheim-Brisbane-Singapore-Toronto, John Wiley&Sons, Inc., 2001
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
Midha, A. T. W. Norton, L. L. Howell., On the Nomenclature and Classification of Compliant Mechanisms: the Components of Mechanisms, Proc. ASME Design Engineering Technical Conf., Arizona, Vol. 47, (1992), 13-16
In this paper we have a plan mechanical
system consists of two pantograph mechanisms, with revolute and
sliding joints, linked by fixed link . Then, we replace each revolute
joint with super elastic hinge. In this way, we have a system,
strongly recommended, to achieve the same goal using minimum
of energy.
We have a plane 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. So that, we have a system, strongly recommended, to
achieve the
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.
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
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