نتایج جستجو برای: velocity or displacement time histories for practical applications
تعداد نتایج: 11639707 فیلتر نتایج به سال:
A previously introduced two phase model was used to assess its capability in predicting the behavior of reinforced soil walls under working stress conditions. The two phase model is a homogenization method based on the virtual work theorem. The reinforced soil medium is considered as the superposition of two continuous phases, the reinforcement and matrix phases that interact within the medium....
In the current research, 3D simulation of the projectile movement with a diameter of 5.56 mm, has been considered in the barrel with 48.26 cm length. The ideal gas and Abel-Nobel equations of state have been used to solve the gas phase equations. 6DOF solver has been applied to evaluate the projectile- fluid interaction and solved in the coupled manner with continuity, momentum, and energy equa...
One of the most important tasks in hand recognition applications for human-robot interaction is hand segmentation. This work presents a method that uses a Microsoft Kinect camera, for hand localization and segmentation. One important aspect for robot control besides hand localization is hand orientation, which is used in this work to control robot heading direction (left or right) and linear ve...
it is not possible to understand developments of a country’s culture and civilization without knowing his believes and myths. whether it is north or south, east or west, planes or mountains, sahara or deserts, here in iran every corner includes valuable and precious treasures which are known all over the world, and cultural – historical objects which are found here adorn all well known museums...
Machine foundations are subjected to significant dynamic impacts. These impacts could spread the surrounding regions, affecting workers, sensitive equipment in same institution, or nearby areas. This study analyzes response of machine-supporting harmonic and explosive loads under operational conditions provides closed-form solutions for predicting responses terms displacement, velocity, acceler...
In this paper a new nonlinear guidance law with finite time convergence is proposed. The second order integrated guidance and control loop is formulated considering a first order control loop dynamics. By transforming the state equations to the normal form, a finite time stabilizer feedback linearization technique is proposed to guarantee the finite time convergence of the system states to zero...
in the present research, in contrast to the available papers, not only the superelasticity but also the shape memory effects are taken into account in determination of the impact responses. at the same time, in addition to modifying brinson’s model for the shape memory alloys (smas), to include new parameters and loading events, and hertz contact law, distributions of the sma phases are conside...
drought is transient phenomenon , slow , repetitive and integral part of the climate of each region. drought begins with a substantial reduction in precipitation over the long-term average rainfall and over time, reduced soil moisture and surface and ground water resources will continue to decrease. this phenomenon is the most important in bakhtegan basin because of its importance in strategic ...
Current research in the Learning Sciences points out different methods and approaches to enhance and assist students in their learning and understanding of mathematical representations of the underlying physics of everyday situations. One of the aims of this paper is to address how mobile applications can be designed to support some of the pedagogical challenges associated with learners ́ unders...
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