The motion program building approach the goal of which is collateral control of several actuators bringing the affix the desired dynamical and accuracy properties, should be implemented in the way to avoid actuators collisions. The algorithm which enables this is described in the paper. It is based on a geometrical representation of actuators movement and takes into consideration ...

А three-dimensional field of stresses in the roller-ring active system is observed in the present paper. The field was obtained by superposing the field of stresses conditioned by action of normal and tangential elliptically distributed contact forces and by bending of the ring. A significant change of the state of stress in comparison with the solution for the pure contact problem ...

The general solution that contains two arbitrary functions of longitudinal coordinates and time has been constructed for the elastic isotropic area comprising two parallel planes. The equilibrium equations within the area and homogeneous shearing stresses on the planes z-±h are accomplished identically.

The general solution constructed satisfies identically the equilibrium equations within the area for the problem considered. The conditions of absence for longitudinal transferences on the planes z=±h are accomplished identically.

Modes of electroacoustic and acoustoelectric converting of random signals by piezoelectric sensor as a flat piezoelement are studied/. The wave equation for distribution of mechanical shift along the thickness of the given element, taking into account the acoustic voltage (vibration radiation mode) and the controlled mechanical shift (reception mode) are presented in a form ...

Conception of creating information manuals at study of the theoretical mechanics. Are given an estimation and recommendations for use machine and without machine programmed of the control of knowledge of the students, the conditions are stated which should answer process of mastering and quality of preparation at independent work of the students.

В работе рассмотрена кинематика двух типов зубчатых передач с эллиптическими колесами. Получены формулы для угловой скорости и углового ускорения ведомого колеса, на основании которых построены графики зависимости указанных угловых характеристик от угла поворота ведущего колеса, вращающегося с постоянной угловой скоростью.

The given article is devoted to features of training the Internet-technologies in discipline "Informatics". Authors have created the electronic simulator applied in laboratory works. The fragment of the electronic instruction is shown.

While modeling transmission, two main types of models are used: a kinematic scheme and a CAD assembly. Both types have their own advantages and disadvantages as well. The kinematic scheme is flat and it doesn't contain special data to calculate loads. The CAD assembly - quite the contrary — is too detailed and it is rather hard to create this kind of model. This paper presents ...

The general methods of the resolution of the partial differential equations of the first order for a prescribed of the strain state of thin-walled elastic shells of the given type (momentless or pure moment) are obtained.