Influence of the heat and mechanical treatment on the reversible change of shape on the cylindric compression springs with the shape memory effect under the cyclic change of temperatures during the intervals of martensite transformation is investigated. To obtain the optimal functional characteristics of the spring strength elements preheating conditions and the following heat and force cycling conditions were established. Using established relationships gives the possibility to estimate the effect of heat treatment in a new way and confirm the assumption that obtained experimental results are determined by the methods of research since the parameters single change characterizing effects of memory are thermomechanical training cycle. The obtained dependences define rational guidance of strain values and the required number of thermal cycles, providing stabilized characteristics of spring thermosensitive elements and the optimized parameters formation for memory effects data for thermosensitive elements geometric characteristics, and allow us to calculate and design thermal drive for technological systems.

The investigation of thermo-mechanical processes in materials and elements with shape memory effect (SME) and the simulation of dynamics of elements and drives based on alloys with shape memory and taking into account the adaptation properties of material are carried out in order to develop adaptive-controlled thermomechanical drives or actuators, heat regulator and automation tools of technological processes. The effect of the thermal cycling modes and the magnitude of deformation, which induces the shape memory effect, on the level of reversibility of the deformation, the implementation of the effect of reversible shape memory, the magnitude of the excited force, and the recoverable deformation are investigated. A generalized dynamic model of a technical mechanism based on the elements with SME is developed. The model formally describes adaptive control of mechanism, based on which, the adaptation algorithms can be synthesized. The developed models can be used in the calculation and design of various thermomechanical drives and actuators, heat regulators, thermal compensators and damping devices based on elements from shape memory alloys, as well as in a synthesis of adaptive control algorithms of continuous and discrete classes in the terminal control, homing guidance and stabilization modes.