Abstract
Abstract Static stiffness is determined by one-sided loading and unloading of machine parts relative to the selected base. For each structure, there will be some loss of potential energy due to the dissipative forces that occur during the loading inside the structure. This loss is manifested in hysteresis in the stiffness diagram. A new approach to the assessment of static stiffness consists in gradual, bilateral loading and unloading of the structure through the effect of static forces of different magnitude. In this process, the stiffness hysteresis varies, depending on the intrinsic nature of the dissipative forces, a specific property suitable for assessing the condition of machines.
Highlights
Static stiffness is determined by one-sided loading and unloading of machine parts relative to the selected base
There will be some loss of potential energy due to the dissipative forces that occur during the loading inside the structure
This loss is manifested in hysteresis in the stiffness diagram
Summary
100-gram weights were used for application of the force (precision ± 1 gram). The maximum load was 20N (2000 gram). The beam to which the load was applied is made of structural steel 180×50×5 (mm)
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