Initiative and follow-up loading structure experiment system

Abstract

The invention relates to a structure experiment system with active follow loading, comprising a supporting frame, a horizontal loading actuator and a vertical loading actuator; a vertical micro motion detecting device and a horizontal micro motion detecting device are connected with a sample respectively; the side of the horizontal loading actuator is provided with a vertical servo following actuator; the side of the vertical loading actuator is provided with a horizontal servo following actuator; and the vertical micro motion detecting device, the vertical servo following actuator, the horizontal micro motion detecting device and the horizontal servo following actuator are connected with a computer control system respectively. The structure experiment system with active follow loading can guarantee that vertical test force is always maintained in the vertical state during testing so as not to be affected by horizontal deformation of the tested sample, and guarantee that the horizontal test force is always maintained in the horizontal state during testing so as not to be affected by vertical deformation of the tested sample.

Description

(1) Technical field [0001] The invention relates to a structure test system with active follow-up loading function. (2) Background technology [0002] The large-scale structural test system is a large-scale instrument used to test the mechanical properties of structures. The design inspection, optimization and verification of span bridges, large passenger planes, space shuttles, giant ships, offshore platforms, nuclear power plants, etc. have milestone significance. [0003] During the extensive development period of the national economy, the design of the above-mentioned various structures is mainly based on the analogy method, and neither the accuracy nor the rationality of the design is the focus of consideration. Such a design method is mainly used in the design of conventional materials and conventional structures. Although the empirical analogy method will have large design errors, the final result can still be achieved because of previous experience and relatively de...

AI Technical Summary

Problems solved by technology

During the test, if the tested sample is subjected to the horizontal test force applied by the horizontal loading actuator, it will deform in the horizontal direction, which cannot guarantee that the horizontal test force will always remain horizontal during the test; similarly, if the tested sample is subjected to vertical The vertical test force applied to the loading actuator will produce vertical deformation, and it cannot be guaranteed that the vertical test force will always remain in a vertical state during the test process, which will cause large errors in structural experiments

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