Environmental simulation equipment and method of structural fatigue/durability experiment system in complex environment

Abstract

The invention discloses environment simulation equipment and method for a structure fatigue / durability experiment system in a complex environment, the equipment is mainly composed of a control terminal and at least one test chamber, the test chambers are connected in sequence, and a movable partition door is arranged between every two adjacent test chambers; each test chamber is provided with an independent environment simulation mechanism and a control mechanism, the environment simulation mechanism is connected with the control mechanism, and the control mechanism is connected with the control terminal; each environment simulation mechanism comprises a heating unit, a refrigeration unit and a humidification and dehumidification unit which are integrated, and a low-pressure compressor unit, a high-pressure compressor unit, a heat exchanger and the like in the refrigeration unit act together, so that low-temperature and low-humidity environment simulation can be realized, and simulation of a low-temperature environment with the temperature smaller than or equal to-60 DEG C can also be realized. Each test chamber is provided with an independent environment simulation mechanism and an independent control mechanism, so that any combination of multiple environment factors can be realized to meet experiment requirements.

Description

technical field [0001] The invention relates to the technical field of environmental fatigue and durability experiments, in particular to an environment simulation device and method for a structural fatigue / durability experiment system in a complex environment. Background technique [0002] Major equipment or major engineering structures in the fields of land transportation, shipbuilding and ocean engineering, water conservancy and hydropower, ports, wind power generation, aviation, civil engineering, engineering machinery, etc., often work under the coupling of various service environments and loads. The service environment is diverse and time-varying, and the external loads it bears are often variable-amplitude loads that vary with time and space or even random loads. For the anti-fatigue / durability design and safety evaluation of these major equipment and major engineering structures, most of the experimental data currently based are from constant-amplitude fatigue experi...

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Problems solved by technology

[0005] 1) Simulation and control of low temperature and low humidity (for example: ≤40% R·H at 5-20°C) environment cannot be realized;

[0006] 2) Only a single environment can be realized in a certain test chamber, and the variable environment mode cannot be realized, and the degree of simulation is low;

[0007] 3) It is impossible to simulate and control the low temperature environment of ≤-60°C;

[0008] 4) Simulation of the service environment of large structures and small components such as bridges, deep-sea platforms, ports, dams, ships, and aircrafts cannot be applied

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