Hydraulic fatigue test system for carbon fiber composite pressure shell of space shuttle fuselage
A composite material and pressure-bearing shell technology, which is applied in the direction of applying repetitive force/pulsation force to test the strength of materials, can solve the problems of not being suitable for the fatigue test of composite material pressure-bearing structures, not considering the test temperature, and inconvenient operation and maintenance. Achieve the effect of high work efficiency, stable performance and wide application range
Inactive Publication Date: 2015-08-26
ZHEJIANG UNIV
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However, the hydraulic fatigue test system currently used is often aimed at a certain type of specific product such as gas cylinders. It has a narrow application range, inconvenient operation and maintenance, and does not consider the influence of test temperature, so it is not suitable for fatigue of composite pressure-bearing structures. test
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[0015] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0016] Such as figure 1 As shown, the present invention includes a thermal insulation water tank 1, a filter 2, a high-pressure plunger pump 3, an overflow valve 4, a normally open solenoid valve 5, a power-off delay relay 6, a pressure switch 7, a counter 8, and a normally closed solenoid valve 9 , energization delay relay 10, temperature controller 11, heater 12, computer 13, pressure sensor 14, two shut-off valves 15 and two test pieces 16.
[0017] The heat preservation water tank 1 is equipped with a filter 2 and a heater 12, the heater 12 is connected with a temperature controller 11, the water inlet of the high-pressure plunger pump 3 is connected with the filter 2, and the water outlet of the high-pressure plunger pump 3 is often opened after the solenoid valve 5 Divided into two paths, the first path is connected to the first test pie...
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The invention discloses a hydraulic fatigue test system for a pressure-bearing casing made of carbon fiber composite material. A filter and a heater are mounted inside a heat preservation water tank, the heater is connected with a temperature controller, the water inlet of a high pressure plunger pump is connected with the filter, a water outlet is divided into two paths by a normally open solenoid valve, a first path is connected with a first test piece through a first stop valve, and a second path is connected with a second test piece through a second stop valve; the water inlet of the normally open solenoid valve is connected with the water inlet of an overflow valve, the water outlet of the normally open solenoid valve is connected with the water inlet of a normally closed solenoid valve, and the overflow valve is connected to the heat preservation water tank after being connected in parallel with the water outlet of the normally closed solenoid valve; the outlet end of the normally open solenoid valve is divided into three paths of control circuits after being connected with a press switch, the first path is connected with the normally open solenoid valve through a power-off delay relay, the second path is connected with the normally closed solenoid valve through an electrifying delay relay, and the third path is connected with a counter. The hydraulic fatigue test system provided by the invention can meet the requirements of fatigue test to pressure-bearing casings made of carbon fiber composite material and having different shapes and dimensions; the hydraulic fatigue test system can achieve adjustment and control to parameters such as test pressure, temperature, fatigue frequency and the like.
Description
technical field [0001] The invention relates to a hydraulic fatigue test system, in particular to a hydraulic fatigue test system for a carbon fiber composite material pressure-bearing shell of a space shuttle fuselage. Background technique [0002] High-strength carbon fiber composite materials are widely used in aerospace, aircraft, missiles and other aircraft due to their light weight, high strength, designability of material properties, and ease of movement. Carbon fiber and its composite material products are currently the fastest growing in the world. One of the high-tech materials, such as the fuselage of the space shuttle, the shell of the missile, and the shell of the aircraft fuselage, is a cylindrical carbon fiber composite pressure-bearing shell. This type of pressure-bearing shell is currently the most important component of carbon fiber composite materials. one. [0003] In addition to the cylindrical shell structure, this type of pressure-bearing shell will a...
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IPC IPC(8): G01N3/36
Inventor 郑传祥王亮李蓉魏宗新魏双
Owner ZHEJIANG UNIV