Large-amplitude translation/rotation-coupled vibration experiment device loaded under the control of force and torque

A technology of coupling vibration and experimental equipment, which is applied in vibration testing, measuring equipment, testing of machines/structural components, etc., can solve the problems of high cost, scarcity, and inability to be popularized and applied, and achieves easy disassembly and assembly and strong applicability , the effect of simple operation

Active Publication Date: 2014-04-23
广东空天科技研究院
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Problems solved by technology

However, large-scale special experimental equipment such as marine engineering pools are expensive and scarce, and the cost of experiment and measurement is also very expensive, so they cannot be widely used
It is not convenient to discover new phenomena and carry out princi

Method used

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  • Large-amplitude translation/rotation-coupled vibration experiment device loaded under the control of force and torque
  • Large-amplitude translation/rotation-coupled vibration experiment device loaded under the control of force and torque

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Embodiment Construction

[0033] If the experimental device can better meet various experimental requirements, it needs to meet the following six points: 1. It can realize the simultaneous excitation of multiple frequency external loads, and the coupling response of multiple degrees of freedom such as structural translation and rotation; 2. It can realize arbitrary The force and moment control loading scheme of the given load can carry out vibration experiments in a wide frequency domain; 3. The device can make the experimental object perform reciprocating motions with large amplitudes (translational motion, rotation, etc.) under the action of any given external load. Multiple degrees of freedom coupling); 4. The stiffness of the device can be adjusted, and the initial position of the experimental object can be adjusted; 5. The damping of the vibration system can be adjusted in a wide range; 6. The quality of the vibration system can be adjusted as needed. All of the above points can be accomplished thr...

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Abstract

The invention discloses a large-amplitude translation/rotation-coupled vibration experiment device loaded under the control of force and torque. The device comprises a portal frame, vibration structure plates, loading springs, a three-way acceleration sensor and a displacement sensor, wherein the portal frame includes two supporting columns, a top cross beam, a bottom cross beam and a bearing platform used for fixing a damper and disposed between the top cross beam and the bottom cross beam, the vibration structure plates include an upper-part vibration structure plate and a lower-part vibration structure plate, the loading springs include a horizontal loading spring and a vertical loading spring, the three-way acceleration sensor is arranged on the upper-part vibration structure plate, and the displacement sensor is arranged between the upper-part vibration structure plate and the top cross beam. The experiment device of the invention is strong in applicability and simple in operation; and the device is applicable to experimental simulation of various ocean engineering structures, ships and submarines, high-speed trains, super-large-span building structures, military and civil aircrafts, spacecrafts and the like.

Description

technical field [0001] The invention relates to a large-amplitude translational rotation coupling vibration experimental device loaded with force and moment control. Background technique [0002] Most actual engineering structural systems, such as various marine engineering structures, ships and submarines, high-speed railway trains, super-long-span building structures, military and civilian aircraft, spacecraft, etc., will vibrate under external loads. Whether it is an optimization analysis of an existing system or an innovative concept study and design, vibration experiment simulation is required. Under certain working conditions, after these engineering systems are subjected to external loads (forces and moments), vibrations with large amplitudes, coupled translational and rotational degrees of freedom will occur. Therefore, there is a great need for a large-amplitude coupled vibration general-purpose experimental device that can simulate such load-controlled loading, so...

Claims

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Application Information

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IPC IPC(8): G01M7/06
Inventor 曾晓辉张良余杨周济福刘青泉
Owner 广东空天科技研究院
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