Rigidity variable elastic system simulating device

A technique for elastic systems and simulation devices, which is applied in the field of simulation devices and can solve problems such as stiffness reduction

Inactive Publication Date: 2005-06-01
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art, provide a variable stiffness elastic system simulation device, use a variety of limiting devices to make the elastic characteristics of the elastic system meet the requi...

Method used

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  • Rigidity variable elastic system simulating device

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Embodiment Construction

[0011] Such as figure 1 As shown, the present invention includes: a rigid shell 1 , a spring 2 , a spring limiting device 3 , a spring pretensioning device 4 , a cable 5 and a cable hole 6 . The connection relationship is as follows: the spring 2 is connected to the rigid shell 1, one end is connected to the tail end of the rigid shell 1, and the other end is connected to the cable 5, the cable 5 passes through the rigid shell 1 through the cable guide hole 6, and the spring limiting device 3 And the spring pretensioning device 4 is arranged on the spring 2 .

[0012] The spring limiting device 3 is a steel wire rope and clamps that are installed at both ends and can be fixed on the spring 2 .

[0013] The spring pretensioning device 4 is a rigid frame and a clip that is installed at both ends and can be fixed on the spring.

[0014] Cable 5 is a steel wire rope.

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Abstract

The variable rigidity elastic system simulator is used in marine engineering field. The present invention includes rigid casing, spring, spring limiting device, spring pre-tensing device, cable and cable guiding hole in the connection relation of connecting the spring inside the rigid casing between the tail of the rigid casing and the cable, penetrating the cable through the cable guiding hole outside the rigid casing to bear the outside tension, and setting the spring limiting device and the spring pre-tensing device onto the spring. The present invention controls the setting of the limiting device and the pre-tensing device to make them begin to exert at the rigid altering point, so as to meet the requirement of simulating variable rigidity elastic system. The system with complicated rigidity variation or high simulation requirement may be also simulated vian increasing the number of the limiters or increasing the number of the rigidity varying points.

Description

technical field [0001] The invention relates to a simulation device, in particular to a simulation device for a variable stiffness elastic system. Used in marine engineering field. Background technique [0002] In the field of ship and ocean engineering tests, when simulating the elasticity of mooring cables or tow cables, its stiffness is often required to change with different loads, which no longer fully conforms to Hooke's law. When it is in the case of low load, its stiffness gradually increases with the increase of load, and when the load increases to a larger value, the change of stiffness will change abruptly, that is, its stiffness increases with the increase of load slowing shrieking. The specific manifestation is that this kind of cable starts to become more and more "hard" as the tension increases, but when the tension increases to a certain value, it will suddenly become "soft". [0003] Found through document retrieval to prior art, people such as Yu Xiangsa...

Claims

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Application Information

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IPC IPC(8): G01N3/00G01N3/44
Inventor 杨建民张承懿彭涛王磊肖龙飞姚美旺王敏声
Owner SHANGHAI JIAO TONG UNIV
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