The performance index of corrugated metal pipe

Rigidity
Load the stainless steel metal hose or other elastic elements demand unit displacement value is called an element stiffness, usually with K show. If the elastic properties of error linear element, the stiffness is no longer constant, but with the increase of the load change.
Nominal rigidity
The elastic element portray accounting is presented when the stiffness is called the nominal (or additional) stiffness. The measured it with the element stiffness error, especially the elastic element with nonlinear elastic characteristics. Nominal rigidity is representative of the curve where a little stiffness, should carefully consider. Generally speaking, the nominal rigidity the best not to directly select depicting the accounting value, but should use the product by modifying the value after the prototype test.
Stiffness tolerances
A group of elastic element stiffness promise of the slack test scale. For the same batch of elastic elements, each element stiffness are not the same, there is a slack scale. In order to ensure the use of performance elements, it is necessary to have a limit on the stiffness and laxity scale. On the elastic sensitive element, the stiffness of the tolerance demand restricted within the nominal value of +/-5%; usually works with the corrugated tube elastic element stiffness tolerances can be limited within the +/-50%.
Sensitivity
Metal corrugated hydraulic pipe fittings and other elastic element to accept the displacement quantity of unit load when the member is called element sensitivity. Rigidity and sensitivity are the main function parameters of corrugated hydraulic fitting adapters and other elastic elements, but they are two different ways to use that same characteristics. On different occasions, in order to facilitate the analysis of the problems, can choose between any kind of parameter.
Useful area
The elastic element on the completion of the pressure force or power of a pressure transducer, and an important function of the target area is useful. Useful area refers to the elastic element in the unit pressure effect, when the zero displacement can transform into a concentrated force size.
The use of life
The elastic element as there are two kinds of situation; one is operating in the load and displacement bound, and adhere to the load and displacement remains unchanged or rarely change, called static operation; another application is constantly cycle load and displacement reciprocating replacement change. The element is in the circulation work condition. Because the work condition is not the same, the damage of components or in the form of failure is not the same. The appearance of the elastic sensitive element operation in the elastic range, basically in the static operation condition, the use of life is very long, usually reaching tens of thousands of times to hundreds of thousands of times. Corrugated tube components used in the project, sometimes work in the elastic-plastic scale or alternating stress status, life as long as hundreds of dry time. Elements necessary given allowable operation life in cyclic operation, rule cycles, time and frequency.
Additional elastic component is the component life painted set expectations with life, demand during this period element does not promise appears tired, damage or failure of representation.