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HDPE双壁波纹管有什么特性?

作者: admin    来源:http://www.laobingguandao.com  时间:2019-12-11    人气:
  HDPE双壁波纹管弹性特性的非线性取决于其几何形状和位移。一般来说,非线性是很小的。在计算波纹管释放、补偿和弹性接头时,没有考虑非线性。如果波纹管作为弹性元件与弹簧一起工作,且波纹管的刚度小于弹簧的刚度,则测量元件的非线性在很大程度上取决于弹性体的性能。
  The nonlinearity of the elastic properties of HDPE Double wall bellows depends on its geometry and displacement. In general, nonlinearity is very small. Nonlinearity is not considered in the calculation of bellows release, compensation and elastic joints. If the bellows works together with the spring as an elastic element, and the rigidity of the bellows is less than that of the spring, the nonlinearity of the measuring element largely depends on the performance of the elastomer.
  当采用波纹管作为测量元件将压力直接转化为位移时,必须考虑其非线性特性。
  When bellows are used as measuring elements to directly convert pressure into displacement, its nonlinear characteristics must be considered.
  波纹管压力的实验特征Q和p即使位移在横截面的和线性特性有明显区域到另一个地方,因此,严格来说只有在弹性元件的初始状态(p - 0)符合线性特征(实验或计算),在负载的情况下,弹性元件的性能会有一定的错误相比,线性特征。
  The experimental characteristics of bellows pressure Q and P even if the displacement in the center of cross-section and linear characteristics have obvious area to another place, therefore, strictly speaking, only in the initial state of the elastic element (P-0) in line with the linear characteristics (experiment or calculation), in the case of load, the performance of the elastic element will have certain error compared with the linear characteristics.
  在仪器制造行业使用的波纹管中,半波极值截面的相互位移可能超过壁厚一个数量级。在这种情况下,非线性的性质成为一个重要的问题。在压力p和力O的作用下,青铜波纹管非线性特性的实验数据如表9所示。对引起波纹管伸长的载荷取正值。
  In the bellows used in the instrument manufacturing industry, the mutual displacement of the half wave extreme section may exceed the wall thickness by an order of magnitude. In this case, nonlinear properties become an important problem. Under the action of pressure P and force o, the experimental data of nonlinear characteristics of bronze bellows are shown in Table 9. Take a positive value for the load that causes the bellows to extend.
双扣聚氯乙烯增强管
  用理论解释了波纹管在线性载荷作用下表现出上述特性的机理。这一解释是基于波纹线不同位置的径向位移和相应的周向膜应力的分析,对于波纹管的任何位移都是如此。
  The mechanism of the above characteristics of bellows under linear load is explained theoretically. This interpretation is based on the analysis of the radial displacement and the corresponding circumferential membrane stress at different positions of the bellows, which is the same for any displacement of the bellows.
  当波纹管伸长时,内外环壳各点相对位移,从而产生相应的周向压缩力和拉伸力。
  When the bellows is extended, the relative displacement of each point of the inner and outer ring shell will produce the corresponding circumferential compression force and tensile force.
  如果波纹波提前压缩,波纹波的环形锥在波纹波纹管被拉伸时发生扭转,环形锥边缘的径向位移与环形壳体的位移符号相反。因此,当波纹管位移相同时,波纹管的总周向力和刚度均减小。这可以通过图3中所示的0.125和0.25特性曲线示例来说明。因此,在其他参数相同的情况下,存在系数值x=x,初始刚度更小。
  If the wave is compressed in advance, the circular cone of the wave will twist when the bellows is stretched, and the radial displacement of the edge of the circular cone is opposite to the displacement sign of the circular shell. Therefore, the total circumferential force and stiffness of the bellows decrease when the bellows moves phase. This can be illustrated by the 0.125 and 0.25 characteristic curve examples shown in Figure 3. Therefore, when other parameters are the same, there is an optimal coefficient value x = x, and the initial stiffness is the smallest.

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