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polymer viscoelasticity
相关语句
  高分子粘弹性
     CAI(computer assistant instruction) software of polymer viscoelasticity was designed based on Matlab/Simulink.
     设计了基于Matlab/Simulink的高分子粘弹性计算机辅助教学(CAI)软件。
短句来源
  “polymer viscoelasticity”译为未确定词的双语例句
     Demonstration and Simulation of Polymer Viscoelasticity Based on Matlab/Simulink
     在Matlab/Simulink仿真平台上演示和模拟高分子的粘弹性
短句来源
     Reptation theory considers polymer viscoelasticity and uses long chain model to calculate stress and strain, which can calculate self-diffusion coefficient;
     (3)自由体积理论。 Bueche扩散理论需要精确的粘度测量数据,因此有较大的局限性:蛇行理论是考虑到高分子的粘弹性,在维象角度建立的长链分子模型基础上,计算应力应变得到自扩散系数;
短句来源
     By combining the sound propagation theory in viscoelastic polymer material and polymer viscoelasticity theory,the mathematical model relating sound attenuation coefficient of polymer materials as a function of loss factor,modulus,density and frequency was established.
     以描述高分子材料粘弹行为的三元模型为出发点,以声波在高分子介质中的传播理论为依据,推导出了材料的水声声衰减能力与材料的动态力学性能参数包括损耗因子、松弛前的剪切模量、松弛后的剪切模量以及材料的密度和厚度之间的关系式。
短句来源
     In the modified model,the measurement of polymer viscoelasticity was not required,and the parameters related to the polymer could be determined solely by the characteristic parameters of temperature and volume in the SS EOS. Therefore,it has better predictive capability compared with the original model.
     与原模型相比,改进的模型避免进行高分子的黏弹性实验测定,模型中高分子的相关参数仅由状态方程的特征温度和特征体积确定,提高了模型的预测能力。
短句来源
  相似匹配句对
     Viscoelasticity and Its Mechanical Model of Polymer
     聚合物粘弹性及其力学模型
短句来源
     Experiment of viscoelasticity of polymer solution
     聚合物溶液的粘弹性实验
短句来源
     HYPERBRANCHED POLYMER
     超支化聚合物
短句来源
     Polymer Allors
     高分子合金
短句来源
     ASSESSMENT OF THE VISCOELASTICITY OF FENUGREEK
     香豆胶的粘弹性能评估
短句来源
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  polymer viscoelasticity
In the past, interest in fractional differential descriptions of polymer viscoelasticity has been mainly concerned with linear viscoelasticity, despite the fact that in processing and end use conditions are largely in the non-linear range.
      
In the past, interest in fractional differential descriptions of polymer viscoelasticity has been mainly concerned with linear viscoelasticity, despite the fact that in processing and end use conditions are largely in the non-linear range.
      
Therefore, they pose significant problems in the quest of a truly satisfactory understanding of polymer viscoelasticity.
      
From this accumulated wisdom, polymer viscoelasticity has become a mature field of research.
      
The die swell data were then used to predict the first normal-stress difference values by means of various die swell theories and the results were discussed in the light of polymer viscoelasticity.
      
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The hardness, elongation at break, tensile strength, modulus, compression stress relaxation and permanent compression set of the rubber vukanizates in thermo-oxidative aging were described. These properties increased or decreased monotonously with increasing aging time, except the tensile strength. The changes could be described with property-time dual or proper ty-temperature-time ternary mathematical models.The storage life and service life were predicted using these basic laws. A reasonable evaluating method...

The hardness, elongation at break, tensile strength, modulus, compression stress relaxation and permanent compression set of the rubber vukanizates in thermo-oxidative aging were described. These properties increased or decreased monotonously with increasing aging time, except the tensile strength. The changes could be described with property-time dual or proper ty-temperature-time ternary mathematical models.The storage life and service life were predicted using these basic laws. A reasonable evaluating method for the thermo-oxidative aging of rubber was established and the master cure at atmospheric temperature for studying the polymer viscoelasticity behaviors in long time was constituted.

研究了硫化橡胶在热空气老化时硬度、扯断伸长率、拉伸强度、定伸应力、压缩应力松弛和压缩永久变形等物理机械性能的变化规律。除拉伸强度变化无统一规律之外,其他性能(P)随老化时间(t)呈单调的增加或下降,并随温度(T)的提高P的变化速率显著加快,其变化可用P-t二元或P-T-t三元数学模型描述。循此基本规律可预测橡胶及其制品的贮存或使用寿命,建立橡胶耐热氧老化性的合理评定方法,以及构成常温叠合曲线来研究弹性体长时间的粘弹性行为。

CAI(computer assistant instruction) software of polymer viscoelasticity was designed based on Matlab/Simulink.The computer programs consisted of various functional modules according to the viscoelasticity priciple of polymer.Experimental data and simulation parameters may be input and modified by clicking the corresponding modules.The direct-viewing simulation results will be obtained from the output modules such as oscilloscope,digital display and XY recorder. This software can demonstrate...

CAI(computer assistant instruction) software of polymer viscoelasticity was designed based on Matlab/Simulink.The computer programs consisted of various functional modules according to the viscoelasticity priciple of polymer.Experimental data and simulation parameters may be input and modified by clicking the corresponding modules.The direct-viewing simulation results will be obtained from the output modules such as oscilloscope,digital display and XY recorder. This software can demonstrate and simulate the viscoelasticity behavior of polymer both in static and dynamic state,such as hysteresis effect,dynamic mechanical loss,Boltzmann superimposition of strain and free vibration decay curve.The software can be used not only for instruction demonstration in polymer physics course,but also for design and study of polymer materials.

设计了基于Matlab/Simulink的高分子粘弹性计算机辅助教学(CAI)软件。计算机程序由各种功能模块根据聚合物的粘弹性原理连接组合而成,通过点击模块可以输入和修改实验数据和模拟参数,运行后可以从虚拟的“示波器”、“数字显示屏”和“XY记录仪”上显示模拟结果。该软件可演示和模拟高分子材料的静态和动态粘弹性行为,如形变的滞后效应、动态力学损耗、Boltzmann叠加和自由振动衰减曲线等。该软件不仅可用于高分子物理课程的教学演示,也能够应用于高分子材料的设计和研究。

With the use of vibration field along the screw axial direction, the melting and plasticizing process of vibration induced single-screw extruder varied periodically and the change of polymer viscoelasticity was non-linear,which could not be described by the classical melting theory. The dynamic transparent barrel visualization experimental method and the static half-open barrel visualization experimental method were adopted to investigate the influence of vibration parameters on the melting and plasticizing...

With the use of vibration field along the screw axial direction, the melting and plasticizing process of vibration induced single-screw extruder varied periodically and the change of polymer viscoelasticity was non-linear,which could not be described by the classical melting theory. The dynamic transparent barrel visualization experimental method and the static half-open barrel visualization experimental method were adopted to investigate the influence of vibration parameters on the melting and plasticizing process.Melting mechanism was analyzed, and the melting physical model was established. Mass balance equation, momentum balance equation, energy balance equation and constitutive equation of the melting process with vibration were presented. With the help of sophisticated mathematical deduction, equations of melting rate and thickness of melt film were obtained.Melting rate and thickness of melt film was related to vibration parameters and was time-dependent.Melting rate increased while thickness of melt film decreased by vibration.Calculation were in good agreement with the result of experiment.

在振动诱导单螺杆挤出机中,通过螺杆的轴向振动使聚合物的熔融塑化过程在周期性的振动状态下进行,而经典熔融塑化理论无法描述处于周期性振动状态的熔融塑化过程。通过可视化和剖分料筒实验,观察了振动诱导单螺杆挤出机的熔融过程,深入分析了振动诱导熔融机理,建立了熔融过程动态物理模型,提出了振动场作用下熔融过程的质量平衡方程、动量平衡方程、能量平衡方程及本构方程,并运用复杂的数学方法求得近似解析解,最后得到了熔融速率方程和熔膜厚度方程,从公式中可以看出熔融速率与熔膜厚度都是与振动参数相关的,且具有时间依赖性,振动场的引入可以加快熔融速率,减少熔膜厚度。理论研究与前面的实验结果符合得很好.

 
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