scholarly journals Modeling and Analysis of Impact System Composed of Ball and Plane. 2nd Report. In the case of High Polymer Materials System.

2000 ◽  
Vol 66 (646) ◽  
pp. 1829-1835
Author(s):  
Tetsuyuki HONGO ◽  
Hidenori SATO ◽  
Yoshio IWATA ◽  
Toshihiko KOMATSUZAKI ◽  
Yoko HONGO
Keyword(s):  
Polymer Materials ◽  
High Polymer ◽  
Modeling And Analysis ◽  
Impact System

210 Characteristics of High Polymer Materials Impact System Composed of Ball and Plane

2000 ◽  
Vol 2000.37 (0) ◽  
pp. 57-58
Author(s):  
Tetsuyuki HONGO ◽  
Hidenori SATO ◽  
Yoshio IWATA ◽  
Toshihiko KOMATSUZAKI ◽  
Yoko HONGO
Keyword(s):  
Polymer Materials ◽  
High Polymer ◽  
Impact System

Hypotheses about the Tools Origin of Textile Materials

2015 ◽  
Vol 1090 ◽  
pp. 18-21
Author(s):  
Yuan Tao ◽  
Wei Dong Yu
Keyword(s):  
Soft Materials ◽  
Stone Tools ◽  
Polymer Materials ◽  
Evidence Based ◽  
High Polymer ◽  
Origin Time ◽  
Textile Materials ◽  
Physical Evidence ◽  
Better Than

As high polymer materials, textile materials are easily to be carbonized and then disappear, so it is almost impossible to study the origin of it from physical evidence. Based on the objective historical facts, through analysis and inference, the paper believed that textile materials, as soft materials, are better than stone tools in the aspects of obtaining, making, functions and uses. Two hypotheses about the origin of textile materials are proposed. The first is that textile materials originate from tools, and the origin time of it is not later than stone tools. The second is that signs and clothing application of textile materials both evolve from its usage as tools, so the origin sequence of textile materials is tools, signs, and clothing.

scholarly journals Recent Development of Thermostable High Polymer Materials

Kobunshi ◽  
1967 ◽  
Vol 16 (7) ◽  
pp. 795-799
Author(s):  
Masamoto WATANABE ◽  
Takashi KUZBOTA
Keyword(s):  
Polymer Materials ◽  
High Polymer

EXPERIMENTAL INVESTIGATION OF A TWO-DEGREE-OF-FREEDOM VIBRO-IMPACT SYSTEM

2012 ◽  
Vol 22 (05) ◽  
pp. 1250110 ◽  
Author(s):  
GUILIN WEN ◽  
HUIDONG XU ◽  
LU XIAO ◽  
XIAOPING XIE ◽  
ZHONG CHEN ◽  
...  
Keyword(s):  
Dynamical Behavior ◽  
Degree Of Freedom ◽  
Modeling And Analysis ◽  
Strongly Nonlinear ◽  
Impact System ◽  
Dynamical Behaviors ◽  
Nonsmooth Systems ◽  
Experimental Apparatus ◽  
Thick Steel ◽  
Two Degree Of Freedom

Vibro-impact systems with intermittent contacts are strongly nonlinear. The discontinuity of impact can give rise to rich nonlinear dynamic behaviors and bring forth challenges in the modeling and analysis of this type of nonsmooth systems. The dynamical behavior of a two-degree-of-freedom vibro-impact system is investigated experimentally in this paper. The experimental apparatus is composed of two spring-linked oscillators moving on a lead rail. One of the two oscillators connected to an excitation system intermittently impacts with a spherical obstacle fixed on the thick steel wall. With different gap sizes between the impacting oscillator and the obstacle, the dynamical behaviors are investigated by changing the excitation frequencies. The experimental results show periodic, grazing and chaotic dynamical behaviors of the vibro-impact system.

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