scholarly journals Shock Absorbing Characteristics and Vibration Transmissibility of Honeycomb Paperboard

2004 ◽  
Vol 11 (5-6) ◽  
pp. 521-531 ◽  
Author(s):  
Yanfeng Guo ◽  
Jinghui Zhang
Keyword(s):  
Experimental Studies ◽  
Honeycomb Sandwich ◽  
Vibration Transmissibility ◽  
Characterization Of Properties ◽  
Vibration Tests ◽  
Vibration Damage ◽  
Honeycomb Sandwich Structure ◽  
Protective Packaging ◽  
Different Thickness

Honeycomb paperboard is a kind of environmental-friendly package cushioning material with honeycomb sandwich structure, and may be employed to protect products from shock or vibration damage during distribution. This paper deals with the characterization of properties of honeycomb paperboard relevant to its application for protective packaging in transportation, such as dynamic cushion curves and vibration transmissibility. The main feature of the paper is the evaluation on the shock absorbing characteristics and vibration transmissibility of honeycomb paperboards with different thickness by a series of experimental studies on the drop shock machine and vibration table. By using the fitting polynomial of the curve, the experiential formulas and characteristic coefficients of dynamic cushion curves of honeycomb paperboards with different thickness have been obtained. From the vibration tests with slow sine sweep, the peak frequencies and vibration transmissibility are measured and used to estimate the damping ratios. All the works provide basic data and curves relevant to its application for protective packaging in transportation.

scholarly journals Dynamic Shock Cushioning Characteristics and Vibration Transmissibility of X-PLY Corrugated Paperboard

2011 ◽  
Vol 18 (4) ◽  
pp. 525-535 ◽  
Author(s):  
Yanfeng Guo ◽  
Wencai Xu ◽  
Yungang Fu ◽  
Hongtao Wang
Keyword(s):  
Experimental Studies ◽  
Least Mean Square ◽  
Vibration Transmissibility ◽  
Characterization Of Properties ◽  
New Type ◽  
Vibration Tests ◽  
Vibration Damage ◽  
Protective Packaging ◽  
Frequency Curves

X-PLY corrugated paperboard is a new-type corrugated paperboard with three layers of orthotropic corrugated sandwiches structure, and may be employed to protect products from shock or vibration damage during distribution. This article deals with the characterization of properties of X-PLY corrugated paperboard relevant to its application for protective packaging in distribution, such as dynamic cushioning curves, vibration transmissibility and frequency curves. The main feature of article is the evaluation on the dynamic shock cushioning characteristics and vibration transmissibility of X-PLY corrugated paperboards by a series of experimental studies on the drop shock tester and vibration tester, the establishment of experimental formulas of dynamic cushioning curves, and the analysis of peak frequencies, vibration transmissibility and damping ratios. By using the fitting polynomial of curve and method of the least mean square, the experimental formulas and characteristic coefficients of dynamic cushioning curves have been obtained. From the vibration tests with slow sine sweep, the peak frequencies and vibration transmissibility are measured and used to estimate the damping ratios. These works provide basic data and curves relevant to its application for protective packaging in distribution.

scholarly journals Effect of Temperature Changes on the Vibration Transmissibility of XPE and PE Packaging Cushioning Material

2021 ◽  
Vol 11 (2) ◽  
pp. 482
Author(s):  
Péter Csavajda ◽  
Péter Böröcz
Keyword(s):  
Effect Of Temperature ◽  
Protective Mechanism ◽  
Package Design ◽  
Temperature Changes ◽  
Vibration Stress ◽  
Vibration Transmissibility ◽  
Characterization Of Properties ◽  
Series Of Experiments ◽  
Materials Used ◽  
Protective Packaging

Polyethylene (PE) and its variations are among the most traditional materials used for cushioning in packaging systems. The role of these materials is to prevent damages during handling and distribution processes from physical events such as vibration stress. This study presents new results on the characterization of properties of PE and XPE (cross-linked polyethylene) packaging materials, which have significant relevance as a protective mechanism due to their vibration transmissibility and frequency curve properties. The main goal of this study is the evaluation of vibration transmissibility of PE and XPE cushion material at varied real temperature and static load conditions through a series of experiments using a vibration tester and climate chamber to determine the peak frequencies, vibration transmissibility, and damping ratios. The results can be used by engineers in the package-design process, and can be useful in different distribution conditions. Three different kinds of static loads and a 0.5 oct/min sine sweep of vibration test were used to find the peak frequencies and vibration transmissibility at −20 °C, 0 °C, 20 °C and 40 °C to estimate the damping ratios. The results provided a better understanding of the materials and can assist in the design of suitable protective packaging systems.

scholarly journals Investigation of vibration transmissibility for paper honeycomb sandwich structures with various moisture contents

2019 ◽  
Vol 20 (1) ◽  
pp. 108
Author(s):  
Dong-Mei Wang ◽  
Rui Yang
Keyword(s):  
Moisture Content ◽  
Sandwich Structure ◽  
Sandwich Structures ◽  
Absorption Capacity ◽  
Cell Length ◽  
Vibration Prediction ◽  
Honeycomb Sandwich ◽  
Vibration Transmissibility ◽  
Paper Honeycomb ◽  
Honeycomb Sandwich Structure

Vibration transmissibility is an important factor to characterize the vibration absorption performance of cushioning packaging materials during transportation. Reasonable prediction of vibration transmissibility can guide antivibration design and reduce packaging cost. As a kind of green cushioning material, paper honeycomb sandwich structure is widely used in transport packaging because of its good machinability. But at the same time, it also has strong water absorption capacity. To a great extent, the vibration transmissibility of paper honeycomb sandwich structure may be affected by ambient humidity. In this research, the vibration transmissibility of paper honeycomb sandwich structures with various structure sizes under different humidity was tested by sine frequency sweep experiments. The rule of maximal vibration transmissibility with moisture content, cell length of honeycomb, and thickness of sandwich structure was analyzed. The results show that the maximal vibration transmissibility of paper honeycomb sandwich structure increases with the increase of moisture content, cell length of honeycomb, and thickness of sandwich structure. In order to construct the relationship between maximal vibration transmissibility and various factors, the moisture content was standardized. Finally, the maximal vibration transmissibility evaluation equation of paper honeycomb sandwich structure containing standardized moisture content and size of sandwich structure was obtained, which is of some reference value for vibration prediction of paper honeycomb sandwich structures.

Numerical and Experimental Studies of Composites Sandwich Structure with a Rectangular Cut-Out

2013 ◽  
Vol 395-396 ◽  
pp. 891-896
Author(s):  
Zhen Zhang ◽  
Jian Guang Zhang ◽  
Xiu Zhi Liu ◽  
Yong Hai Wen ◽  
Shao Bo Gong
Keyword(s):  
Sandwich Structure ◽  
Experimental Studies ◽  
Compressive Load ◽  
Linear Analysis ◽  
Mechanical Tests ◽  
Deformation Analysis ◽  
Linear Solution ◽  
Honeycomb Sandwich ◽  
Non Linear ◽  
Honeycomb Sandwich Structure

Numerical and experimental study on honeycomb sandwich structure with a rectangular cut-out were carried out in this paper. Two designs were presented, with using a U-shaped sandwich structure or a combination of two separate sandwiches. Finite element models were developed and calculated using MSC.NASTRAN code by means of linear analysis and non-linear incremental deformation analysis. Compared with linear analysis, non-linear analysis was more suitable to evaluate the ability of sandwich structure with cut-out to resist compressive load. The results obtained from non-linear solution were verified by the supporting mechanical tests.

Synthesis and characterization of L-threonine ammonium bromide: grown on single crystal with experimental studies on NLO

2021 ◽  
Vol 44 (3) ◽  
Author(s):  
T KALAIARASI ◽  
M SENTHILKUMAR ◽  
S SHANMUGAN ◽  
T JARIN ◽  
V CHITHAMBARAM ◽  
...  
Keyword(s):  
Single Crystal ◽  
Experimental Studies ◽  
Synthesis And Characterization ◽  
Ammonium Bromide
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