scholarly journals The study of properties of metal rubber damper used in thruster

2020 ◽  
Vol 715 ◽  
pp. 012078
Author(s):  
Fu-Wei Duan ◽  
Yuan Tao ◽  
Cheng-Bin Ding ◽  
Ming-Fei Yu ◽  
Jin-Chuan Sun ◽  
...  
Keyword(s):  
Metal Rubber ◽  
Rubber Damper

Parameter Identification of a New Metal Rubber Damper System

2014 ◽  
Vol 528 ◽  
pp. 54-60
Author(s):  
Yu Long Li ◽  
Hong Bai Bai ◽  
Zhong Bo He
Keyword(s):  
Parameter Identification ◽  
Least Squares ◽  
High Precision ◽  
Dynamic Test ◽  
Generalized Least Squares ◽  
Hysteresis Model ◽  
The Real ◽  
Metal Rubber ◽  
Generalized Least Squares Estimation ◽  
Rubber Damper

The parameter identification of a new hysteretic nonlinear metal rubber damper system is studied in this paper. Firstly, the advantage of the new metal rubber damper which composed by two components is proved by the static and dynamic test comparing to the damper included only one metal rubber. Secondly, the constitutive of bilinear hysteresis model and parameter identification equation are obtained. Then the parameter of the new damper system is identified by generalized least squares estimation. In the last, the simulation result is compared with the real values, it shows that the method is simple, effective, high precision, and it is also reliable and applicable to the corresponding engineering.

The Study on Impact Resistance of Metal Rubber for a Product

2019 ◽  
Vol 821 ◽  
pp. 125-130 ◽  
Author(s):  
Fu Wei Duan ◽  
Yuan Tao ◽  
Cheng Bin Ding
Keyword(s):  
Impact Resistance ◽  
Great Influence ◽  
Impact Response ◽  
Test Results ◽  
Damping Effect ◽  
Cylindrical Metal ◽  
Metal Rubber ◽  
The Impact ◽  
Rubber Damper ◽  
Better Than

A metal rubber damper was designed for the too large impact response of a product. The impact response of products which bears big shocks with and without metal rubber damper were studied and compared. The damping performance of the metal rubber damper with different pre-compression was tested and studied. The test results show that the metal rubber damper can effectively reduce the impact response of the product in three directions; The damping effect of cylindrical metal rubber damper in the direction of cylinder axis is better than that in the other two axial directions; different pre-compression amounts have great influence on the impact response, so the optimum damping effect is obtained by adjusting the pre-compression amount of the metal rubber damper.

Constitutive model of disordered grid interpenetrating structure of flexible microporous metal rubber

2021 ◽  
Vol 154 ◽  
pp. 107567
Author(s):  
Zhiying Ren ◽  
Liangliang Shen ◽  
Hongbai Bai ◽  
Ling Pan ◽  
Shuncong Zhong
Keyword(s):  
Constitutive Model ◽  
Metal Rubber

Ballistic performance of composite structure configurations with high elongation calendered rubber layer laminated to AA5083-H112 aluminum alloy

2021 ◽  
pp. 146442072110145
Author(s):  
Hasan Kasım
Keyword(s):  
Adhesion Strength ◽  
Laminated Composite ◽  
Composite Plates ◽  
Front Face ◽  
Laminated Composite Plates ◽  
Ballistic Performance ◽  
Rubber Layer ◽  
Interface Interaction ◽  
Metal Rubber ◽  
High Elongation

This study aims to determine the ballistic performances of laminated composite plates produced with AA5083-H112 series aluminum and rubber material with high elongation capacity under impact loading. To investigate the effect of rubber compounds, two types of rubber with calendered and damping were prepared. Thanks to the surface treatment applied to the aluminum plates, the rubber–metal adhesion strength was adjusted, and four different laminated composite plate samples were prepared. Calendered rubber was used on the bullet impact surface of all samples, and damping rubber was used on the back. It has been observed that the pressure barrier created by the calendered rubber bullet on the front face provides high performance to absorb energy. A detailed study was carried out on the total thickness of laminated composite plates, the interface adhesion strength between rubber and aluminum layers, and the ballistic performance of aluminum-rubber combinations. It was concluded that the laminated composite plate’s energy absorption would increase, especially by increasing the thickness of the dumping rubber layer on the back of the aluminum sheets. In the strong metal-rubber interface interaction between the rubber and aluminum layer, the bullet is stopped before the pressure barrier is formed. The penetration depth and bulging height increase, and most of the energy are transmitted through the aluminum plate. In the weak metal-rubber interface interaction, a significant portion of the energy is absorbed by the rubber and air thanks to the pressure barrier.

Potential Application of Entangled Porous Titanium Alloy Metal Rubber in Artificial Lumbar Disc Prostheses

2021 ◽  
Vol 18 (3) ◽  
pp. 584-599
Author(s):  
Zhiying Ren ◽  
Jingfei Huang ◽  
Hongbai Bai ◽  
Rui Jin ◽  
Fangqi Xu ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Potential Application ◽  
Lumbar Disc ◽  
Porous Titanium ◽  
Metal Rubber ◽  
Alloy Metal

Investigation of Mechanical Behavior of Layered Metal-Rubber Composites Based on Steel and Aluminum Alloy

2021 ◽  
Vol 902 ◽  
pp. 87-94
Author(s):  
Svetlana Kuteneva ◽  
Sergei Gladkovsky ◽  
Pavel Nedzvetsky ◽  
Valeriya Veselova
Keyword(s):  
Aluminum Alloy ◽  
Mechanical Behavior ◽  
Mechanical Tests ◽  
Advanced Materials ◽  
Layered Composites ◽  
Rubber Composites ◽  
Operational Conditions ◽  
Lap Shear ◽  
Intermediate Layers ◽  
Metal Rubber

Metal-polymer composites are advanced materials for the aerospace, automotive and railway industry where details and elements of construction are affected by impact, cyclic and vibration loads. In the present work layered composites based on steel, aluminum alloy and rubber as intermediate layers were obtained by cold and hot bonding using adhesives. Adhesive lap-shear bond strength of layered composites fabricated by various techniques was determined using tensile shear test. To evaluate the mechanical behavior of layered metal-rubber composites under simulated operational conditions static, dynamic and cyclic, three points bending tests were carried out. The results of mechanical tests of these composites indicated that hot bonding is the most preferred fabrication method for the formation of increased mechanical characteristics.

scholarly journals Zucchini yellow mosaic virus: Contact Transmission, Stability on Surfaces, and Inactivation with Disinfectants

Plant Disease ◽  
2013 ◽  
Vol 97 (6) ◽  
pp. 765-771 ◽  
Author(s):  
B. A. Coutts ◽  
M. A. Kehoe ◽  
R. A. C. Jones
Keyword(s):  
Mosaic Virus ◽  
Human Skin ◽  
Sodium Hypochlorite ◽  
Management Strategies ◽  
Zucchini Yellow Mosaic Virus ◽  
Yellow Mosaic Virus ◽  
Hygiene Practices ◽  
Contact Transmission ◽  
Metal Rubber ◽  
On Farm

In glasshouse experiments, Zucchini yellow mosaic virus (ZYMV) was transmitted from infected to healthy zucchini (Cucurbita pepo) plants by direct contact when leaves were rubbed against each other, crushed, or trampled, and, to a lesser extent, on ZYMV-contaminated blades. When sap from zucchini plants infected with three ZYMV isolates was kept at room temperature for up to 6 h, it infected healthy plants readily. Also, when sap from ZYMV-infected leaves was applied to seven surfaces (cotton, plastic, leather, metal, rubber vehicle tire, rubber-soled footwear, and human skin) and left for up to 48 h before the ZYMV-contaminated surface was rubbed onto healthy zucchini plants, ZYMV remained infective for 48 h on tire, 24 h on plastic and leather, and up to 6 h on cotton, metal, and footwear. On human skin, ZYMV remained infective for 5 min only. The effectiveness of 13 disinfectants at inactivating ZYMV was evaluated by adding them to sap from ZYMV-infected leaves which was then rubbed on to healthy zucchini plants. None of the plants became infected when nonfat dried milk (20%, wt/vol) or bleach (sodium hypochlorite at 42 g/liter, diluted 1:4) were used. When ZYMV-infected pumpkin leaves were trampled by footwear and then used to trample healthy plants, all plants became infected; however, when contaminated footwear was dipped in a footbath containing bleach (sodium hypochlorite at 42 g/liter, diluted 1:4) before trampling, none became infected. This study demonstrates that ZYMV can be transmitted by contact and highlights the need for on-farm hygiene practices (decontaminating tools, machinery, clothing, and so on) to be included in integrated disease management strategies for ZYMV in cucurbit crops.

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