stiffness and vibration damping capacity of high strength cast

Research on the Seismic Performance of Straw Panel

Infill wall-frame interaction-induced damage and failure have been found in many previous earthquakes due to the inappropriate estimation of the stiffness of infill walls. It is a common knowledge of design philosophy that properly lowering the lateral stiffness of infill wall may significantly improve the seismic performances of concrete frames. Fabricated straw wall, a sandwich-type

Damping Properties of Selected Steels and Cast Irons

damping capacities (ability to absorb vibration). Researchers measured damping capacity and other properties and investigated the effects of carburizing, spheroidizing, and annealing. The investigators found that in carbon and alloy steels, rounded

Comparative Study of Transverse Vibration and Mechanical

High-frequency vibration or long-term weak frequency vibration can cause machinery failure. Internal vibration damping Rohatgi et al. (1976) enhanced damping capacity and machinability of cast pure aluminium and its alloy by adding graphite particles

S tructural composite materials tailored for damping D.D.L. Chung

storage modulus. The attaining of a significant damping Materials for vibration damping are mainly metals [11– capacity while maintaining high strength and stiffness 13] and polymers [14–16], due to their viscoelastic character. Rubber is commonly used as a

PAPER OPEN ACCESS Related content Metallic materials for mechanical damping capacity applications

behaviors: very high internal friction (high dissipation capacity, vibration damping and sound) or very low (bells, resonators elements etc.). Beside shape memory effect and superelasticity properties some shape memory alloys (SMA) have a high capacity

Measurement of the damping capacity and dynamic modulus of high

J. Phys. D: Appl. Phys., Vol5,1972. Printed in Great Britain. 0 1972 Measurement of the damping capacity and dynamic modulus of high-damping metals under direct cyclic stresses R D ADAMS and MA 0 FOX Dcpartment of Mechanical Engineering, University

Stiffness and Vibration Damping Cap SAE 2016

Stiffness and vibration damping capacity of high strength cast irons W. L. Guesser, L. P. R. Martins TUPY/UDESC In the engine, the use of high strength cast iron grades, such as gray iron grade 300 (UTS min = 300 MPa) and compacted graphite iron grade

Simultaneously high stiffness and damping in a class of

2013/7/1They demonstrated using numerical optimization that high damping and high stiffness can be simultaneously obtained. In the present work, a numerical study is performed by exploiting the concept of sandwiching an ultra thin polymer layer in between thick wavy steel layers, to improve the 'in-plane' stiffness and damping properties of the resulting composite.


Nowadays it is commonly considered that high damping materials which have both the good mechanical properties as structural materials and the high damping capacity for vibration damping are the most direct vibration damping solution. In metals and alloys however, exhibiting simultaneously high damping capacity and good mechanical properties has been noted to be normally incompatible

Heat treatment effect on the damping capacities of Mg Si/AZ91D

Developing a kind of high damping material to produce the equipment and structural components can achieve the purpose of reducing vibration and noise. Magnesium alloys have high specific strength, high specific stiffness and excellent shock absorption 2

stiffness of structures and drives in fast milling machines

Stiffness of Structures and Drives in Fast Milling Machines Jun 05, 1999 A stiffness requirement for high speed milling machines is determined by examining the stiffness of current generation high speed spindles. The desire for stability against chatter dictates that


such as stiffness and damping of the material determine the level of the transmission of vibration through the material (Rivin, 2003). In most applications, a high damping capacity, expressed by the damping ratio, is desired (Vaidya et al., 2006). Our study

Topology optimization of multiphase architected materials for

•Efficient tools for estimating damping capacity and stiffness of multiphase materials. •Multiphase cellular materials topologies for single and multiple target frequencies. •Superior hybrid cellular topologies with high stiffness and damping and low density. Abstract

Stiffness and vibration damping capacity of high strength cast

wall engine blocks, may result in decrease in vibration damping capacity, even still far superior to aluminum cylinder blocks. This paper deals with damping capacity and elastic modulus of high strength cast irons, considering how the


innovative high-tech material. Using it as core in sandwiches and profiles, it is possi-ble to tailor its properties such as stiffness and strength, damping, high temperature and corrosion resistance. Consequently, e.g. working temperatures up to 1,100 C

Epoxy granite

Epoxy granite, also known as synthetic granite,[1] is a mixture of epoxy and granite commonly used as an alternative material for machine tool bases. Epoxy granite is used instead of cast iron and steel for better vibration damping, longer tool life, and lower assembly cost.

Metal anti

Static load: 50 N - 5,100 N Spring mounts, rubber and steel Body and no-slip coating: NBR rubber.Hardness 60 Shore A 5. Spring and plate: Zinc-plated steel. Spring caps: Alum Static load: 9 kgf - 250 kgf Diameter: 10 mm - 12 mm Rubber-Metal Isolators CM-VSC2 Ideal for all environments and spatial axes Highly resilient vibration isolators Natural frequency 5.9 Hz to 35 Hz Load range 9 kg to

High dynamic stiffness mechanical structures with nanostructured composite coatings deposited by high

damping property compared to malleable and high strength cast iron. Interference patterns on optical coatings revealed that grey cast has a larger local strain concentration and local strain variation than other types of cast iron [9, 10]. It was

Engineering Fundamentals Refresh: Strength vs. Stiffness

Understanding the mechanical properties of strength vs. stiffness vs. hardness is foundational in mechanical engineering, yet these properties can often be confused. These properties are related, but there are very important differences between them: Stiffness is an indicator of the tendency for an element to return to its original form after being subjected to a force.

Sorbothane Visco

What is Sorbothane ? Sorbothane is a proprietary, visco-elastic polymer. Sorbothane is a thermoset, polyether-based, polyurethane material. In addition to being visco-elastic, Sorbothane also has a very high damping coefficient. Sorbothane combines shock absorption, good memory, vibration isolation and vibration damping characteristics. . While many materials exhibit one of

Mechanical Properties of Gray Iron

Damping capacity decreases with increasing strength since the larger amount of graphite present in the lower strength irons increases the energy absorbed. Larger cast section thicknesses increase damping capacity and inoculation usually decreases it.

Effect of aging treatment on the damping capacity and

2015/3/31The damping capacity and mechanical properties of Mg-6Al-1Zn alloy after heat treatment were investigated. Enhancement of damping properties is recognized to be attained by dislocation, interface of particles with different stiffness, and high damping particle

2020 JETIR August 2020, Volume 7, Issue 8 (ISSN

Materials that possess high damping and high stiffness are not common in any mechanical components. Their vibration damping depends on the visco-elastic nature of the materials. They are mainly obtained from all categories of materials such as the In this

Variation of damping property of polymer composite under saline

damping value by a maximum of 47% of the composites. Keywords: damping, environment, glass fibre, influence. I.INTRODUCTION Glass fibre reinforced polymer (GFRP) composites owing to their high specific strength and anti-corrosive property are used in

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