Developing a New Design for Adaptive Tuned Dynamic Vibration Absorber (ATDVA) Based on Smart Slider-Crank Mechanism to Control of Undesirable Vibrations

Mirsanei, Reza; Hajikhani, Aidin; Peykari, Behzad; Hamedi, Jahanbakhsh

doi:10.11159/ijmem.2012.010

Cited by 5 publications

(7 citation statements)

References 6 publications

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“…The other values of the optimal ω22/ω11 for 0.1, 0.2, 0.3 are relatively closer to each other. So, one 3 rd order polynomial model was fitted to those optimal data as: ω 22 /ω 11 = -1.91657μ 3 + 4.09031μ 2 -2.50654μ + 0.612128 (8) With 0.9440 correlation coefficient…”

Section: Fig2 Optimal Absorber-harvester Natural Frequency Ratiomentioning

confidence: 99%

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Optimal Design of a Vibration Absorber-Harvester Dynamic System

Hassaan¹

2014

IJRET

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Vibration dynamic absorber is in use to reduce machinery vibrations. This paper presents a novel idea for using the mass-spring absorber as an energy harvester. The aim is to tune the absorber to cancel the machine vibration and produce maximum vibration of the absorber mass to act as an energy harvester. The main vibrating system is damped and assumed as a SDOF. A new frequency is defined called harvesting frequency at which the amplitude of the absorber mass vibration is maximum. It is shown that his frequency is dependent only on the mass ratio of the absorber and independent of the main system damping ratio. The optimal operation of the proposed system is investigated for damping ratio between 0.1 and 0.4 and mass ratio between 0.05 and 4.5. The absorber succeeds to eliminate completely the main system vibrations at a tuning condition and provides high vibration amplitude at the absorber mass at the new defined harvesting frequency..

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Section: Fig2 Optimal Absorber-harvester Natural Frequency Ratiomentioning

confidence: 99%

“…Mirsanei et.al. (2012) presented a design for an adaptive tuned dynamic vibration absorber based on a smart slider-crank mechanism [8]. Shen and Ahmadian (2013) studied analytically four semi-active dynamic vibration absorbers including the time delay induced by measurement and execution.…”

Section: Introductionmentioning

confidence: 99%

Optimal Design of a Vibration Absorber-Harvester Dynamic System

Hassaan¹

2014

IJRET

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“…Nowadays, damper mass spring system is widely applied in a variety of industrial engineering applications such as vehicle suspension system [1]. It is one of the most important component in vehicles which has been designed and arranged to provide several advantages such as providing smooth ride over rough ground, leading to improve the comfort quality of riding and gain more safety versus dynamical and impact forces [2]. In fact dampers mass spring system consists of passive and active element which can be added to a mechanical vibration system in order to achieve better performance [3].…”

Section: Introductionmentioning

confidence: 99%

“…Actually they have several advantages over metallic counterparts in improvement the behavior of vibration control system. They can be founded in most of the commercially available passenger cars which have been equipped with passive spring and damper suspension systems [1][2][3]. The purpose of this work is to design and implementation a controlled model of damper mass spring system which mainly consists of spring, dashpot and electromechanical position sensor.…”

Section: Introductionmentioning

confidence: 99%

Investigating the Effect of the Various Stiffness Coefficient on the Controlled Damper Mass Spring System Based on the Electromechanical Sensor

Badr¹,

Tjprc²

2019

IJMPERD

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This work is concerned with investigation the effect of the stiffness coefficient for the spring elements in the mechatronics applied system consists of damper mass spring system linked to the electrical position sensor. The suggested approach contains experimental work as well as theoretical analysis to meet the demand of the proposed system. In the application of the system; the practical work requires to set up a test rig involves the apparatus as well as three models of spring which has been selected to achieve the desired performance. It has been treated as un-damped vibrations case to measure the tolerance in the displacement distance with respect to specified reference point due to apply various values of mechanical load. The electrical position sensor has been used to convert the obtained values of the displacement distance to corresponding value of electrical signal which has been sent to electrical control unit. Comparison between practical and theoretical results has been carried out to realize the best results of the employed system. The simulation process results with using Matlab software package showed that there is a much greater similarity between the obtained practical and theoretical results and the proposed model can be applied with high efficiency. The little bit difference between theoretical and practical results may be occurred due to the accuracy of the employed measurement devices.

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“…Moreover, vibration absorption is used to neutralize a certain resonance by adding a secondary system consisting of an auxiliary mass, spring and damping [11]. This approach is based on the torque of this subsystem being opposed to the excitation torque at the respective frequency.…”

Section: Enhancement Of the Systemmentioning

confidence: 99%

Root cause investigation and prevention of dynamic fluctuations in angular-resolved torque measurements of high pressure fuel pumps

Schindler

Hergemöller

Tödter

et al. 2017

Automot. Engine Technol.

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In terms of better fuel mixture preparation, both finer atomization and higher system pressure are indispensable. These objectives provoke high mechanical loads on modern injection systems. In particular, the driving torque of the high pressure pump is proportionally linked to the system pressure within the pump cylinder. This article focuses the challenge of measuring angular-resolved torque fluctuations induced by the high pressure pump on a component test bench. After describing a systematic measurement failure consisting of unexpected dynamic proportions within the torque signal, the disturbance is analyzed at steady-state and transient operating conditions of the test bench. Consequently, a method for detecting and analyzing the same within the measurement chain of the signal is suggested. Based on the identification of the root cause of the dynamic fluctuations, enhancement proposals are discussed, realized and validated.

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Developing a New Design for Adaptive Tuned Dynamic Vibration Absorber (ATDVA) Based on Smart Slider-Crank Mechanism to Control of Undesirable Vibrations

Cited by 5 publications

References 6 publications

Optimal Design of a Vibration Absorber-Harvester Dynamic System

Optimal Design of a Vibration Absorber-Harvester Dynamic System

Investigating the Effect of the Various Stiffness Coefficient on the Controlled Damper Mass Spring System Based on the Electromechanical Sensor

Root cause investigation and prevention of dynamic fluctuations in angular-resolved torque measurements of high pressure fuel pumps

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