Control Performance and Robustness of Pounding Tuned Mass Damper for Vibration Reduction in SDOF Structure

Xue, Qichao; Zhang, Jingcai; He, Jian; Zhang, Chunwei

doi:10.1155/2016/8021690

Cited by 34 publications

(32 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the primary structure response, the mass ratio has little e ect and its regularity is poor, while the frequency ratio has a greater e ect and is more regular. However, the primary structure response is less robust [27] at a low frequency (approximately 0.5 to the limit). Compared to the primary structure, the e ect of the frequency and mass ratios on the secondary structure is greater, and the e ect of the mass ratio is more regular.…”

Section: Parameter Analysis Under Random Earthquakementioning

confidence: 99%

Study on Interactive Damping of Primary‐Secondary Coupled System

Zhu

Zhou

Dai

2019

Shock and Vibration

View full text Add to dashboard Cite

In order to study the interactive damping of a primary-secondary coupled system, three damping strategies are presented. Based on it, three dynamic models were established: the 2-DOF series model, spatial dynamic model, and 3-DOF series model. According to the concept and calculation methods of random vibration, the displacement, velocity, and acceleration variances of each model were derived as response functions of the coupled system. Using MATLAB to analyze the response functions, we studied the manner in which the system response is affected by the frequency and mass ratios of the primary structure and secondary structures, the plane layout of the secondary structure, and the quality, frequency, and damping of the connection structure, respectively. ereafter, combined with the multiobjective optimization method, optimal parameters were selected to minimize the coupled system response in order to achieve interactive damping.

show abstract

Section: Parameter Analysis Under Random Earthquakementioning

confidence: 99%

Study on Interactive Damping of Primary‐Secondary Coupled System

Zhu

Zhou

Dai

2019

Shock and Vibration

View full text Add to dashboard Cite

show abstract

“…Another benefit of the viscoelastic delimiter is that it can enhance the robustness of the PTMD. According to the literature [9,10], in the off-tuned case, the relative motion between the tuned mass and the delimiter is larger than that of the optimal-tuned case. Therefore, in the off-tuned case, the added mass will impact the viscoelastic material more severely, generating a larger pounding force, resulting in larger momentum exchange and energy dissipation.…”

Section: Introductionmentioning

confidence: 96%

“…In other words, the viscoelastic delimiter introduced the energy dissipation mechanism for impacts to the PTMD. Therefore, the PTMD is more effective than the regular TMD in vibration reduction [8,9]. Another benefit of the viscoelastic delimiter is that it can enhance the robustness of the PTMD.…”

Section: Introductionmentioning

confidence: 99%

Impact Fatigue of Viscoelastic Materials Subjected to Pounding

2018

View full text Add to dashboard Cite

Abstract:The pounding tuned mass damper (PTMD) is a novel vibration control device that can be used for many different structures. The PTMD utilizes a viscoelastic delimiter to enhance its vibration control effectiveness and robustness though pounding between the tuned mass and the viscoelastic material. However, the viscoelastic material is subjected to repeated poundings during its service life, which influences the property of the material and degrades its energy dissipation ability. Therefore, this study investigates the fatigue behavior of the viscoelastic material under impact loading. An experimental apparatus, which can generate and sense the lateral impacts, is designed and fabricated to facilitate the fatigue study of the viscoelastic material subject to impact loading. Based on experimental data, the pounding stiffness and the hysteresis loops are employed to characterize the behavior of the material. It is revealed that the impact fatigue process can be divided into two phases: the cyclic-hardening phases and the cyclic-softening phase. The energy dissipation is firstly reduced, and then increased, by the repeated impacts. In summary, with a total of 360,000 impacts, the viscous elastic material is still effective in dissipating impact energy.

show abstract

“…The simplicity of the design allows the PTMD to be easily adapted to different conditions and usages; and since the PTMD is robust and can maintain its performance for long periods of time, the need for maintenance is reduced. In recent years, PTMD has been extensively studied for implementation in different types of facilities [37][38][39][40], including frame structures [41], subsea jumpers [42,43], power transmission towers [44], etc. In a previous study by the authors [45], two types of PTMDs (spring steel type and pendulum type) associated with viscoelastic (VE) material were designed.…”

Section: Introductionmentioning

confidence: 99%

Implementation of Shape Memory Alloy Sponge as Energy Dissipating Material on Pounding Tuned Mass Damper: An Experimental Investigation

et al. 2019

View full text Add to dashboard Cite

Piping systems are important nonstructural components of most types of buildings. Damage to piping systems can lead to significant economic losses, casualties, and interruption of function. A survey of earthquake disaster sites shows that suspended piping systems are flexible and thus prone to large deformation, which can lead to serious damage of the piping systems. The single-sided pounding tuned mass damper (PTMD), which is an emerging vibration suppression tool, has the potential to serve as a cost effective and non-invasive solution for the mitigation of vibration in suspended piping systems. The operating frequency of the single-sided PTMD can be tuned similarly to a tuned mass damper (TMD). The single-side PTMD also possesses high energy dissipation characteristics and has demonstrated outstanding performance in vibration control. One of the key factors affecting the performance of the PTMD is the damping material, and there is a constant search for the ideal type of material that can increase the performance of the PTMD. This paper explores the use of shape memory alloy (SMA) sponge as the damping material for two types (spring steel and pendulum types) of PTMDs to mitigate the vibration of a suspended piping system. The PTMDs are tested both in free vibration and in forced vibration. The results are compared with no control, with a TMD control, and with a viscoelastic (VE) material PTMD control. The results show that in free vibration tests, SMA–PTMDs attenuate the displacement of the piping system significantly. The time to mitigate vibration (i.e., reduce 90% of the vibration amplitude) is reduced to 6% (for spring steel type) and 11% (for pendulum type) of the time taken to mitigate vibration without control. In forced vibration tests, the overall magnitudes of the frequency response are also lowered to 38% (spring steel) and 44% (pendulum) compared to vibration without control. The results indicate that SMA has the potential to be a promising energy dissipating material for PTMDs.

show abstract

Control Performance and Robustness of Pounding Tuned Mass Damper for Vibration Reduction in SDOF Structure

Cited by 34 publications

References 22 publications

Study on Interactive Damping of Primary‐Secondary Coupled System

Study on Interactive Damping of Primary‐Secondary Coupled System

Impact Fatigue of Viscoelastic Materials Subjected to Pounding

Implementation of Shape Memory Alloy Sponge as Energy Dissipating Material on Pounding Tuned Mass Damper: An Experimental Investigation

Contact Info

Product

Resources

About