Seismic analysis of the tuned‐inerter‐damper enhanced mega‐sub structure system

Liang, Qigang; Li, Luyu; Yang, Qitao

doi:10.1002/stc.2658

Cited by 9 publications

(7 citation statements)

References 27 publications

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“…As a mass element with two end points, it can be effectively applied to the design of vibration isolation system, breaking through the traditional inherent structure of ''springdamper'' and having better vibration isolation performance. A large number of studies [14][15][16][17][18] have also confirmed that the vibration isolation system with inerter can achieve good results in related fields. In the field of automobile suspension, the inerter (Inerter-Spring-Damper suspension, ISD suspension) also shows its excellent vibration isolation performance.…”

Section: Introductionmentioning

confidence: 88%

“…The maximum allowable space of vehicles with lower chassis, such as cars, is smaller, while the maximum allowable space of vehicles with higher chassis, such as buses or heavy vehicles, is larger. The constraint expression for the dynamic travel of suspension is shown in Formula (14).…”

Section: Design Of Mpc Systemmentioning

confidence: 99%

“…In formula (14), when the vehicle speed is less than 30 m/s, l min is set to 220 mm and l max is set to 20 mm.…”

Section: Design Of Mpc Systemmentioning

confidence: 99%

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Research on predictive coordinated control of ride comfort and road friendliness for heavy vehicle ISD suspension based on the hybrid-hook damping strategy

Yang

Shen

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part D:

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With the appearance of inerter, the ISD suspension composed of “Inerter-Spring-Damper” opens up a new direction for efficient coordination of ride comfort and road friendliness for heavy vehicles. In this paper, a reference model based on the hybrid-hook damping strategy is proposed, and the mechatronic inerter is used as an active suspension force generator in the actual controlled model. Then, the coordinated control of the vehicle ISD suspension model is realized by the model predictive control (MPC) approach. The test results show that, the RMS values of the body acceleration and dynamic tire load of the controllable ISD suspension is smaller than the traditional passive and passive ISD suspension under the sinusoidal road inputs. Under the random road input, compared with the traditional passive suspension, the controllable ISD suspension has improved the RMS value of the body acceleration by 26.61%, and the road damage coefficient has been improved by 20.13%. Experiments show that the controllable ISD suspension of heavy vehicles based on the hybrid-hook damping strategy has comprehensive improvement of vehicle ride comfort and road friendliness.

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Section: Introductionmentioning

confidence: 88%

Section: Design Of Mpc Systemmentioning

confidence: 99%

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Research on predictive coordinated control of ride comfort and road friendliness for heavy vehicle ISD suspension based on the hybrid-hook damping strategy

Yang

Shen

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part D:

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“…Unlike two-unit vibration control models, three-unit vibration reduction models generally have two optimal parameters that result in optimal control performance under specific conditions for the units. Existing research on three-unit vibration reduction models mainly focuses on theoretical closed-form solutions based on optimal performance objectives 21,22 and performance optimization analysis in relevant structural systems, 23 as well as performance-based optimal design methods. 24 In single-degree-of-freedom structures, the three-unit vibration reduction model can achieve a double-tuning effect similar to traditional TMD systems without the need for a large actual tuned mass.…”

Section: Introductionmentioning

confidence: 99%

Dynamic performance of structures with clutching inertia‐damping system: Theoretical study

Liang,

Bai,

et al. 2023

Earthq Engng Struct Dyn

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This paper addresses performance limitations in passive clutching inertia devices due to the absence of flywheel deceleration damping. A solution introducing viscous damping to serve as the flywheel deceleration mechanism is proposed, thus forming the “CIDS” (Clutching Inertia‐Damping System). The study establishes a multi‐body motion analysis model for the CIDS within a single‐degree‐of‐freedom structure. Simulations investigate the impact of control force model parameters on the computation. The impact of additional damping on structural dynamic responses and the system's relative motion is thoroughly elucidated and revealed through dynamic simulations and multi‐body motion decomposition. The “ELS” (Equivalent Linear System) is introduced for the simplified performance assessment of CIDS. Expressions for equivalent damping and inertance are derived based on the equivalence of vibration period and energy in sinusoidal steady‐state vibration. The feasibility and accuracy of ELS for assessing CIDS's performance are validated through response analyses under harmonic and seismic excitations. Notably, displacement indicators exhibit higher precision than acceleration. When subjected to seismic excitation, selecting a more suitable excitation frequency to determine the corresponding equivalent damping can enhance the accuracy of ELS. Considering the frequency dependence of equivalent damping, a frequency‐domain‐based random response evaluation method is proposed. The influence of additional rotational damping, flywheel inertia, and structural natural period on random response is evaluated and analyzed. In CIDS with similar rotational damping and inertia, its control effect is related to the excitation. In summary, this study offers a structured framework for comprehending and evaluating the performance of CIDS, offering valuable insights into its potential engineering design, applications, and analysis.

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“…Recently, Refs. [15,16] applied the concept of substructuring with a tuned-inerter-damper to enhance the performance of a mega substructure system.…”

Section: Introductionmentioning

confidence: 99%

Experimental Dynamic Response of a Multi-Story Frame Structure Equipped with Non-Conventional TMD Implemented via Inter-Story Isolation

Basili

Angelis

2022

Applied Sciences

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A shaking table experiment conducted on a multi-degrees-of-freedom frame structure equipped with a non-conventional tuned mass damper (TMD) is presented. The non-conventional TMD is characterized by a high mass ratio, without adding further structural masses, and is realized via inter-story isolation. The structure top story mass of a four-story steel frame structure is isolated and converted into tuned mass, connecting to the substructure with two high damping rubber bearings placed in series. Aspects related to the dynamic structural response as well as the seismic effectiveness assessment of a non-conventional TMD are addressed. Three structural configurations are tested: the reference four-story structure, the three-story intermediate structure, and the three-story structure equipped with a non-conventional TMD. The input motion conditions considered are: white noise, sine sweep, and natural earthquakes. Through experiments, structural identification is carried out and different dynamic behaviors emerge for the configurations tested. The nonlinear effects provoked on the structure by the adopted isolators are investigated, showing high dissipative capabilities in a wide range of amplitudes of the excitation. It is demonstrated that a non-conventional TMD is a smart control strategy useful for enhancing structural vibration mitigation.

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Seismic analysis of the tuned‐inerter‐damper enhanced mega‐sub structure system

Cited by 9 publications

References 27 publications

Research on predictive coordinated control of ride comfort and road friendliness for heavy vehicle ISD suspension based on the hybrid-hook damping strategy

Research on predictive coordinated control of ride comfort and road friendliness for heavy vehicle ISD suspension based on the hybrid-hook damping strategy

Dynamic performance of structures with clutching inertia‐damping system: Theoretical study

Experimental Dynamic Response of a Multi-Story Frame Structure Equipped with Non-Conventional TMD Implemented via Inter-Story Isolation

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