Mechanical Systems and Signal Processing
IF
6.82
Papers
7,700
Papers 7,482
1 page of 749 pages (7,482 results)
Newest
#1Cheng-Yuan Chang (CYCU: Chung Yuan Christian University)
#2Chia-Tseng Chuang (CYCU: Chung Yuan Christian University)
Last. Chia-Hao Lin (CYCU: Chung Yuan Christian University)
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Abstract null null This work describes a multi-functional active noise control (ANC) system installation in an airplane seat. Most researchers in the field have focused on systems that cancel narrowband noise on headrests owing to the causality constraint of ANC system. Therefore, ANC systems in seats have limited performance. In this paper, an ANC system is designed for an airplane seat and the electronic delay of the ANC system is reduced to meet the causality requirement of a feedforward ANC ...
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#1Lei Xing (CSU: Central South University)
#2Wujiao Dai (CSU: Central South University)
Last. Yunsheng Zhang (CSU: Central South University)
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Abstract null null Displacement measurement is a major concept in the daily maintenance and failure assessment of engineering structures. Vision-based systems offer a cost-effective, simple alternative for non-contact displacement measurement. However, its measurement is challenging because of the errors induced by camera instability (thermal effects on camera sensor and camera motion). Researchers have tried to compensate for the errors induced by camera instability in displacement calculation ...
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#1Xu Zhangbao (AHUT: Anhui University of Technology)H-Index: 2
Last. Jianyong Yao (NUST: Nanjing University of Science and Technology)H-Index: 19
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Abstract null null In this paper, the control problem of a class of nonlinear systems with uncertainties and full state constraints is investigated and a full state constraint controller with parameter estimation and disturbance compensation is designed. Adaptive control for parametric uncertainties and extended state observer for uncertain nonlinearities are integrated into the barrier Lyapunov function-based full state constraint control via backstepping design, ensuring the nonviolation of fu...
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#1Zeyu Jia (NPU: Northwestern Polytechnical University)
#2Yongfeng Yang (NPU: Northwestern Polytechnical University)H-Index: 9
Last. Wangqun Deng (Arkansas Electric Cooperative Corporation)H-Index: 3
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Abstract null null Rotor system is often affected by various uncertain factors during work, which may affect the normal working process of the rotor system. In this paper, aiming at the uncertainty of the Jeffcott rotor system, a non-probabilistic convex model is constructed to describe the uncertain parameters. By introducing the non-embedded Chebyshev expansion function, the Chebyshev Convex Method (CCM) is proposed. Then, the CCM is employed to calculate the rotor response when the mass and b...
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#1Mengyue He (XMU: Xiamen University)H-Index: 3
#2Karthik Ram Ramakrishnan (University of Oxford)H-Index: 9
Last. Jiyang Fu (Guangzhou University)H-Index: 17
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Abstract null null In this paper, a combined global-local strategy was developed for structural health monitoring (SHM) of fiber reinforced polymer (FRP) composites to assess the internal delamination damage, which has combined vibrational frequency shifts as the global index and the fiber Bragg grating (FBG) wavelength shifts as the local index. The delamination detection was carried out in two steps. The first step was based on the global damage index, which is the changes in multiple modes of...
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#1Alberto Di Matteo (University of Palermo)H-Index: 11
#2Chiara Masnata (University of Palermo)H-Index: 4
Last. Antonina Pirrotta (University of Palermo)H-Index: 25
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Abstract null null In this paper, the use of a novel passive control device defined as Tuned Liquid Column Damper Inerter (TLCDI) is studied to control the seismic response of structural systems. The TLCDI, recently introduced as an enhanced version of the conventional Tuned Liquid Column Damper, may achieve improved seismic performances by exploiting the mass amplification effect of the so-called inerter device. For this purpose, an optimization procedure for the design of the TLCDI based on a ...
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#1Ding Wenhao (SWJTU: Southwest Jiaotong University)H-Index: 1
#2Kai Wei (SWJTU: Southwest Jiaotong University)H-Index: 8
Last. Ping Wang (SWJTU: Southwest Jiaotong University)H-Index: 15
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Abstract null null To evaluate the reliability of the dynamic irregularity of a track structure in satisfying the safety requirements, a stochastic virtual track inspection (SVTI) system that can be used to predict the time-varying probability distribution of dynamic irregularity was developed by combining virtual track inspection (VTI) system and the generalized probability density evolution method (GPDEM) in this study. A train–track–bridge dynamic interaction model (TTBDIM) was built using th...
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#1Ba Kaixian (YSU: Yanshan University)H-Index: 7
#2Yanhe Song (YSU: Yanshan University)H-Index: 1
Last. Ma Guoliang (YSU: Yanshan University)
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Abstract null null The semi-cylindrical foot end of a legged robot is suitable for the robot movements in complex environments and is the most commonly used foot end type. However, its actual contact point will deviate from the ideal contact point when it touches the ground to support the robot or when it slips due to its specific structure, resulting in trajectory deviation. To solve this deviation problem between the actual and desired contact positions of the robot foot end, this study propos...
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#1Dianelys Vega Ruiz (UFRJ: Federal University of Rio de Janeiro)H-Index: 1
#2Carlos Magluta (UFRJ: Federal University of Rio de Janeiro)H-Index: 13
Last. Ney Roitman (UFRJ: Federal University of Rio de Janeiro)H-Index: 12
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Abstract null null A set of empirical equations to estimate parameters and initial conditions for a biomechanical bipedal walking model is proposed in this study. These equations are intended to generate vertical loads induced by humans on rigid ground. Forty-five volunteers are recruited to participate in an experimental program to walk on a rigid surface covered by force plates, in which the walking forces are measured. The bipedal model is adjusted to fit the vertical ground reaction forces (...
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Abstract null null With advances in sensing and monitoring techniques, real time multi-sensor monitoring data of stochastic degrading devices has become the reality. How to effectively fuse these multi-sensor monitoring data to first construct the composite health index (CHI) and then model its degradation evolving process has become the emerging topic in the field of the remaining useful life (RUL) prediction. However, existing works treat the CHI construction and degradation modeling for progn...
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