An Improved Biomechanical Model to Optimize Biodynamic Responses Under Vibrating Medium

Guruguntla, Veeresalingam; Lal, Mohit

doi:10.1007/s42417-020-00254-x

Cited by 11 publications

(11 citation statements)

References 25 publications

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“…From Table 10 the maximum exhaustive goodness of fit for the best four models (8- dofs 36-2 , 8- dofs 36-3 , 8- dofs 32-4 , and 8- dofs 36-1 ) is observed as 97.3, 96.1, 96.9, and 96.5 respectively. Whereas this value for Wan and Chimes, 16 Gan et al, 22 and Guruguntla and Lal 23 model are 85.90, 86.66, and 93.47, respectively. It indicates the proposed model can represent the biodynamic responses close to experimental responses compared to Wan and Chimes, 16 Gan et al, 22 and Guruguntla and Lal 23 model.…”

Section: Parameter Identificationmentioning

confidence: 89%

“…Whereas this value for Wan and Chimes, 16 Gan et al, 22 and Guruguntla and Lal 23 model are 85.90, 86.66, and 93.47, respectively. It indicates the proposed model can represent the biodynamic responses close to experimental responses compared to Wan and Chimes, 16 Gan et al, 22 and Guruguntla and Lal 23 model.…”

Section: Parameter Identificationmentioning

confidence: 89%

“…The biodynamic responses (STHT, DPMI, and AM) of these four models are plotted and compared with the experimental biodynamic responses, 34 Wan and Chimes, 16 Gan et al, 22 and Guruguntla and Lal. 23 The comparison of biodynamic responses are presented in Figure 7. From Figure 7, it can be observed that all the four models (8- dofs 36-2 , 8- dofs 36-3 , 8- dofs 32-4 , and 8- dofs 36-1 ) represent good agreement with the experimental responses 34 for STHT, DPMI, and AM.…”

Section: Parameter Identificationmentioning

confidence: 99%

“…They concluded that most of the human body parts are affected by horizontal excitation rather than vertical. By increasing the degrees of movement at back and lower torso, 4- dofs model proposed by Wan and Chimes 16 is modified to 9- dofs model for a seated occupant in Harsha et al 21 A 6- dofs model is proposed to study the influence of a backrest effect on biodynamic responses of seated passengers in the study Gan et al 22 Recently Guruguntla and Lal 23 a 10- dofs model which mimics the humankind structure is developed and optimized all segmental properties with the firefly algorithm. Later model and sensitive analysis carried on that model.…”

Section: Introductionmentioning

confidence: 99%

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Development and analysis of a novel biomechanical model for seated occupants

Guruguntla

Lal

2021

Proceedings of the Institution of Mechanical Engineers, Part D:

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Seated occupants may experience discomfort or meet with injuries if the vertical vibration frequency lies in the range of 4–20 Hz. To examine the effect of vibration on seated occupants, it is necessary to develop a biomechanical model that can precisely predict the biodynamic responses (seat to head transmissibility, driving point mechanical impedance, and apparent mass) of a real human. In the past, none of the studies segregated the human body mass into bones and muscles mass that have distinct mechanical properties. In this article, the work is carried out in four steps: first, development of a novel 8- dofs biomechanical model by considering both bone and muscle masses; second, development of all the feasible configurations of 8- dofs model followed by identification and optimization of model parameters with firefly algorithm (FA); third, calibration of all the feasible models as per the standards of biodynamics and selection of best four models; and fourth, comparison of biodynamic responses of best four models with experimental responses and past developed models. The goodness of fit of a seat to head transmissibility, driving point mechanical impedance, and apparent mass for the best model is obtained 0.986, 0.976, and 0.956, respectively.

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Section: Parameter Identificationmentioning

confidence: 89%

Section: Parameter Identificationmentioning

confidence: 89%

Section: Parameter Identificationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Development and analysis of a novel biomechanical model for seated occupants

Guruguntla

Lal

2021

Proceedings of the Institution of Mechanical Engineers, Part D:

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“…As the significant research topics of modern control theory, the research works on second-order systems have attracted considerable attentions (Gu, Zang, and Duan, 2016; Gu, Zhao, Liu, et al, 2016; Guzzardo et al, 2013; Tian and Duan, 2020; Zhang and Liu, 2012). There exists many control precisions and frequency problems caused by some eigenvalues in second-order systems, such as mechanical arm vibration systems (Li and Zhang, 2019), path channels control systems (Shi et al, 2020), and biomechanical systems (Guruguntla and Lal, 2021). These problems can be solved by the eigenstructure assignment method which is to change some eigenvalues and corresponding eigenvectors using the appropriate control law (Cai et al, 2011; Zhang et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Numerical approach for partial eigenstructure assignment problems in singular vibrating structure using active control

Wang

2021

Transactions of the Institute of Measurement and Control

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In the paper, the partial eigenstructure assignment problems are investigated using acceleration–velocity–displacement active control in a singular vibrating structure. The problems are transformed into solving matrix equations using the receptance matrix method. Iterative sequences are constructed, and the iterative feasibility is presented for solving the matrix equations. The partial eigenvectors of the closed-loop system are reassigned by imposing modal constraints. An algorithm is proposed to get numerical solutions of the derived matrix equations. The initial value condition is discussed to obtain the minimum norm solution of the partial eigenstructure assignment problems. The designed acceleration–velocity–displacement active control can solve the partial eigenstructure assignment problems depending only on original vibrating structure information. The proposed numerical algorithm can obtain the minimum norms of controller gain, which implies minimum energy consumption. Numerical examples are given to illustrate the effectiveness of the proposed methods.

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Analysis of Segmental Vibration Transmissibility of Seated Human

Guruguntla

Lal

2022

Applications of Computational Methods in Manufacturing and Product Design

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An Improved Biomechanical Model to Optimize Biodynamic Responses Under Vibrating Medium

Cited by 11 publications

References 25 publications

Development and analysis of a novel biomechanical model for seated occupants

Development and analysis of a novel biomechanical model for seated occupants

Numerical approach for partial eigenstructure assignment problems in singular vibrating structure using active control

Analysis of Segmental Vibration Transmissibility of Seated Human

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