The increasing sophistication of modern engine systems has highlighted the importance of advanced vibration control methods. Engines today are required to function under continuously changing operating conditions, particularly in Variable Compression Ratio (VCR) systems, where vibration behavior becomes highly complex, non-linear, and dependent on time. Under such circumstances, conventional engine mounts often struggle to deliver stable and consistent performance. In contrast, hybrid honeycomb structures offer significant advantages due to their distinctive cellular design, which improves both energy absorption and load distribution, resulting in more effective vibration attenuation over a wide frequency range.

In addition, filling honeycomb cores with materials like silica gel enhances their viscoelastic damping characteristics, enabling more efficient dissipation of vibrational energy. These hybrid configurations provide flexibility in design, allowing engineers to adjust stiffness and damping properties to suit specific operational needs. This flexibility is especially beneficial for VCR engines, where parameters such as compression ratio and combustion dynamics are continuously altered during operation.

Advancements in analytical and experimental methods have further improved the understanding of how these mounts behave under dynamic conditions. Techniques such as Finite Element Analysis (FEA) and modal analysis are commonly applied to evaluate performance and refine design parameters prior to manufacturing. Findings from these studies indicate that hybrid honeycomb mounts are effective not only in reducing vibration levels but also in enhancing the overall stability and lifespan of engine systems.

In summary, hybrid honeycomb engine mounts represent a notable advancement in vibration isolation technology. Their improved damping performance, along with their ability to be tailored for specific applications, positions them as a strong alternative to traditional mounting systems, particularly for modern IC engines utilizing Variable Compression Ratio technology.

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1. C. Senthilkumar and D. Vasudevan, “Performance analysis of vibration characteristics on VCR engine using hybrid honeycomb structure,” Trans. Canadian Soc. Mech. Eng., vol. 47, no. 1, pp. 154–161, Nov. 2022, doi:10.1139/tcsme-2022-0060.
2. Y. Yu, N. G. Naganathan, and R. V. Dukkipati, “A literature review of automotive vehicle engine mounting systems,” Mechanism and Machine Theory, vol. 36, no. 1, pp. 123–142, Jan. 2001, doi:10.1016/S0094-114X(00)00023-9.
3. X. Bai, L. Qian, and P. Chen, “Principle and control of active engine mount basedonmagnetostrictive actuator,” Chinese Journal of Mechanical Engineering, vol. 35, Article 146, 2022.
4. R. Kumar and T. Dhanawade, “Development of systematic technique for design of electric motor mounting system in EV/HEV application,” SAE Technical Paper 2021-26-0165, 2021, doi:10.4271/2021-26-0165.
5. A. Ohadi and G. Magsoodi, “Analysis of automotive engine mounts and vibration isolation,” Int. J. Eng. Sci. Emerging Technol., vol. 3, no. 1, pp. 63–73, 2012.
6. R. Wang, “A study of vibration isolation of engine mount system,” M.A.Sc. thesis, ConcordiaUniv., 2004.
7. “Engine Isolation Angular Mount with Different Types Elastomers,” Materials Today: Proceedings, vol. 5, no. 9, Part 3, pp. 19555–19564, 2018, doi:10.1016/j.matpr.2018.06.317.
8. “Experimental investigation and comparative analysis of rubber engine mount vibration andnoisecharacteristics,” Materials Today: Proceedings, vol. 21, Part 1, pp. 638–642,2020, doi:10.1016/j.matpr.2019.06.730.
9. H. Nakhaie and G. Farid, “Vibration isolation for engine mount systems using an active hybridrobust controller,” TRID, 1999.
10. S. Nakhaie, “Active engine vibration isolation using robust control,” Appl. Mech. Mater., vols. 380–384, pp. 504–507, 2013.
11. A. Büyükbayraktar, “Optimized vibration isolation in diesel generators,” J. Diesel Eng., 2023.
12. “Vibration isolation support mounting system,” AU Patent AU7256891A, Google Patents, 1996.
13. M. Winberg, Noise and Vibration Control of Combustion Engine Vehicles, Ph.D. thesis, Sweden, 2005.
14. J. Selvaraj, “Design optimization of engine mounts for improved vibration isolation,” ArabianJ. Sci. Eng., 2024.
15. L.-z. Wen et al., “Experimental study of engine mount system’s vibration characteristics,”Res.Gate Conf. Paper, 2008.
16. T. Ramachandran and C. Chavan, “Review on internal combustion engine vibrations,” Int. J. Eng. Sci. Emerging Technol., vol. 3, no. 1, pp. 63–73, 2012.
17. M. Müller and U. Weltin, “The effect of engine mounts on the noise and vibration behavior of vehicles,” SAE Paper 940607, 1994.
18. T. Shibayama, K. Ito, T. Gami, et al., “Active engine mount for large amplitude idling vibrations Technical Paper 951298, 1995.

The increasing sophistication of modern engine systems has highlighted the importance of advanced vibration control methods. Engines today are required to function under continuously changing operating conditions, particularly in Variable Compression Ratio (VCR) systems, where vibration behavior becomes highly complex, non-linear, and dependent on time. Under such circumstances, conventional engine mounts often struggle to deliver stable and consistent performance. In contrast, hybrid honeycomb structures offer significant advantages due to their distinctive cellular design, which improves both energy absorption and load distribution, resulting in more effective vibration attenuation over a wide frequency range.

In addition, filling honeycomb cores with materials like silica gel enhances their viscoelastic damping characteristics, enabling more efficient dissipation of vibrational energy. These hybrid configurations provide flexibility in design, allowing engineers to adjust stiffness and damping properties to suit specific operational needs. This flexibility is especially beneficial for VCR engines, where parameters such as compression ratio and combustion dynamics are continuously altered during operation.

Advancements in analytical and experimental methods have further improved the understanding of how these mounts behave under dynamic conditions. Techniques such as Finite Element Analysis (FEA) and modal analysis are commonly applied to evaluate performance and refine design parameters prior to manufacturing. Findings from these studies indicate that hybrid honeycomb mounts are effective not only in reducing vibration levels but also in enhancing the overall stability and lifespan of engine systems.

In summary, hybrid honeycomb engine mounts represent a notable advancement in vibration isolation technology. Their improved damping performance, along with their ability to be tailored for specific applications, positions them as a strong alternative to traditional mounting systems, particularly for modern IC engines utilizing Variable Compression Ratio technology.

🔒 This is a subscription article

Full text is available to subscribers and institutional members. Please choose an option below to access it.

1. C. Senthilkumar and D. Vasudevan, “Performance analysis of vibration characteristics on VCR engine using hybrid honeycomb structure,” Trans. Canadian Soc. Mech. Eng., vol. 47, no. 1, pp. 154–161, Nov. 2022, doi:10.1139/tcsme-2022-0060.
2. Y. Yu, N. G. Naganathan, and R. V. Dukkipati, “A literature review of automotive vehicle engine mounting systems,” Mechanism and Machine Theory, vol. 36, no. 1, pp. 123–142, Jan. 2001, doi:10.1016/S0094-114X(00)00023-9.
3. X. Bai, L. Qian, and P. Chen, “Principle and control of active engine mount basedonmagnetostrictive actuator,” Chinese Journal of Mechanical Engineering, vol. 35, Article 146, 2022.
4. R. Kumar and T. Dhanawade, “Development of systematic technique for design of electric motor mounting system in EV/HEV application,” SAE Technical Paper 2021-26-0165, 2021, doi:10.4271/2021-26-0165.
5. A. Ohadi and G. Magsoodi, “Analysis of automotive engine mounts and vibration isolation,” Int. J. Eng. Sci. Emerging Technol., vol. 3, no. 1, pp. 63–73, 2012.
6. R. Wang, “A study of vibration isolation of engine mount system,” M.A.Sc. thesis, ConcordiaUniv., 2004.
7. “Engine Isolation Angular Mount with Different Types Elastomers,” Materials Today: Proceedings, vol. 5, no. 9, Part 3, pp. 19555–19564, 2018, doi:10.1016/j.matpr.2018.06.317.
8. “Experimental investigation and comparative analysis of rubber engine mount vibration andnoisecharacteristics,” Materials Today: Proceedings, vol. 21, Part 1, pp. 638–642,2020, doi:10.1016/j.matpr.2019.06.730.
9. H. Nakhaie and G. Farid, “Vibration isolation for engine mount systems using an active hybridrobust controller,” TRID, 1999.
10. S. Nakhaie, “Active engine vibration isolation using robust control,” Appl. Mech. Mater., vols. 380–384, pp. 504–507, 2013.
11. A. Büyükbayraktar, “Optimized vibration isolation in diesel generators,” J. Diesel Eng., 2023.
12. “Vibration isolation support mounting system,” AU Patent AU7256891A, Google Patents, 1996.
13. M. Winberg, Noise and Vibration Control of Combustion Engine Vehicles, Ph.D. thesis, Sweden, 2005.
14. J. Selvaraj, “Design optimization of engine mounts for improved vibration isolation,” ArabianJ. Sci. Eng., 2024.
15. L.-z. Wen et al., “Experimental study of engine mount system’s vibration characteristics,”Res.Gate Conf. Paper, 2008.
16. T. Ramachandran and C. Chavan, “Review on internal combustion engine vibrations,” Int. J. Eng. Sci. Emerging Technol., vol. 3, no. 1, pp. 63–73, 2012.
17. M. Müller and U. Weltin, “The effect of engine mounts on the noise and vibration behavior of vehicles,” SAE Paper 940607, 1994.
18. T. Shibayama, K. Ito, T. Gami, et al., “Active engine mount for large amplitude idling vibrations Technical Paper 951298, 1995.