Thermo-mechanical fatigue of SiMo 4.06 turbocharger turbine housing: Damage operator approach

Bartošák, Michal; Španiel, Miroslav; Doubrava, Karel

doi:10.1016/j.engfailanal.2019.06.068

Cited by 20 publications

(6 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Dengan air yang jatuh pada ketinggian penuh, casing turbin dapat dibuat dari besi, lembaran logam atau bahan lainnya tergantung pada kemampuan pembuangan airnya [82].…”

Section: Rumah Turbin (House Casing)unclassified

Kajian Teknis Dan Manfaat Keekonomian Pada Pembangkit Listrik Tenaga Mikro Hidro

Anggayudha¹,

Hakim²

2023

Preprint

View full text Add to dashboard Cite

Kebutuhan Listrik di Indonesia, semakin lama semakin meningkat disamping meningkatnya jumlah penduduk. Namun semakin menipis pula cadangan energi non-terbarukan, membuat kita untuk membuat energi terbarukan lainnya. Mikro Hidro salah satunya, menghasilkan energi listrik dari aliran air atau gerak jatuh potensial dari air terjun, yang diubah oleh generator. Proses perubahan ini terjadi dari energi gerak mekanik diubah oleh generator menjadi energi listrik. Tentu karena ini menggunakan energi dari alam, selagi masih ada aliran air atau gerak jatuh potensial dari air terjun, Pembangkit Listrik Tenaga Mikro Hidro ini bisa digunakan, sekalipun dalam jangka yang panjang. Di Indonesia, potensi Pembangkit Listrik Tenaga Mikro Hidro sendiri mencapai 770 Mega Watt. Tentu potensi-potensi seperti ini harus dibanyak dikembangkan, terutama desa yang tidak dapat aliran listrik dari PLN. Apabila proyek ini dijalankan, terdapat nilai bisnis yang bagus, serta kebermanfaatan ekonomi juga akan dirasakan masyarakat sendiri. Jadi, Pembangkit Listrik Tenaga Mikro Hidro, ini adalah salah satu sumber energi alternatif yang bisa membantu kebutuhan listrik di Indonesia. Potensi-potensi itu perlu dibangun serta dikembangkan dalam pengembangannya, agar jumlah Pembangkit Listrik Tenaga Mikro Hidro di Indonesa semakin banyak.

show abstract

“…Dengan air yang jatuh pada ketinggian penuh, casing turbin dapat dibuat dari besi, lembaran logam atau bahan lainnya tergantung pada kemampuan pembuangan airnya [82].…”

Section: Rumah Turbin (House Casing)unclassified

Kajian Teknis Dan Manfaat Keekonomian Pada Pembangkit Listrik Tenaga Mikro Hidro

Anggayudha¹,

Hakim²

2023

Preprint

View full text Add to dashboard Cite

show abstract

“…Throughout its service life, the exhaust manifold is expected to endure severe repeated thermal cycles under harsh operating conditions, including start-up, stop, and full load phases of the internal combustion engine. [4][5][6][7][8] Especially, with the continuous development of modern internal combustion engines in the direction of high performance and high power density, the thermal load on the exhaust manifold also increases, and it is unreasonable to only consider the mechanical load. 9 Thus, it is extremely difficult to reasonably calculate the fatigue life of the exhaust manifold under complex conditions before computers became popular.…”

Section: Introductionmentioning

confidence: 99%

Marine diesel exhaust manifold failure and life prediction under high-temperature vibration

Cui

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part C:

View full text Add to dashboard Cite

The working environment of the diesel exhaust manifold is harsh. On one hand, exhaust gas with high temperature continues to flush on the inner wall of the manifold, and on the other hand, the manifold is also affected by some complex factors, such as diesel engine vibration. If the design is unreasonable, air leakage, cracking, and other failure phenomena are easy to appear. In this article, aiming at the aforementioned problems in the exhaust manifold design process, a high-speed diesel exhaust manifold is taken as an example and analyzed by computational fluid dynamics and finite element method technology. The temperature field distribution of the exhaust manifold is simulated by the fluid–structure interaction method, and then the thermal stress distribution is simulated based on the temperature field of the exhaust manifold. According to the thermal stress of the exhaust manifold and the vibration stress in three directions (axial, transverse, and vertical), combined with the time domain acceleration signals, the high-cycle fatigue life of the exhaust manifold is obtained. The exhaust manifold structure is optimized based on the minimum high-cycle fatigue life position. Then, the high-cycle fatigue life analysis of the optimized structure shows that the optimized structure can significantly improve the life of the exhaust manifold. Then, the optimized structure is further analyzed for low-cycle fatigue life to check whether it meets the requirements of low-cycle fatigue life. After simulation, it can be known that the low-cycle fatigue life meets the design requirements. Finally, sensitivity analysis of the fatigue life under different loading conditions (thermal load and vibration intensity) shows that the thermal load has a significant influence on the fatigue life, so the thermal load should be paid attention to in the design process.

show abstract

“…Recently, improved energy dissipation damage models have been proposed and considered, such as the Ostergren energy model 24 and the statistical probabilistic damage model. 25 Due to the influence of cyclically varying temperature and mean stress on TMF damage, Bartošák et al 26 proposed a damage operator approach considering the critical plane model and carried out continuous damage calculations. It is worth noting that these energy-based damage models assume that the damage between isothermal strain cycles is stable, and the uniaxial isothermal material test determines the fatigue lifetime.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical studies of thermal-structural behavior based on cast iron scaled cylinder head specimen

Zhang

Liang

Qiao

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part C:

View full text Add to dashboard Cite

In order to clarify the thermal deformation and failure mechanism of the nodular cast iron cylinder head of marine diesel engines during long-term service, a high-efficiency thermal cycling experiment was conducted on scaled cylinder head specimen based on the similarity principle, and the thermal cycling load was simulated by flame heating and water spray cooling method. Then the Chaboche combined hardening model considering temperature and cumulative effect was established. The cyclic plastic behavior of the scaled specimen model during non-uniform thermal cycling was verified from transient temperature, cumulative out-of-round deformation and crack failure. Subsequently, the law of cyclic plastic deformation of specimens under thermal cycling was studied. The results showed that with the increase of the cycle number, the plastic strain of the valve bridge region of the scaled specimens accumulated gradually, showing a large amount of permanent strain of the circular hole within a maximum of 20.3 μm out-of-round deformation. The difference between the calculated and tested deformation is 1.9 μm (10.5%), which shows the excellent predictability of the numerical model. The research findings are valuable for predicting and evaluating the thermal-structural behavior of the prototype cylinder head.

show abstract

Thermo-mechanical fatigue of SiMo 4.06 turbocharger turbine housing: Damage operator approach

Cited by 20 publications

References 19 publications

Kajian Teknis Dan Manfaat Keekonomian Pada Pembangkit Listrik Tenaga Mikro Hidro

Kajian Teknis Dan Manfaat Keekonomian Pada Pembangkit Listrik Tenaga Mikro Hidro

Marine diesel exhaust manifold failure and life prediction under high-temperature vibration

Experimental and numerical studies of thermal-structural behavior based on cast iron scaled cylinder head specimen

Contact Info

Product

Resources

About