Experimental and Numerical Investigation of SUP12 Steel Coil Spring

Abidin, Mohd Izaham Zainal; Mahmud, Jamaluddin; Latif, Mohd Juzaila Abd; Jumahat, Aidah

doi:10.1016/j.proeng.2013.12.176

Cited by 9 publications

(2 citation statements)

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“…Luas permukaan bagian dalam pegas ulir lebih kecil dibandingkan luar sehingga titik kritis terjadi di bagian dalam. Hal ini mirip seperti hasil penelitian Weiguo et al [31], Abidin et al [32] dan Zhu et al [33]. Konsentrasi tegangan yang terjadi pada lower suspension arm berdasarkan analisa statis tersedia dalam beberapa kontur warna seperti yang ditunjukkan Gambar 9.…”

Section: Distribusi Teganganunclassified

Prediksi Usia Kelelahan Pegas Ulir dan Lower Suspension Arm Berdasarkan Pendekatan Strain Life Berdasarkan Bentuk Permukaan Jalan

Ajinar¹,

Azhari

2022

jes

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This study aims to determine the effect of road surface contours on fatigue life of coil springs and lower suspension arm. In this study, strain gauge was affixed to the critical point of the minibus front suspension coil springs based on stress distribution. Strain signal obtained was analyzed using the Coffin-Manson, Morrow, and SWT approaches. From the results of the chemical composition test, it was found that the coil springs were made of SAE 5160 and lower suspension arm made of AISI 1513. From the results of this study it can be concluded that when the vehicle drive on the damaged road, coil spring and lower suspension arm received greater stress so that provide shorter fatigue life. Fatigue life of coil spring on rough roads is 16% lower than city roads and 7% lower than flat roads. Whereas fatigue life of lower suspension arm on rough roads is 27% lower than city roads and 0.03% lower than flat roads. So that the coil spring components fail faster than the lower suspension arm. This is because the contour of the road surface provides a vertical load so that it is in accordance with the function of the coil spring which works to reduce the load vertically while the lower suspension arm function holds the load when turning.

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Section: Distribusi Teganganunclassified

Prediksi Usia Kelelahan Pegas Ulir dan Lower Suspension Arm Berdasarkan Pendekatan Strain Life Berdasarkan Bentuk Permukaan Jalan

Ajinar¹,

Azhari

2022

jes

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“…Fig. 2 shows a model of coil spring used in suspension system [14], where D=spring coil mean diameter (mm), Do=spring coil's outside diameter (mm), Di= spring coil's inside diameter (mm), d=spring wire's diameter, N= active coils number, N_t=number of total coil, G=modulus of rigidity of the spring materials, F=spring's axial load, C=spring index, P=pitch (mm), L= spring's free length (mm), K= Wahl factor, k=spring stiffness. shows the specifications of the designed and fabricated springs.…”

Section: Designmentioning

confidence: 99%

Numerical and Experimental Study on Optimization of Coil Springs used in Vehicles’ Suspension System

Rahman

Abdullah

2021

J. eng. adv.

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In general, the suspension systems are used to absorb vibrations, bump, rolls, dip from shock loads due to road surface irregularities. It performs its major role without affecting the vehicles’ stability and overall handling during operation. Coil springs are used as suspension element in light vehicles to attenuate unwanted vibrations. A spring is an elastic object used to store mechanical energy and it can be twisted, pulled or extended by some force and can return to its initial position when the force is released. In this study, mild steel material was taken into consideration in designing and fabricating coil springs. Theoretical and experimental investigations were conducted to calculate springs’ stiffness and to make validation between them. Three model of springs having coils 10, 11, 14 respectively are designed which have slight stiffness difference both theoretically and experimentally. The models were analyzed to determine mechanical behaviors for randomly chosen loading conditions ranging from 29.4 N to 176.4 N which are better suited with spring size. It is noted from both numerical and experimental investigations that deflection is high when the stiffness is less and vice-versa. In addition, shear stress formation increases with the increment of stiffness and applied load. Hence, springs having high stiffness are used in suspension system to reduce vibration and other disturbances. This study shows springs of having high stiffness are comparatively compact in size and cost economic as well.

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Finite Element Analysis of Rail Vehicle Suspension Spring for Its Fatigue Life Improvement

Kumbhalkar¹,

Bhope²,

Vanalkar³

2018

Advanced Manufacturing and Materials Science

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Experimental and Numerical Investigation of SUP12 Steel Coil Spring

Cited by 9 publications

References 0 publications

Prediksi Usia Kelelahan Pegas Ulir dan Lower Suspension Arm Berdasarkan Pendekatan Strain Life Berdasarkan Bentuk Permukaan Jalan

Prediksi Usia Kelelahan Pegas Ulir dan Lower Suspension Arm Berdasarkan Pendekatan Strain Life Berdasarkan Bentuk Permukaan Jalan

Numerical and Experimental Study on Optimization of Coil Springs used in Vehicles’ Suspension System

Finite Element Analysis of Rail Vehicle Suspension Spring for Its Fatigue Life Improvement

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