Topological and Topographical Optimization of Automotive Spring Lower Seat

Kong, Y. S.; Abdullah, Shahrum; Omar, Mohd Zaidi; Haris, Sallehuddin Mohamed

doi:10.1590/1679-78252082

Cited by 14 publications

(7 citation statements)

References 28 publications

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“…Tavan et al (2015) proposed an optimal controller for integrated longitudinal and lateral closed loop vehicle dynamics to follow desired path in various driving maneuvers (Tavan, Tavan, & Hosseini, 2015). The design of a suspension system emphasizes weight reduction (Kong, Abdullah, Omar, & Haris, 2016) Active and semi-active suspension systems are kinds of automotive suspension mechanisms that control cyclic vertical movement of the car in a broad frequency range and energy waste through real-time feedback. Every moment the tires go up and down separately depending on the conditions of the road until the car's occupants will have the maximum comfort (Solmaz, Shorten, Wulff, & Cairbre, 2008).…”

Section: Introductionmentioning

confidence: 99%

Rollover Index for the Diagnosis of Tripped and Untripped Rollovers

Kazemian

Fooladi

Darijani

2017

Lat. Am. j. solids struct.

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It is necessary to detect danger as soon as possible to avoid rollover of a vehicle in sudden events. Using rollover index in real time can be used for this purpose. The traditional rollover indices currently applying in the vehicles can only detect the untripped rollover due to severe lateral acceleration in vehicles. These indices cannot detect the tripped rollover resulted from vertical external forces in a long direction. There are recently many quantitative studies about the tripped rollover and an index was also introduced to this kind of rollover. In this research, we examined the dynamics of a SUV to improve this index and also presented a new index to detect the both types of rollovers. The precision and accuracy of the new index was evaluated by simulation in industrial software of Carsim. The numerical results of the new developed model were compared with the test results of an automobile at one-eighth scale in equal conditions and inputs. The results are indicative of the better performance of the new model presented in this research. KeywordsVehicle dynamics, Tripped rollover, Untripped rollover, Rollover index, Suspension system Rollover Index for the Diagnosis of Tripped and Untripped Rollovers

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Section: Introductionmentioning

confidence: 99%

Rollover Index for the Diagnosis of Tripped and Untripped Rollovers

Kazemian

Fooladi

Darijani

2017

Lat. Am. j. solids struct.

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“…Y.S. Kong et al [9] to perform the Topology and topography structure optimization for the spring bottom seat is performed to reduce the weight of a passenger car spring bottom seat design under stress and structure compliance constraints. The topology optimization performed to identify the parameters like density of the elements, whereas topography optimization is used to strengthen the structure of the lower seat by applying bead parameters in a model.…”

Section: Literature Surveymentioning

confidence: 99%

“…Topology optimization need to find out non design area of component where load is not acting & stresses are very less from where we can remove the material in such manner that manufacturing feasibility is also considered. [9] B. Shape optimization is part of the field of optimal control theory.…”

Section: Outcome From Review Papersmentioning

confidence: 99%

Shape optimization of striker cap of automotive shock absorber

Talele¹,

Arakerimath²

2017

IJME

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While driving the vehicle safety is very important. It is depended on the suspension of vehicle and breaking and other systems in vehicle .Comfort is very important for the driver and also the passengers and that comfort is dependent on the suspension system of the vehicle. Shock absorber plays most important role in suspension system which is connected to the wheels of vehicle. Shock absorber reduces the effect of impulse and road irregularity experienced while driving. Shock absorber of car used a striker cap. Automotive shock absorber have actively working cylinder of inner and outer cylinder. Striker cap is mounted on the outer cylinder. Cap is of U shaped which is forming the ring on outer cylinder. When that cap is fitted on damper pressure applied on top surface of cap and sometimes that cap is failed. So for meeting the current demand and minimizing the failure of cap we must have design the cap by changing some design parameters. Design of striker cap is prepared in CATIA V5 and CAE is done in ANSYS.

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“…Shin, et al [6] applied compliance TO in the first place, followed by a size/shape optimization, while Li, et al [7] utilized the benefits from the BESO. Kong, et al [8] optimized a spring lower seat from a suspension system by using a topology and topography optimization approach. Li and Kim [9] conducted multi-material compliance TO with SIMP as an interpolation method of an engine cradle and a cross-member of a chassis frame.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Brake Calipers Using Topology Optimization for Additive Manufacturing

2021

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The weight optimization of a structure can be conducted by using fewer and downsized components, applying lighter materials in production, and removing unwanted material. Topology optimization (TO) is one of the most implemented material removal processes. In addition, when it is oriented towards additive manufacturing (AM), it increases design flexibility. The traditional optimization approach is the compliance optimization, where the material layout of a structure is optimized by minimizing its overall compliance. However, TO, in its current state of the art, is mainly used for design inspiration and not for manufacturing due to design complexities and lack of accuracy of its design solutions. The authors, in this research paper, explore the benefits and the limitations of the TO using as a case study the housings of a front and a rear brake caliper. The calipers were optimized for weight reduction by implementing the aforementioned optimization procedure. Their housings were topologically optimized, partially redesigned, prepared for 3D printing, validated, and 3D printed in titanium using selective laser melting (SLM). The weight of the optimized calipers reduced by 41.6% compared to commercial calipers. Designers interested in either TO or in automotive engineering can exploit the findings in this paper.

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Topological and Topographical Optimization of Automotive Spring Lower Seat

Cited by 14 publications

References 28 publications

Rollover Index for the Diagnosis of Tripped and Untripped Rollovers

Rollover Index for the Diagnosis of Tripped and Untripped Rollovers

Shape optimization of striker cap of automotive shock absorber

Optimization of Brake Calipers Using Topology Optimization for Additive Manufacturing

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