Structural And Modal Analysis Of A Ladder Frame Chassis-PDF Free Download

STRUCTURAL AND MODAL ANALYSIS OF A LADDER FRAME CHASSIS
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VOL 11 NO 23 DECEMBER2016 ISSN 1819 6608,ARPN Journal of Engineering and Applied Sciences. 2006 2016 Asian Research Publishing Network ARPN All rights reserved. www arpnjournals com,Figure 3 C section,Figure 1 Deformation of beam. The above Fig shows the deformed shape of the,beam The deflection obtained by FEM is4 3 mm. Deflection obtained by Analytical method,Error 4 3 4 1 4 1 x 100 4 87. As error is within acceptable limit so we can, conclude that mesh density and type of element selected.
are capable of giving correct results for whole chassis. FEM ANALYSIS OF MODEL, Chassis is modelled using SOLIDWORKS which Figure 4 I section. is shown in the figure given below,Figure 2 Chassis CAD model. Figure 5 Rectangular hollow section,Different Cross members are modelled keeping. weight as a constant parameter in the solid works Modal and Structural analysis is done using. ANSYS Workbench by importing CAD model from the,SOLID WORKS Tetrahedral meshing is done on the. geometry Body Sizing is also given to refine the mesh. Named selection is given to the different chassis,component Then different boundary conditions are.
applied on the geometry in order to get deformation. equivalent stress natural frequency and mode shapes. VOL 11 NO 23 DECEMBER2016 ISSN 1819 6608,ARPN Journal of Engineering and Applied Sciences. 2006 2016 Asian Research Publishing Network ARPN All rights reserved. www arpnjournals com,RESULTS 2 Maximum deformation. All the Cross member are analysed using,ANSYS Workbench for von mises stress maximum. deformation mode shapes and natural frequency The,results obtained are shown as below. 1 Von Mises stress,Equivalent stress Von mises obtained for all the.
three chassis with different cross member by applying the. loading conditions are given as,Figure 9 C Section deformation. Figure 6 C Sec von mises stress,Figure 10 I Section deformation. Figure 7 I Sec von mises stress,Figure 11 Rectangular Section deformation. Table 1 Deformation and von mises stress,Cross Deformation Von mises. section mm stress MPa,1 C Type 5 465 233 07,2 I Type 5 467 226 4.
Rectangular,Box Hollow 5 440 247 5,Figure 8 Rectangular section von mises stress. VOL 11 NO 23 DECEMBER2016 ISSN 1819 6608,ARPN Journal of Engineering and Applied Sciences. 2006 2016 Asian Research Publishing Network ARPN All rights reserved. www arpnjournals com,From above table it is clear that minimum stress. is generated in case of I section and maximum in case of. rectangular hollow section This is because the thickness. of rectangular section has been decreased to keep the. weight constant However if thickness is kept constant. and weight increased than rectangular section outperforms. the other two types of cross sections,The permissible deflection span ratio is 1 300. For the chassis taken for analysis with total span. 10100mm maximum deflection can be 33 67mm Thus, the deflection is within the permissible limits and almost.
same for all the three cross sections considered for. 3 RESULTS FOR MODEL ANALYSIS Figure 14 I section 3rd mode shape. All the three chassis with different cross members. are analysed for free vibration case to determine the. natural frequency deformation and mode shape Some,results obtained are shown below. Figure 15 I section 4th mode shape,Figure 12 I section 1stmode shape. Figure 16 I section 5th mode shape,Table 2 Natural frequencies. Figure 13 I section 2st mode shape S Cross Natural frequencies Hz. No section 1 2 3 4,1 C Type 17 51 26 52 27 3 35 5,2 I Type 17 08 26 3 26 35 2. 3 17 71 26 6 27 6 38 96,HollowType,VOL 11 NO 23 DECEMBER2016 ISSN 1819 6608.
ARPN Journal of Engineering and Applied Sciences, 2006 2016 Asian Research Publishing Network ARPN All rights reserved. www arpnjournals com, Table 3 Deformation for natural frequency Vijaykumar V Patel and R I Patel 2012 Structural. analysis of a ladder chassis frame World Journal of. Deformation for natural Science and Technology ISSN 2231 2587. S Cross Frequency mm,No section, 1 2 3 4 Monika S Agrawal Md Razik Finite Element Analysis. 1 C Type 3 83 4 82 3 35 5 95 of Truck Chassis IJESRT ISSN 2277 9655. 2 I Type 3 80 4 81 3 35 5 91,Rectangular,3 Box Hollow 3 82 4 8 3 36 5 82. CONCLUSIONS,From the static structural and modal analysis.
done on the Ashok Leyland Viking ladder chassis it can be. concluded that for constant weight chassis with I section. has highest strength as minimum stress is generated in it. and rectangular section is better for torsional stiffness as. deflection is minimum for it The fundamental natural. frequency of the original chassis is 17 51Hz Also, fundamental natural frequency and mode shapes of chassis. with different cross members are almost same which. means changing the cross section of cross members, doesn t have any significant effect on natural frequencies. and mode shapes Thus the strength can be improved by. using I section instead of C section for cross members of. the chassis used for analysis,REFERENCES,Kurisetty Sukumar and Gupta Parametric Study of. Ladder Frame Chassis Stiffness SAE Technical Paper. 2016 01 1328, Chuaymung Benyajati Olarnrithinun S 2015 Structural. Strength Simulations of Ladder Frame Chassis for Light. Agriculture Truck SAE Technical Paper 2015 01 0090. N Sivanagaraju M V H Sathish Kumar U koteswarao, ModelingAnd Analysis of an Innova Car Chassis Frame.
by Varying CrossSection IJERT 2278 0181, Abhishek Singh Vishal Soni Aditya Singh Structural. Analysis of Ladder Chassis for Higher Strength IJERT e. ISSN 2250 2459,Kamlesh Y Patil Eknath R Deore Stress Analysis of. Ladder Chassis with Various Cross Sections IOSR JMCE. e ISSN 2278 1684,Hemant B Patil Sharad D Kachave Eknath R Deore. Stress Analysis of Automotive Chassis with Various. Thicknesses IOSR JMCE e ISSN 2278 1684,K Rajasekar Dr R Saravanan Literature Review on. Chassis Design of On Road Heavy Vehicles IJISET e,ISSN 2348 79.


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