Simplified fatigue durability assessment for rear suspension structure

This paper focuses on the synthesis of an independent suspension that can guide the wheel to track a straight line when moving up (jounce) and down (rebound). With displacement subgroups, it first synthesizes a rigid body guidance mechanism and verifies the result through screw theory. To simplify and optimize the loads of each kinematic chain of the knuckle, it investigates the static equations and ultimately synthesizes a symmetric redundant-constraint suspension structure, which could not only eliminate the shambling shocks induced by the jumping of wheels but also decrease the abrasion of tires. Theoretically, only one pair of noncoplanar kinematic chains is necessary to realize straight line guidance. However, a second pair of noncoplanar kinematic chains is particularly utilized to improve the load status of the links. Because of the redundant constraints induced by the suspension structures, the whole weight can be significantly reduced compared with the initial one. ADAMS simulations with a set of real parameters indicate that the rear suspension mechanism proposed in this paper can guide the wheel to follow a rectilinear locus during jounce and rebound. Therefore, this kind of independent suspension can improve the ride and handling properties of advanced vehicles.

Download Full-text

Stress Analysis of the Automobile's Coil Spring Including Residual Stresses by Shot Peening

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.306-308.459 ◽

2006 ◽

Vol 306-308 ◽

pp. 459-464 ◽

Cited By ~ 1

Author(s):

Dong Ho Bae ◽

Gyu Young Lee ◽

Won Seok Jung

Keyword(s):

Residual Stresses ◽

Stress Analysis ◽

Shot Peening ◽

Design Criterion ◽

Coil Spring ◽

Fatigue Design ◽

Fatigue Durability ◽

Durability Assessment ◽

Fatigue Design Criterion ◽

Corrosive Environments

Durability assessment for the suspension system of the vehicle is very important. In order to secure reliability on the results of durability assessment and fatigue design criterion, accurate stresses for the interesting component must be basically calculated. In this paper, numerical stress analyses for the automobile’s coil spring were performed. Residual stresses by shot peening were also analyzed. The effects of the stress analysis results on fatigue strength of the coil spring were discussed. From the results, fatigue durability of the shot peened coil spring could be considerably improved by the effects of compressive residual stress. However, being attacked by corrosive environments, it could decrease by corrosion fatigue degradation.

Download Full-text

Fatigue durability assessment of automotive adhesive joints by an in situ corrosion fatigue test

Journal of Adhesion Science and Technology ◽

10.1080/01694243.2016.1156381 ◽

2016 ◽

Vol 30 (15) ◽

pp. 1610-1621 ◽

Cited By ~ 2

Author(s):

Qiuren Chen ◽

Haiding Guo ◽

David John Hill ◽

Xuming Su

Keyword(s):

Fatigue Test ◽

Corrosion Fatigue ◽

Adhesive Joints ◽

Fatigue Durability ◽

Durability Assessment

Download Full-text

FAILURE ANALYSIS OF A COIL SPRING APPLIED IN THE REAR SUSPENSION OF A CITY VEHICLE

10.26678/abcm.cobem2019.cob2019-0325 ◽

2019 ◽

Author(s):

Gilmar Cordeiro da Silva ◽

Marcio Martins ◽

Caio Silva ◽

Felipe Bergh ◽

Pedro Henrique Paiva ◽

...

Keyword(s):

Failure Analysis ◽

Coil Spring ◽

Rear Suspension

Download Full-text

Device for determination of the fatigue durability of intravascular stents

Industrial laboratory Diagnostics of materials ◽

10.26896/1028-6861-2019-85-11-62-68 ◽

2019 ◽

Vol 85 (11) ◽

pp. 62-68

Author(s):

O. A. Kashin ◽

K. V. Krukovskii ◽

D. I. Bobrov ◽

A. I. Lotkov

Keyword(s):

Fatigue Durability ◽

Intravascular Stents

Download Full-text

CARPENTER TOURALLOY 230 PLUS

Alloy Digest ◽

10.31399/asm.ad.ss1084 ◽

2011 ◽

Vol 60 (2) ◽

Keyword(s):

Fracture Toughness ◽

Corrosion Resistance ◽

Physical Properties ◽

Tensile Properties ◽

High Strength ◽

Heat Treating ◽

Cycle Fatigue ◽

Fatigue Durability ◽

Face Plate

Abstract Carpenter Touralloy 230 Plus stainless was originally developed for high-strength aerospace components, however, it may provide improved bar cycle fatigue durability, compared to other traditional golf face plate alloys. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: SS-1084. Producer or source: Carpenter Specialty Alloys.

Download Full-text