Design of a double wishbone front suspension for an orchard–vineyard tractor: Kinematic analysis

Uberti, Stefano; Gadola, Marco; Chindamo, Daniel; Romano, Matteo Carmelo; Galli, Francesco

doi:10.1016/j.jterra.2014.11.001

Cited by 19 publications

(12 citation statements)

References 6 publications

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“…5 Comfort evaluations can also be performed allowing physicians and engineers to better understand musculoskeletal and/or physiological issues occurring on people driving commercial vehicles, trucks and agricultural vehicles, 3,[6][7][8] while some studies [9][10][11] show that a four poster can perform the same evaluations on motorcycles by means of a purposely designed fixture. Studies 9,12,13 also state that the four-poster rig has become a reference in the field of motorcycle testing.…”

Section: Introductionmentioning

confidence: 99%

Reproduction of real-world road profiles on a four-poster rig for indoor vehicle chassis and suspension durability testing

Chindamo

Gadola

Marchesin

2017

Advances in Mechanical Engineering

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Indoor testing should reproduce the real-world environment in order to be effective. In this article, an efficient methodology to reproduce road profiles on a four-poster rig is presented: such a method includes a complex rig control strategy based on an iterative process. Road profiles come from a purposely designed set of sensors fitted on the car which remains the same regardless of the vehicle or surface type. Particular stresses such as speed humps, potholes and manholes can be reproduced as well. Since there are no previous similar studies, a validation is provided by comparing road and rig data streams and using the maximum absolute error and root mean square error as performance indexes. Results show that the rig is able to reproduce road profiles and the related inputs to the vehicle successfully; hence, the method is reliable and effective.

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Section: Introductionmentioning

confidence: 99%

Reproduction of real-world road profiles on a four-poster rig for indoor vehicle chassis and suspension durability testing

Chindamo

Gadola

Marchesin

2017

Advances in Mechanical Engineering

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“…This consists of driving along a predefined path that reflects different public road conditions (e.g., highway, urban, hill). However, vehicle road tests are very time consuming, expensive, generally difficult to reproduce, and are usually impossible to carry out in the early development stages [13][14][15][16]. A widely employed option for accelerating the process of durability analysis is indoor testing trough test rigs that have been designed for this purpose.…”

Section: Introductionmentioning

confidence: 99%

Correlation between Numerical and Experimental Structural Resistance of a Safety Relevant Aluminum Automotive Component

Cecchel

Ferrario²,

Mega³

et al. 2019

Metals

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Accurate implementation of weight reduction for the development of innovative safety-relevant components, such as suspension assemblies, requires a careful evaluation of the structural resistance. The validation of these critical parts usually employs Finite Element Analysis (FEA) during the design phase and laboratory tests on prototypes during later stages. However, the results of these established methods have rarely been numerically compared. The present paper introduces a method for comparing FEA and testing, based on the elaboration of micro-strains acquired with strain gauges positioned in specific regions. The model was applied to the real case study of an innovative lightweight cross beam. FEA simulations and bench tests under different conditions that were representative of the operating environments were carried out. Two different relevant configurations of fatigue bench tests were considered. Then, the data obtained from testing were numerically elaborated in order to compare them with the analytical results. Real data from in-field measurements were used. The cross beam endured at the elevate mission loads reproduced at the bench test. The FEA and testing results were aligned. The correlation method was proven to be reliable, since it made it possible not only to numerically evaluate the testing output, but also to validate the calculation tools, and it could be extended to similar applications in future.

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“…Activities like NVH testing, comfort evaluation [4][5][6], and the search for natural frequencies and vibration modes can be carried out as well. Automotive engineers consider the four-poster a key device in developing their product and the same considerations can be made for the motorcycle industry [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Design of a Road Simulator for Motorcycle Applications

Chindamo¹,

Gadola

Armellin

et al. 2017

Applied Sciences

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Four-wheeled vehicles are often tested on indoor, four-poster road simulator rigs. Road loads are simulated with the use of servo-hydraulic systems for suspension set-up optimisation, NVH analysis, and fatigue life cycles. The use of a road simulator is not such a common practice for two-wheeled vehicles despite problems to be faced being extremely similar. The paper presents a device for testing motorcycles on a Servotest ® four-poster. A dedicated restraint system had to be devised in order to support the motorcycle without altering its inertial characteristics. Additional pneumatic actuators with a purposely developed instrumentation have been designed to reproduce braking and power thrusts.

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Design of a double wishbone front suspension for an orchard–vineyard tractor: Kinematic analysis

Cited by 19 publications

References 6 publications

Reproduction of real-world road profiles on a four-poster rig for indoor vehicle chassis and suspension durability testing

Reproduction of real-world road profiles on a four-poster rig for indoor vehicle chassis and suspension durability testing

Correlation between Numerical and Experimental Structural Resistance of a Safety Relevant Aluminum Automotive Component

Design of a Road Simulator for Motorcycle Applications

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