Wheel hub design considerations pdf

Whats more, well get them to you exactly when you need them even next day if thats what you need. I mean, read these few pointers which highlights some design tradeoffs and considerations involved in the use of hub motors. Sometimes this can be a flat disk motor, other times it is not a disk motor. The vehicle of interest reaches a maximum climb speed when accelerating up the 15 incline and reaches its. The design of an aluminium alloy wheel using three. Patent 593,248 w c smith in 1897 developed another explosive gas expansion motor inside a wheel hub that utilized cams on a track in the hub to transmit power to the wheel. Design and analysis of wheel hub for student formula car 8. The wheel has been loaded with static load cases which represent the. A roller bearing between the axle hub and axle shaft ensures easy rotation of the nondrive wheels. Reach out to learn how we can use our deep knowhow from more than 150 personyears of dedicated hightorque compact emotor design experience to develop and optimize the highest performance and torque dense solutions for your application be it the electromagnetic part, the mechanical design or. Serrated shank bolts are pressed into the spindle or hub and are retained by inter.

Pdf design and optimization of hub and knuckle for formula sae. Using cams, another type of combustion wheel motor. Design and optimization of a formula sae vehicle worcester. The spokes radiate out from the hub and attach to the rim. A hub assembly contains the wheel bearing and hub to mount the wheel to vehicle. If the hub mounting face is positioned closer to the rear wheel rim, the wheel features negative offset. Design parameters of the hub following design parameters of the hub are considered in the present study. Optimization through cadcae is a process to simplify a design to reduce the weight. Lightweight wheels may spin up faster and turn more.

Design and ansys analysis of components of wheel assembly of. The design a is analyzed at its four typical working stages, respectively. Construction with treated lumber in general medium length lumber should be purchased for efficiency and stability 2x4 and 2x6 boards 16 or less and 4x4 posts 10 or less. Design and dynamic analysis of locomotive wheel axle. They are often covered by a hubcap to add some style. The axle hub spins along with the wheels bolted to it and provide the power to the wheels in order to rotate. Development in order to design, analyse, manufacture and test a wheel hub for an all terrain vehicle atv.

Hence, in the present investigation an attempt has been made to analyse the alloy wheel from a solid disc shape to an improved design which improved design. Selection of the dimensions of hub unit bearings requires consideration of their service. For any vehicle, its dynamics and control behaviour is mainly controlled by the design of the wheel assembly. Create 3d model of the existing model of rail wheel axle from the 2d drawings. Hub unit bearings for automobile wheels are comprised of bearing rings, rolling elements, and cages, similar to generalpurpose rolling bearings. An in hub motor design was chosen incorporating plettenberg nova 15 motors for a rear wheel drive rwd configuration. Pdf analysis of wheel hub motor drive application in. The hub is directly connected to the wheel and is connected to the upright. In order that the hub to sit on rim, the pitch circle diameter of the rim had to match with the designed hubs. Wheel assembly, oftenly called hub assembly is the major automotive assembly part of an automotive vehicle.

The cad design of wheel is prepared based on the standard nomenclature at the outer and the hub region of the wheel. Trailer design considerations dual wheels dual wheels cannot be used as singles unless they are used on hubs that have been specifically designed for that application. In this work, an in wheel electric motor prototype has been designed for experimental purposes. Description wheel type nut cover 076188 front hub cover kit includes. The axle is hollow, following the wheel at very close tolerances.

The electric wheel hub motor was raced by ferdinand porsche in 1897 in vienna, austria. Typically, a spindle is pressed into the upright and does not rotate. Formula electric vehicle wheel hub design and optimization. Methodology wheel assembly of formula one car is different than the wheel assembly of passenger vehicle. The blade shape is generated by specifying surface velocity distributions and consists of straightline elements that connect points at hub and shroud. Dec 25, 2015 the materials and design of the grinding wheels play a significant role in this technology. Optimization design and analysis of a flywheel a project for mie 605 by jie wan submitted to professor ian grosse december 22, 1996. On the axle side, it is mounted to the holding bracket from the chassis. Unlike conventional central drive unit systems, torque as well as the power and. Wheels with steel bodies are currently widely used, but have deficiencies such as a large mass loading imposing on the spindle, along with high power consumption, large stress and deformation, and limited practical grinding wheel speed. If the center of the wheels overall width aligns with the hub contact surface, the wheel has zero offset. Key design idea alternator alternative to a dc motor transform the way personal transportation is used globally make personal electric vehicles affordable and accessible to everyone alternator as a lowcost alternative to a dc motor create a motor controller for an alternator as. The in wheel motor hub motor can be used in electric cars with 4 wheel independent drive configuration. Pitch circle diameter of lug bolts on rim since stock maruti rims were chosen to be on the vehicle on all four wheels.

Passenger vehicle car is mainly focus on the performance of vehicle but f1 car is focus on the. Design of fsae wheels is aimed at producing the lightest possible wheel with the lowest. This thesis describes the design of the wheel hub of hybrid hmmwv so as to. However, by overcoming these challenges, the vehicle designer is rewarded with greatly increased freedom in vehicle hull and suspension design and numerous. The vehicle is required to accommodate a 95th percentile model comfortably and safely in the drivers. Total tractive effort is the net horizontal force applied by the drive wheels to the ground. This document explains how to design wheel hubs and other parts for the course. Designing and optimization of wheel assembly of a formula. In the next section, we take a closer look at how to tell the difference between a bad wheel hub and a good wheel hub. The steering and suspension engineer design their geometry, a kinematic representation of various. Wheel bearing in the hub depends on internal and external diameters of stub axle coming out of the hub.

The implementation of inwheel hub drives presents challenges both in their design and to the overall vehicle system. To get high operating performances and reduce cost, the optimization design of the flywheel is realized iteratively on the basis of finite element dynamic analysis. Understanding basic wheel and tire dimensions, terminology. Wheels bolt to the wheel hub and rotate around the axles. A hub dynamometer for measurement of wheel forces in offroad.

Consideration of the energy requirements in the design of a suckerrod pumping system. The large offset of a dual wheel shifts the load line too far from the hub face or intended load line of most hubs. The upright also locates these components in space. Aluminium alloy wheels manufacturing process, materials and. I have read about the brabus all electric 4wd, and now it seems it is in production. The design of a cast aluminium alloy wheel has been optimised using the finite element technique. The objective of this paper is to design an aluminium alloy wheel by meeting all the design standards. The rim is the outer part of the wheel that holds the tyre.

Design and development of the front wheel hub for allterrain. Hub motors are inherently heavier and bulkier than driven wheels. This page provides information about industrial design for various sector like. Trust in our teams to support your emotor project from concept to sop ready product. Gawr part number description offset drum pilot stud standout hubcap bcd abs 10018163 10stud hub. The wheels were designed with the aid of 3d modeling software and finite. The design guide focuses on the manufacturing industry. Friction is necessary to turn the wheels and propel a car forward, and is provided by the tires touching the ground. Figure 1 shows an exploded view of a typical motor hub wheel. The natural frequency of the rear hub with the wheel attached. In either case, the motor is the hub instead of being mounted beside it or near it. Hence it is important to design this part by considering various safety considerations. Vehicle dynamics of the car is analysed to calculate the acting forces.

The wheel transfers power from the axle hub to the tires, providing the leverage needed to move the car. Design and development of a wheel hub and upright require lightweight and sturdy components to m ov e fast 7. Through the use of these wheels, we will reduce the unsprung mass of the car and greatly improve performance. The main types of wheel set design are shown in figure 1. Jul 22, 2014 a design can handle higher loads by installing in hub motors in additional wheels. Besides the many fitment considerations, durability and strength are crucial to staying safe behind the wheel. A single drive motor controls both the rotation of the wheel and the arm used to reconfigure the wheel. V gowtham1, a s ranganathan2, s satish3, s john alexis4, s siva kumar5. If the hub geometry and material selection are inadequate, the hub can break completely or bend so much that the motor can not effectively accomplish its task. Detailed design report on design of upright and hub. International journal of scientific and research publications, volume 4, issue 6, june 2014 2 issn 22503153. The web thickness of the corrugated wheel is approximately 30% less than that of a usual web wheel. Wheel design the design of the aircraft wheel is influenced primarily by its requirement to accommodate the selected tire, to be large enough to house the brake, and to accomplish the above tasks with minimum weight and maximum life.

More specifically, the hub is actually almost as big as the wheel itself. The wheel design selected for manufacturing is compared for factor of safety. The upright or knuckle attaches the wheel, brake rotor, hub, brake caliper and steering arm to the vehicle as shown in diagram ku1 below. One hub cover, 10 hugalugs with clamps and one wrench. Pdf simulation and optimization of wheel hub and upright of. Design considerations of a direct drive brushless machine with concentrated windings. Hub motor ideally, the term hub motor refers to a motor that replaces the hub of a wheel. Design and weight optimization of aluminium alloy wheel. Perceptual matching of shape design style between the wheel hub and car. Convert the 3d model into parasolid5 format and import into ansys to do finite element analysis. Within every wheel, there can be one directdrive in wheel motor to generate the necessary torque per wheel. The wheel diameter was changed by arm which folded in or out to the desired length. The design of the upright or knuckle determines the geometry on the outboard side of the suspension. The hub must be capable of rigidly supporting its share of the robots weight without failure during its expected life span.

Design and development of the front wheel hub for allterrain vehicle atv 53 6. Reconfigurable wheels for planetary surface rovers version iii 16. Deploying device level ring within a converged plantwide ethernet architecture, publication enettd015 provides design recommendations for connecti ng devicelevel topologies to networks comprised of layer 2 switches. Hardware design considerations for an electric bicycle using. A process to evaluate the current wheel hub and decision to re design the wheel hub is performed, and the parts are analysed using the finite element method to verify the design and material selection. Pdf simulation and optimization of wheel hub and upright. It simulates the behaviour of the wheel under its working load conditions. Corrugated wheel is one of the notable wheels when discussing the web design. Ideas master series has been used to develop a three dimensional linear elastic structural model. A front wheel hub is a component whose main purpose is to connect the wheel to other. Hardware design considerations for an electric bicycle. If the design has two drive wheels, the force applied per drive wheel for straight travel is half of the calculated tte.

The motor is attached to an epicyclic gear train that provides a reduction ratio while staying within the limitations of the suspension kinematics. Several design considerations are proposed before the cad modeling of hub. This is done by placing a bearing between the hub and upright. Figure 1 shows the cad design of the wheel rim before optimization a.

The hub is the center of the wheel, and typically houses a bearing, and is where the spokes meet. Product design and development of wheel hub for an all. The design of the interior driver compartment and bodywork allows the driver to quickly and safely exit the vehicle in. Aluminum hubs aluminum hub ff front steer axle,200 lbs. The steering and suspension engineer design their geometry, a kinematic representation of various parts in that system, according to the requirement. Simple and inexpensive, steel wheels are usually basic in design and fitted to lowcost cars. Well give you a friendly, efficient and knowledgeable service and we always make sure you get the right wheels, fittings and accessories for the job. The first step while designing the wheel assembly is to find out the required parameters in order to design the wheel assembly from the steering and the suspension geometry. Structural design of a carbon fiberreinforced polymer wheel. Cover secured by screwing 001881 onto inner clamp placed on hex nut.

Aug 08, 20 the blade design method described here satisfies the first two criteria and with a judicious choice of certain variables will also satisfy stress considerations. Wheel assemblies used in automobiles consist of hub, knuckle, bearings and wheel usually integrated as unibody or part components. Automobile wheel attachment design considerations jstor. They are not perfect solutions to every drive problem, and some of the shortcomings are dictated by the laws of physics.

Frictionbased shaft this type of electric drive installs the motor very close to one. How rims work and why they matter yourmechanic advice. Fatigue based design and analysis of wheel hub for student formula car by simulation approach. Perform design calculations of rail wheel axle model. A hubless wheel also known as a rimrider or centerless wheel is a type of wheel with no center hub. Installation procedure and wheel bearing adjustment procedure. Journal of mechanical engineering vol 171, 4962, 2020. It also cove rs the implementation of embedded switch. The designer may choose longer boards for a particular design in order to optimize the design. If wheel packing allows variation in hub thickness, it is foreseen that. The steel wheel was strong, mass produced, economical and represented a giant leap. The wheel get together was coincided with tetrahedral components, and the crosssection are refined close to the anxiety concentrated ranges. The shocks will be set to provide the proper dampening and spring coefficients to provide a smooth and well performing ride. Designed for hub piloted wheels available in front and rear applications part no.

Selection of the dimensions of hub unit bearings requires consideration of t. Optimization of the design is performed by using computer. Pdf designing and optimization of wheel asembly including hub and knuckle for. The upright is to remain stationary relative to the chassis while the hub is to rotate with the wheel. Mechanical power transmission hub design hubs are used to transmit mechanical power from a drive motor by coupling it to an output device such as a wheel or an arm.