The bogiesuspension apparatus comprises a a bogie assembly having a bogie mount, at least one rotatable groundengaging bogie wheel thereon, and forward and rearward bogiemount connections. Introduction handbook of fiat bogie 1 fq,v cksxh fiat bogie 1. Bogie designs today, very different bogie design principles are applied. Amaryl lids to download pdf you need some things, like my website and the name of the file. Design and implementation of a rocker bogie suspension for a mining robot wesley b. The icf bogie consists of two types of suspension in each bogie, a primary suspension and.
Fatigue strength and lightweight are kernel objects in frame structure design. The job of a car suspension is to maximize the friction between the tires and the road surface, to provide steering stability with good handling and to ensure the comfort of the passengers. Secondary suspension fiat bogie consists of nested flexicoil steel spring. In order to mimic the suspension capabilities of the rovers sent to mars by nasa, our rover will incorporate the same rocker bogie suspension system utilized by the mars rovers to traverse an extreme desertlike terrain. Schaus university of north carolina at charlottegeorgia institute of technology abstract as their capstone senior design experience, students from the william states lee college of. The term rocker comes from the rocking aspect of the links on each side of the suspension system. The wheel assembly attaches the wheels to the motors and mounts the motors to the rest of the rocker bogie suspension system that makes up the robot chassis. The fiat bogie is twoaxle type, with a primary and a secondary suspension. The bolster, the main crossmember, connected to the bogie frame through the secondary suspension. Trailer bogie suspension, truck trailer, semitrailer, trailer standard bogie, steel. Suspension 79 model year front suspension rear suspension left right left right bogie suspension springs boaski inc bogie models 6876 9353031 chaparral industries bogie models 7073 9353041 motoski all bogie models heavy. When the mars exploration rover mer project was first proposed, the use of a rocker bogie suspension was the obvious choice due to its extensive heritage. The rockers are connected to the main body with a differential so that the pitch angle of the body is the average of the pitch angles of the rockers.
Rocker bogie suspension with frc components 3d cad model. One bogie contain three axle, 6 wheel, 3 traction motors, suspension arrangement. Bogies and suspension at present, following four types of bogies are in service. The design allows all 6 wheels to be in contact with the ground as much as possible, increasing traction. It has been used in the 2003 mars exploration rover mission robots spirit and opportunity, on the 2012 mars science laboratory msl missions rover curiosity, and is slated for use in the mars 2020 rover. How to make a mars rover rocker bogie robot stair climbing duration. Comparison studies on box type and tube type bogie frames is. Bogie definition, on a truck a rearwheel assembly composed of four wheels on two axles, either or both driving axles, so mounted as to support the rear of the truck body jointly. Estimation of bogie performance criteria through onboard condition monitoring parham shahidi1, dan maraini1, brad hopkins1, and andrew seidel1 1amsted rail company, inc. To guarantee that basic proportions were kept, servocitys bogie runt rover 4 was used as a model. Kos island is just the first from a series of childrens books dedicated to the amazing greek islands we all know. This suspension system will help the vehicle to move into the fire hazard zone crossing over the obstructions in the quicker way.
Investigations into impacts of bogie secondary suspension system anomalies on wheel wear propagation 1200 1225 kanamori, s. Lets have a look at some of its remarkable qualities. To start with, a general design for the rocker bogie suspension system hereafter referred to as suspension system needed to be selected. This system allows for better maneuverability both during motion and in place. Design and implementation of a rockerbogie suspension for. Trackmodule bogiesuspension apparatus for attachment to a track module having a frame, a drive wheel and an endless track. One design characteristic that was important is that each side of the suspension can be placed on the other side without alteration. In this article, well explore how car suspensions work, how theyve evolved over the years and where the design of suspensions is headed in the future. Exploration rover concepts and development challenges. Rather, its joints rotated and conformed to the contour of the ground, providing the greatest degree of stability for traversing rocky, uneven surfaces. Bogie frame is a major loaded part of emu running gear. Schaus university of north carolina at charlottegeorgia institute of technology abstract as their capstone senior design experience. The tanks suspension, tracks and wheels are important.
Design and implementation of a rockerbogie suspension for a mining robot wesley b. It involves a list of information on the various parts of a conventional type bogie and also the various advantages of. The main focus of this chapter are the bogie features that are directly or indirectly related to the axlebox application. Oct 23, 2015 rocker bogie suspension has all the qualities needed for traversing the extremely uneven surfaces. Using cameras mounted on the vehicle, a fiveman team of controllers on earth sent driving commands to the rover. When the mars exploration rover mer project was first proposed, the use of a rockerbogie suspension was the obvious choice due to its extensive heritage.
Design and implementation of a rockerbogie suspension for a. Following several technology and research rover implementations, the system was successfully flown as part of mars pathfinders sojourner rover. Rating is available when the video has been rented. These are modular suspensions that allow combinations of 2 tandem, 3 tridem and more axles. Using the uncontrolled rotatron for the bogie pivot. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Railcar bogie performance monitoring using mutual information. The bolster beam is connected to the bogie frame by the secondary suspension. Pdf design and analysis of bogie truck researchgate.
Railway technology today 5 edited by kanji wako how bogies work isao okamoto role of bogie railcar bogies usually go unnoticed by rail. To fit the requirements mentioned in the introduction, this model. Bogie suspension springs have increased durability, endurance and geometrical accuracy, and these features are achieved through the use of a unique manufacturing technology that has no comparable counterpart anywhere in the world. Rubber spring inside coil springs for progressive characteristic. Solid welded bogie frame made up of two longitudinal components connected by two cross beams. Robotic fire extinguishing vehicle with rocker bogie. Centering disc rubber spring inner spring centering outer spring disc minor pad. Introduction handbook on fiat bogie fq,v cksxh ij fq,v. The rockerbogie is the suspension system that enables the rover to climb aggressive obstacles. This was later modified as casnub 22wm to take care of high wheel wear.
A more detailed description of the design is given in 10. A sixwheeled vehicle with rocker bogie suspension can overcome obstacles. I had to weld the arms to the hubs to keep everything together ubiozur welding ltd. The bogie frame rests on the primary suspension spring units and supports. Trailer bogie suspension, view types of trailer suspension. Over the past decade, the rockerbogie suspension design has become a proven mobility application known for its superior vehicle stability and obstacleclimbing capability. The rocker bogie system is the suspension arrangement developed in 1988 for use in nasas mars rover sojourner, and which has since become nasas favored design for rovers. Type of bogie axle load in ton outer spring inner spring snubber spring casnub 22w22wmr etronlnlb nlm 20. Over the past decade, the rocker bogie suspension design has become a proven mobility application known for its superior vehicle stability and obstacleclimbing capability. The challenges of designing the rockerbogie suspension.
The movement of the vehicle is made possible through rockerbogie suspension. The spring nest in the secondary suspension used with this version is different to that of other version. This paper proposes a new dynamic rocker bogie suspension system with two modes of operation. Common types are coil springs, leaf springs and rubber airbags. The flexible wheels allow for high traction as they deform around objects, improving climbing performance. Transfer of coach body weight through bogie side bearer pitched at 1600mm. What are the reasons behind using rocker bogie suspensions in. The rocker bogie suspension system has robust capabilities to deal with uneven terrain because of its distributing of the payload over its six wheels uniformly, while there is one major shortcoming to highspeed traversal over the planar terrain. Railway technical web pages archive page vehicle suspension systems introduction almost all railway vehicles use bogies trucks in us parlance to carry and guide the body along the track. This project involves a detailed study on the bogie and suspension system of an electric locomotive wap4 in indian railways. The image is not accurate but it will suffice the needs for the answer. The rocker bogie is the suspension system that enables the rover to climb aggressive obstacles. The challenges of designing the rockerbogie suspension for.
Four nested springs for primary suspension and two. A bogie is a chassis or framework carrying wheels attached to the train, serving as a modular subassembly of wheels and axles. In addition to its relatively simple structure, it has the advantage of decreasing the impact of track irregularities on the railcar at the car suspension point, in comparison to the singleaxle bogie which transmits the impact to the car directly fig. The bogie, or truck as it is called in the us, comes in many shapes and sizes but it is in its most developed form as the motor bogie of an electric or diesel locomotive or an emu. Most of the rover designs have been developed for mars and moon surface in order to understand the geological history of the soil and. General description this bogie was first fitted in boxn wagons and was designated as casnub 22w. If you have spent your summer holidays in kos island or greece and you wish to make a lovely souvenir to your children or any young friend, then this is the perfect gift. Jan 09, 20 rocker bogie suspension system nikhil vaidya. Looking for downloadable 3d printing models, designs, and cad files. A little project that i was working on a couple days ago. Estimation of bogie performance criteria through onboard.
Design and analysis of a four wheeled planetary rover. In mechanics terms, a bogie is a frame work which carrying wheels attached to coaches. Nov 11, 2016 in indian railways icf boogie is used in all the majority of passenger line coaches. The rocker bogie suspension design has become a proven mobility application known for its superior vehicle stability and obstacleclimbing capability 1. All k suspensions are available in both normalheight and loweredheight versions. Us3263628a bogie suspension for convertible railway. The rocker bogie suspension system from last year remains relatively the same from last year. Heavy duty suspension extremely rigid suitable for off road vehicles operating in rough terrain. Casnub bogie box bogie uic bogie cast steel bogie diamond frame bogie 601. Pdf study on bogie and suspension system of an electric. The wheel assembly attaches the wheels to the motors and mounts the motors to the rest of the rockerbogie suspension system that makes up the robot chassis. Mar 20, 2019 amaryl lids to download pdf you need some things, like my website and the name of the file. Bobo bogie bi axle bogie, axle independently driven it contain 2 axle 4 wheels, 2 tm.
The main ones are bogie design principle parameters, guiding suspension, primary spring and damping principles that are. According to wheel arrangement bogie are to two type mainly. At least one wheelset, composed of an axle with bearings and a wheel at each end. Bogie frame is a y frame fabricated and machined structure. T railway technology today 5 edited by kanji wako how. Bogie 3d models for download, files in 3ds, max, c4d, maya, blend, obj, fbx with low poly, animated, rigged, game, and vr options.
Some of the significant steps in progress are described here. This is the part of a rake which is just adjacent to the tracks. Portal bogie axle for forestry machines axle load of up to 12 t at 30 kmh optimised ground clearance optional use of rigidbogie axles thanks to standardised axle attachment for. Purchase a license to generate pdf files without this notice. The spring combination in different version of the bogies are given below. Not only do they need to be considered for ride quality and flotation as obvious examples, they have less apparent factors on a tanks effectiveness, such as effecting internal space, or providing another layer of armour.
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