The Experts below are selected from a list of 405 Experts worldwide ranked by ideXlab platform
Gonzalez V.r.v. - One of the best experts on this subject based on the ideXlab platform.
-
Modeling of conveyor, including processes which generate the transport problem
Universidad de Guadalajara (UDG), 2003Co-Authors: Sergueyevich S.v., Rosales M.g.o., Gonzalez V.r.v.Abstract:The paper concerns the analytical method of determining the tension-time function for conveyor chain and the simulation model of closed-loop accumulating conveyor system with merging-splitting configuration. In particular we discuss problems involving functional equations for general chain tension, pulling force and power requirements at the Drive Sprocket depending on service parameters such as through-put, length of queues, waiting time, etc. The life time for conveyor system is determined by fatigue of its parts, caused by an external load, which is random in nature. The designer cannot predict with accuracy what loads the user will subject the conveyor system to. The dynamic loading on a chain, Drive etc, have a complicated structure, which mainly depends on irregularity of the material flow on the conveyor system, the system layout and conveyor interfaces, details of conveyor geometry and operation, etc. In general, accurately determining the load on the conveyor chain is the most difficult task in the design process. In such cases, statistical analysis of experimental data collected from simulation experiment can provide good information for design purposes. The aim of the work is to develop mathematical tools for analysis, modeling and simulation of loading sequences on the conveyor chain
Gerko Hulshof - One of the best experts on this subject based on the ideXlab platform.
-
snap on position limiter for a conveyor belt
2015Co-Authors: Jeff Batchelder, Michael Hendrik Degroot, Friso Antonius Maria Oonk, Laurentius G J Wolters, Edward T Mol, M A Ruizhe, Roel Marcel Mellink, Gerko HulshofAbstract:A conveyor employs a low-tension, direct Drive conveyor belt, and a snap-on position limiter for ensuring proper engagement of the belt and a Drive Sprocket. The position limiter includes a body, a limiting surface and a snap clap opposite the limiting surface for snapping the position limiter to a mounting shaft. The limiting surface may comprise rotatable rollers mounted to the body, or a continuous arcuate surface. The position limiter may include a mounting arm for mounting a conveyor belt scraper at the front of the position limiter.
Allen Hatfield - One of the best experts on this subject based on the ideXlab platform.
-
conveyor with troughed low friction positive Drive belt
2007Co-Authors: James Honeycutt, Allen HatfieldAbstract:A conveyor comprises an endless thermoplastic belt having a substantially flat surface on one side of the belt and a plurality of teeth on the other side of the belt. The teeth are adapted to be Driven without tension around a Drive Sprocket and an idler. The conveyor further includes means to cause the belt to form a longitudinal trough between the Drive Sprocket and the idler to retain conveyed items on the belt. The means can comprise a discontinuity in the teeth, shortened teeth, and/or guides that apply a force to the edges of the belt.
Scholar Craig - One of the best experts on this subject based on the ideXlab platform.
-
Modeling tracked vehicle dynamics using vibration modes.
1999Co-Authors: Scholar CraigAbstract:There is a need for low-order tracked vehicle models that capture the essential features of track vibration. Accurate estimates of track vibration levels are vital to understanding how new track designs can improve track durability, vehicle manuevering, and the noise and vibration environment inside the vehicle hull. Existing multi-body dynamic track models capture track vibration, however, they do so at the expense of model size; that is, the resulting models contain on the order of one to several hundred degrees-of-freedom. In contrast, track models focused on kinematics which assume the track to be a massless band (quasi-static) inherently cannot capture track vibration. The purpose of this study is to develop alternative track models, based on a continuum model for the track, which can be used to support rapid simulations of tracked vehicle dynamics at frequencies characteristic of track vibration. To this end, a hierarchy of models for an example military vehicle have been developed; each subsequent model describing track vibration to higher fidelity through use of increasingly complex continuum elements. These hybrid models contain both continuous and discrete elements and govern the coupled response of the track and the rotational response of the Drive Sprocket, road and idler wheels, and support rollers. Solution efficiency in each of the models derives from the use of modal coordinates, which allows track circuit response to be accurately calculated using a small number of degrees-of-freedom. Results of an experimental validation study confirm use of the continuum approximation in modeling dynamics of the pitched track over a specific frequency range. This conclusion is reached by evaluating the ability of the continuum theory to predict the frequency response of a representative (7-pitch) track span. The most complete continuous track model described in this study captures the coupled transverse/longitudinal vibration of a sagged, translating track element. Free and forced response analyses of a track circuit model based on this element are developed and simulations of track response to excitation sources such as front and rear roadwheel motion and polygonal action are presented. The presence of low frequency vibration modes (near 3 Hz) indicate the limitations of models employing a massless track representation for the example military vehicle considered. Results from a standard bump-course traversal reveal the importance of including track vibration modes in predicting measures of dynamic response, such as dynamic track tension and dynamic contact forces. From this study, it is concluded that continuous track elements can be successfully employed in developing low-order vehicle models capturing dominant low-frequency track vibration.Ph.D.Applied SciencesMechanical engineeringUniversity of Michigan, Horace H. Rackham School of Graduate Studieshttp://deepblue.lib.umich.edu/bitstream/2027.42/132238/2/9959854.pd
Sergueyevich S.v. - One of the best experts on this subject based on the ideXlab platform.
-
Modeling of conveyor, including processes which generate the transport problem
Universidad de Guadalajara (UDG), 2003Co-Authors: Sergueyevich S.v., Rosales M.g.o., Gonzalez V.r.v.Abstract:The paper concerns the analytical method of determining the tension-time function for conveyor chain and the simulation model of closed-loop accumulating conveyor system with merging-splitting configuration. In particular we discuss problems involving functional equations for general chain tension, pulling force and power requirements at the Drive Sprocket depending on service parameters such as through-put, length of queues, waiting time, etc. The life time for conveyor system is determined by fatigue of its parts, caused by an external load, which is random in nature. The designer cannot predict with accuracy what loads the user will subject the conveyor system to. The dynamic loading on a chain, Drive etc, have a complicated structure, which mainly depends on irregularity of the material flow on the conveyor system, the system layout and conveyor interfaces, details of conveyor geometry and operation, etc. In general, accurately determining the load on the conveyor chain is the most difficult task in the design process. In such cases, statistical analysis of experimental data collected from simulation experiment can provide good information for design purposes. The aim of the work is to develop mathematical tools for analysis, modeling and simulation of loading sequences on the conveyor chain
