Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 17 of 17 for “"shock absorber"”.
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Pressurized Metal Bellows Shock Absorber for Space Applications.
… mechanisms, such as crushable aluminum honeycomb shock absorbers or inflatable airbags, to reduce shock loading to the spacecraft during landing. The stationary lander is the simplest type of lander, but can only take data from one location. Wheeled rovers add complexity in exchange for mobility …
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Energy Harvesting Hydraulically Interconnected Shock Absorber: Modeling, Simulation and Prototype Validation
… conventional car suspension system uses isolated shock absorbers that are only capable of dissipating energy in the form of heat. Each shock absorber in a hydraulic interconnected suspension is connected by hydraulic circuits, allowing the electrified hydraulic fluid to be used to counteract …
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Nonlinear dynamic model and simulation of a high pressure monotube shock absorber using the bond graph method
… physics-based model for a high pressure monotube shock absorber is proposed by which the nonlinear dynamic behavior of these dampers can be analyzed. The bond graph technique is used to model these shock absorbers accurately over a wide range of stroking frequencies and to identify the interaction …
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The Use of Simulation to Expedite Experimental Investigations of the Effect of High-Performance Shock Absorbers
… methods are needed. Since investigating shock absorber selection is often the most time-consuming task, this study focuses on developing more efficient methods to select the best shock absorber setups. This study develops a novel method that applies dynamic substructuring and system …
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Talk and text in the organisation of production : perspectives of a "new capitalist" workplace in Cape Town
… plant in Cape Town, South Africa. This shock absorber factory is consciously structured as a ""new workplace"" where the focus in productio is on ""flexible specializatio"" that allows quick shifts to be made between product lines where the focus in the social relations of work is on …
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Combined Time and Frequency Domain Approaches to the Operational Identification of Vehicle Suspension Systems
… experimental suspension system testing. A novel shock absorber force measurement set–up is developed allowing the measurement of shock absorber force under both isolated and operational testing conditions. The quarter car rig is first disassembled and its major components identified in isolation …
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Analysis of hydraulic power transduction in regenerative rotary shock absorbers as function of working fluid kinematic viscosity
… from a vehicle suspension system through the shock absorbers. A regenerative, hydraulic-based, rotary shock absorber was designed and fabricated for the purposes of this investigation. The kinematic viscosities ranging from 100 cSt to 200 cSt were used in the fluid circuit and tested for …
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Investigating the effects of variety on the piston rod manufacturing process at Gabriel SA (Pty) Ltd
… operations system of a automotive component (shock absorber) manufacturer, Gabriel South Africa Pty Ltd. Effective ways to manage this variety are also considered. By variety is meant the total number of possible states that a system can have. The measure of variety can also be considered as …
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Racing Suspension in Rally Motorsports
… to illustrate the racing suspension's shock absorber and its components, is included. Additionally, a mathematical model of the racing suspension system is presented, elucidating the various parts and functions of the suspension systems. Rally racing data is then presented to showcase …
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Design and Development of a Novel Reconfigurable Wheeled Robot for Off-Road Applications
… of a linear actuator connected in series with a shock absorber. Four sets of the elastic actuated mechanism are used to create different robot configurations to adapt to the terrain. Three main aspects were considered in this research in order to extend the ability of the robot to effectively …
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Asymmetric Energy Harvesting and Hydraulically Interconnected Suspension: Modeling and Validations
… suspension system is equipped with isolated shock absorbers that can only dissipate energy by themselves. Hydraulic interconnected suspension uses hydraulic circuits to connect each shock absorber, so that the energized hydraulic fluid can be utilized to counter unwanted body motion to …
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Elastodynamic Analysis of Vehicle Suspension Uprights
… type of suspension used, spring and shock absorber characteristics that are used in the tire properties, static and dynamic loading. Steady-state cornering implies that the forces acting on the vehicle are unchanging for a given time. The suspension uprights form a connection between …
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Comparison of Linear, Nonlinear, Hysteretic, and Probabilistic MR Damper Models
… distributed random signal for velocity to a shock dynamometer and a uniformly distributed random signal for current to a Lord rheonetic seat damper, the force response could be measured. The data from this test is analyzed as a two dimensional signal, a three dimensional force plot in the …
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Magneto-Rheological Dampers for Super-sport Motorcycle Applications
In recent years, a flurry of interest has been shown for a relatively old technology called magneto-rheological fluids, or MR fluids. Multiple types of devices have been designed to implement this versatile fluid, including linear dampers, clutches, work-piece fixtures, and polishing machines. The …
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Behavior of Magneto-Rheological Fluids Subject to Impact and Shock Loading
… concerning MR fluid behavior in impact and shock applications are relatively unknown. To investigate MR fluid properties in this regime, MR dampers were subjected to impulsive loads. A drop-tower test facility was developed to simulate the impact events. The design includes a guided …
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Improvement of the robustness of ballistic helmets to rifle ammunition
En este trabajo se estudian las protecciones balísticas ligeras con las que se podrían hacer un prototipo de casco capaz de detener balas de rifle de forma segura. La protección balística de la cabeza a través de los cascos presenta un nivel inferior con respecto a la protección disponible para el …
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Design Methodology of Electromagnetic Shock Absorbers for Vehicle Suspensions
L'abstract è presente nell'allegato / the abstract is in the attachment