Essays about: "Friction estimation"

Showing result 11 - 15 of 41 essays containing the words Friction estimation.

1. 11. Road friction estimation using an artificial neural network in a simulated environment

   University essay from Lunds universitet/Institutionen för reglerteknik

   Author : Jonas Karlsson; [2020]
   Keywords : Friction estimation; vehicle dynamics; vehicle simulation; artificial neural networks; Technology and Engineering;

   Abstract : With the transition of responsibilities from the driver to the automated driving systems in vehicles, the systems need to have been tested for an extensive list of test scenarios as the passengers require high trustworthiness. The friction coefficient for the tyre-road friction is of high importance for the control of the vehicle but the coefficient is dependent on the physical complexity and nonlinear behaviour of tyres and is difficult to measure. READ MORE

3. 12. Design of a Tribometer to Study Friction inThreaded Fastener Interfaces

   University essay from KTH/Maskinkonstruktion (Inst.)

   Author : Zhan-Jun Lin; [2020]
   Keywords : tribometer; friction coefficient; tightening; pin-on-disc; tribometer; friktionskoefficient; åtdragning av skruvförband; pin-on-disc;

   Abstract : Bolts and nuts are one of most common joining methods since they are simple and low-cost to connect parts. Appropriate clamp force from bolted joint remains resultant joints secured, but higher/lower preload on bolted joint increases risk of the failure of mechanism. READ MORE

4. 13. Simulation and Analysis of Ultrasonic Wave Propagation in Pre-stressed Screws

   University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknik

   Author : Erik Andrén; [2019]
   Keywords : ;

   Abstract : The use of ultrasound to measure preload in screws and bolts has been studied quite frequently the last decades. The technique is based on establishing a relationship between preload and change in time of flight (TOF) for an ultrasonic pulse propagating back and forth through a screw. READ MORE

5. 14. Temporal and Spatial Models for Temperature Estimation Using Vehicle Data

   University essay from Linköpings universitet/Reglerteknik

   Author : Lisa Eriksson; [2019]
   Keywords : Temperature Estimation; Temporal Dependency; Spatial Dependency; Kalman Filter; EKF; Data Fusion; CP; CV; Singer Model;

   Abstract : Safe driving is a topic of multiple factors where the road surface condition is one. Knowledge about the road status can for instance indicate whether it is risk for low friction and thereby help increase the safety in traffic. The ambient temperature is an important factor when determining the road surface condition and is therefore in focus. READ MORE

6. 15. Sensorless collision detection with safe reaction for a robot manipulator.

   University essay from KTH/Skolan för industriell teknik och management (ITM)

   Author : MARTIN GYLLING; [2019]
   Keywords : ;

   Abstract : This thesis is about collision detection and reaction for robot manipulators without joint torque sensors. The method for detecting collisions used by [1], [2] is based on an algorithm that estimates the residual torque i.e. READ MORE