Sökning: "rigid body"

Visar resultat 1 - 5 av 113 avhandlingar innehållade orden rigid body.

1. 1. Body Games : Designing for movement-based play in co-located social settings

   Författare :Elena Márquez Segura; Barry Brown; Annika Waern; Florian Mueller; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Man-Machine-Interaction MMI ; människa-maskin-interaktion MMI ;

   Sammanfattning : The challenge of designing for games and playful activities has moved past the technical, to focus on how to design for a design space where the threads of the digital technologies and the physical world interweave and entangle creating a hybrid fabric where play can take place. But how can we bridge between the digital and physical world where play is enacted and unravel the tangle of this hybrid fabric? How can we braid the digital and digital threads to spur playful experiences? In this thesis, I focus on a concrete fabric of hybrid play: co–located physical and social play, and propose a framework for design in this scenario: the PLAY BOOST framework. LÄS MER

3. 2. Rigid Body Ship Dynamics

   Författare :Martin Alexandersson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Inverse dynamics; Extended Kalman filter; Ship digital twin; Ship manoeuvring; RTS smoother; Multicollinearity; System identification;

   Sammanfattning : It is common today that operational data is recorded onboard ships within the Internet of Ships (IoS) paradigm. This enables the possibility to build ship digital twins as digital copies of the real ships. Predicting the ship’s motions with ship dynamics could be an important sub-component of these ship digital twins. LÄS MER

4. 3. Rigid-Body Attitude Control and Related Topics

   Författare :Johan Markdahl; Xiaoming Hu; Bijoy Ghosh; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Tillämpad matematik och beräkningsmatematik; Applied and Computational Mathematics;

   Sammanfattning : This dissertation explores aspects of control in rigid-body and robotic systems. The first and second paper analyze the attitude stabilization problem and its generalization to n-dimensional rigid bodies. LÄS MER

5. 4. Structure and Motion Estimation in Rigid Body Perspective Dynamic Systems

   Författare :Fredrik Nyberg; Matematikcentrum; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : Abstract This thesis concerns different aspects of recursive estimation of structure and motion in dynamic rigid body perspective systems, where the three-dimensional position of observed object feature points are expressed as states in a system of deterministic or stochastic differential equations describing the object motion, combined with a set of output equations in the form of two-dimensional perspective measurements obtained using a single camera. Firstly, a number of novel hybrid matching constraints are derived for the recovery of motion parameters in a rigid body perspective system where the measurements can be considered as arriving at closely spaced time instants. LÄS MER

7. 5. Child Safety in Car Crashes

   Författare :Marianne Andersson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; reconstructions; near-side; evaluations; frontal impact; rigid body; mathematical simulations; rear seat; finite elements; belt positioning booster; side impact; child safety; child seat;

   Sammanfattning : Traffic related trauma is the most common cause of fatality and severe injury to children in developed countries. The majority of these fatalities and injuries are caused by frontal and side impacts. LÄS MER