Essays about: "Psd vibration"

Showing result 1 - 5 of 11 essays containing the words Psd vibration.

1. 1. Vibration-Based Terrain Classification for an Autonomous Truck

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Lucas Lovén; [2022]
   Keywords : Autonomous vehicles; machine learning; surface identification; obstacle identification; signal processing; time series classification; Autonoma fordon; maskininlärning; detektering av underlag; detektering av hinder; signalhantering; tidsserie klassifiering;

   Abstract : This thesis is focused on developing vibration based terrain classification for an autonomous mining truck. The goal is to classify between good and bad gravel roads as well as good and bad asphalt roads. Current literature within vibration based terrain classification has been focused to a great extent on smaller research vehicles. READ MORE

3. 2. Experimental acceleration Measurements and Finite Elements Modeling

   University essay from Linnéuniversitetet/Institutionen för maskinteknik (MT)

   Author : Ibrahim Alnimairi; Salim Arrabi; [2021]
   Keywords : signal processing. PSD; mode shapes; Mdof; Sdof; PSDT-SVD; finite element modelling;

   Abstract : Heavy crushing machines under their production shifts, creates various levels of vibration, noise and dynamic forces which can be transferred to other parts of the industrial unit. Such kind of factors applies continuous forces on machine parts which can cause gradual fatigue, creep and eventually failure of machine. READ MORE

4. 3. Assessment of optimal suspension systems with regards to ride under different road profiles

   University essay from KTH/Fordonsdynamik

   Author : Adithya Murali; Pratik Hindraj Vaje; [2021]
   Keywords : Ride comfort; Handling; Road profiles; ADAMS; Shaping filter method; Sinusoidal approximation method; Coherence; ISO 8608; Acceleration PSD s; Genetic Algorithm optimisation; ISO 2631.; åkkomfort; Kurvkörningsegenskaper; Vägprofiler; ADAMS; Formningsfiltermetod; Sinusformad approximationsmetod; Koherens; ISO 8608; Acceleration PSDs; Genetisk algoritmoptimering.;

   Abstract : Passenger ride vibration comfort is a critical aspect to consider while developing any vehicle and there is a need to understand how the occupants would be affected when driving on different road profile roughness. Hence, road profile generation is critical as road profiles are used as inputs to simulation tools to investigate vehicle dynamic behaviour in depth. READ MORE

5. 4. Modelling of contacts in Adams flex bodies using Mamba

   University essay from KTH/Fordonsdynamik

   Author : Shashwat Joshi; [2021]
   Keywords : Contact simulation; Mamba; Joint Interface Modes; Leaf spring modelling; Frame-subframe contact; ODS analysis; PSD; Kontaktsimulering; Mamba; gemensamma gränssnittslägen Joint Interface Modes ; bladfjädermodellering; ram-subramkontakt; ODS analys; PSD;

   Abstract : Simulations are a powerful tool used to reduce development time and cost in the vehicle industry. However, the models used in simulations are simplifications of reality, and there are commonly contradicting requirements between accuracy and computational efficiency. READ MORE

6. 5. Finite element analysis of the effects of theCu:CNx nano-composite multilayer coating onto the improvement of cutting tool life

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

   Author : Yang Liu; Rui Wang; [2021]
   Keywords : ;

   Abstract : To verify the effects of applying the shim with nanostructured composite damping coating onto the improvement of cutting tool life, the thesis studies two related aspects, the experiment and finite element software simulation. The experiment part mainly discusses the methods of designing the experiment process and verifying the damping vibration effectiveness of the coated shim. READ MORE