Essays about: "rough terrains."

Found 5 essays containing the words rough terrains..

  1. 1. Creating a self-driving terrain vehicle in a simulated environment

    University essay from Umeå universitet/Institutionen för fysik

    Author : Jonas Markgren; [2020]
    Keywords : ;

    Abstract : Outside of the city environment, there are many unstructured and rough environments that are challenging in vehicle navigation tasks. In these environments, vehicle vibrations caused by rough terrain can be harmful for humans. In addition, a human operator can not work around the clock. READ MORE

  3. 2. Design of a Dynamic Boom Suspension System in a Hybrid Wheel Loader

    University essay from Mälardalens högskola/Akademin för innovation, design och teknik

    Author : Ayoub Ayoub; Carl Martin Berg; [2018]
    Keywords : Wheel loaders; passive damming; active damping; dynamic damping; PID controllers; vibrations; hydraulics.;

    Abstract : Wheel loaders are under the influence of low frequency vibrations that may be harmful for the health of the operator, and for the productivity of the machine. The strong vibrations can significantly impact the operation of the machine since they are not equipped with wheel suspension systems and due to their work environment in rough terrains with uneven surfaces. READ MORE

  4. 3. Improved lifetime of a rubber spring in an articulated hauler through product development

    University essay from Linnéuniversitetet/Institutionen för maskinteknik (MT)

    Author : Pontus Nilsson; Jan Tordsson; [2017]
    Keywords : Rubber spring; elastomer; principal stretch; nominal stress; maximum surface stress; lifetime;

    Abstract : Dampening systems are important in heavy vehicles utilized in rough terrains, with purpose to reduce shocks and vibrations with negative influences on the vehicle and, more importantly, on the operator of the vehicle. During the years the heavy vehicles require sturdier construction parts, due to demands on higher load capacity, where the easy solution to scale up the construction parts is not always applicable for dampening systems with nonlinear behavior. READ MORE

  5. 4. Pro-Government Interventions and Civil Wars : Examining Legitimacy-focused Pro-Government Interventions in Asymmetric Civil Wars

    University essay from Uppsala universitet/Institutionen för freds- och konfliktforskning

    Author : Amr Ali; [2017]
    Keywords : external foreign intervention; third-party; external foreign support civil war; asymmetric warfare; hearts and minds; biased intervention; rebel support; legitimacy; territorial control; information-sharing; international relations; rebel rule; rebel sanctuaries; rough terrains.; التدخل الدولي في الحروب الأهلية،التدخل الخارجي، التدخل المنحاز للحكومة، الشرعية، تبادل المعلومات مع الحكومة،التمرد;

    Abstract : External unilateral intervention in civil wars has been always a subject of interest in international relations, especially during the Cold War and after the Bosnian civil war. Unilateral interventions have come to the surface again with recent examples in Syria, Yemen, Ukraine, and Libya. READ MORE

  6. 5. Turbulence Intensity in Complex Environments and its Influence on Small Wind Turbines

    University essay from Uppsala universitet/Luft-, vatten- och landskapslära

    Author : Nicole Carpman; [2011]
    Keywords : turbulence intensity; complex; uniform; small wind turbines; IEC standard classes; normal turbulence model; turbulensintensitet; komplex; homogen; urban; små vindkraftverk; IEC standard klasser; normal turbulensmodell;

    Abstract : The market of wind power as a sustainable energy source is growing, both on large and small scale. Conventional large scale wind turbines normally operate in uniform areas where expected wind speeds and turbulence characteristics are well investigated and the constructional design of the wind turbines is regulated by standard classes for different external conditions. READ MORE