Browsing by Author "Jalonen, Risto"

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  • Akku- ja hybridialusten suoritusarvot ja sovelluskohteet
    (2015-08-24) Ainsalo, Ari
     Insinööritieteiden korkeakoulu | Bachelor's thesis
  • Akut laivojen pääasiallisena energialähteenä
    (2015-04-28) Haarakallio, Aleksi
     Insinööritieteiden korkeakoulu | Bachelor's thesis
  • Nyttan av en stabilitetsdator som krishanteringsredskap på passagerar/RoRo-fartyg
    (1999) Lax, Richard
     Helsinki University of Technology | Master's thesis
  • Hazard Identification in Winter Navigation
    (2014) Valdez Banda, Osiris A.; Jalonen, Risto; Goerlandt, Floris; Montewka, Jakub; Kujala, Pentti
     School of Engineering | D4 Julkaistu kehittämis- tai tutkimusraportti tai -selvitys
    In this report, a hazard identification in winter navigation has been performed in order to detect, determine, list and categorize different relevant hazards threatening the safety performance and development of the winter navigation operations. The analysis presented in this report aims to gather all available information from different sources in order to detect hazards for the practice of winter navigation, having a particular consideration of winter navigation hazards of oil tankers operation and/or vessels with similar characteristics. The report introduces the implemented framework to detect the relevant hazards of winter navigation and describes in details the three utilized sources to detect those hazards: hazard identification workshops with winter navigation experts, accident cases analysis, and analysis of accident statistics of 5 winters. Results obtained are presented after the performed collection and data analysis. Finally, discussion and conclusions are drawn.
  • Laivan evakuointisääntöjen vaikutus risteilijäaluksen yleisjärjestyksen suunnitteluun
    (2014-04-28) Takkinen, Esa
     Insinööritieteiden korkeakoulu | Bachelor's thesis
  • Matkustaja-alukset nopeassa yhteysalusliikenteessä
    (2015-04-28) Carlstedt, Jaakko
     Insinööritieteiden korkeakoulu | Bachelor's thesis
  • Pienalusten jäissäkulkukyky
    (2014-11-27) Eronen, Valtteri
     Insinööritieteiden korkeakoulu | Bachelor's thesis
  • Regler för fartygs stabilitet vid olycka
    (2009) Brink, Kristoffer
     Insinööritieteiden ja arkkitehtuurin tiedekunta | Bachelor's thesis
  • Regulatory framework for Arctic cruising
    (2015-06-08) Samouladas, Leonidas
     Insinööritieteiden korkeakoulu | Master's thesis
    For the last 10 years the entirety of the shipping industry has start looking into the melting Arctic for opportunities to expand their activities. Regulatory authorities at the same time try to anticipate issues and address older well known problems in their legal texts. Last year a prominent cruise company had announced their plan to route one of their more luxurious ship for month long cruise through the infamous North Western Pass in Canadian Arctic in 2016. The ship will be biggest passenger ship ever to sail those waters. Meanwhile, IMO for the last 20 years is attempting to fill the regulatory gap of Arctic shipping with a mandatory Polar Code for the first time in regulatory history, a code that is going into effect in the next 2 years. The purpose of this thesis is to review the current legal framework, understand the intricacies and prime motive behind creating it, evaluate its provisions wile comparing them to the documented challenges that the Arctic region is struggling with and propose changes in the current regulatory framework about passenger ships sailing into the Arctic waters. In order to achieve such a lofty goal a long process was started for studding the Arctic regions, geography, climate, history of its inhabitants and the Arctic cruising industry, through all available resources (scientific reports, literature, opinion articles by specialist and more). The knowledge acquired by the process applied into a summary attempt to locate and catalogue the challenges that can be related with Arctic shipping and provide each of the member of that list with a short but thorough justification and background information. Six different categories of challenges were recognised ship safety, environmental protection, passenger safety, infrastructure, cultural and government and law. For each of the six categories a second round of critique went on in order to identify and describe specific problems and finally focused the attention in nine problems that were in some cases combination of challenges from different categories. Specific legal texts related to those nine problems were recognised and studied. Then the problems analysed for their merit to acquire further legal regulation and/or protection by related regulatory provisions. During that analysis the prominent factor of Risk management was recognised as a paramount. For that reason the proposed by the IMO Polar Operational Limit Assessment and Risk Indexing System) was studied and experimentally applied to the ship that will make the cruising trip next summer, with the use of historical Ice regime information and the route schedule provided by the owner company. Finally in the last chapter details the conclusions of the study’s deliberations and exhibits the proposal for regulatory changes for each of the cases.
  • Riskianalyysi ROPAX-aluksen karilleajotapahtumassa
    (2003) Jalonen, Risto
     Helsinki University of Technology | Licentiate thesis
  • ROPAX-aluksen kaksoispohjarakenteen vaikutus karilleajon jälkeiseen turvallisuuteen
    (2002) Yrjövuori, Timo
     Helsinki University of Technology | Master's thesis
    Meriliikenne on yksi suomalaisen yhteiskunnan peruspilareista, ja sen häiriötön sekä turvallinen toiminta on maamme kannalta välttämätöntä. Suomen rannikko on matalaa ja karikkoista, joten pitkissä ja kapeissa väylissä purjehtivat alukset altistuvat suuremmalle karilleajoriskille kuin muualla Euroopassa. RORO-matkustaja-alukset, eli ROPAX-alukset, ovat yleisiä Itämerellä. Niiden kysyntä tulee kasvamaan maailmanlaajuisesti. Työssä tutkitaan miten karilleajo vaikuttaa ROPAX-aluksen turvallisuuteen. Lisäksi selvitetään voidaanko aluksen turvallisuutta parantaa kaksoispohjan rakenteellisilla muutoksilla taloudellisesti kannattavin keinoin. Tutkimuksessa selvitetään miten ympäristö, lasti, liikennöintiprofiili sekä meriturvallisuutta hallinnoivat organisaatiot vaikuttavat ROPAX-aluskonseptiin. Lisäksi selvitetään vaurioturvallisuussäännöt ja yksityiskohtaisemmin tutkitaan niissä esiintyvät vauriosta selviytymisen todennäköisyydet. Tutkimuksessa muodostetaan karilleajoa tarkasteleva malli, jonka avulla pystytään arvioimaan karilleajon vaikutusta alukseen turvallisuuteen. Malli ottaa huomioon karilleajon seurauksen ja taajuuden tulon, jolloin on mahdollista selvittää karilleajon aiheuttama riski. Mallin avulla tutkitaan ROPAX-aluksen karilleajoa erilaisilla yleisjärjestelyillä ja kaksoispohjan rakenneratkaisuilla. Saavutetut tulokset ovat yhdenmukaisia ja niitä pystytään vertailemaan tapahtuneisiin ROPAX-alusten onnettomuuksiin. Turvallisuutta parantaville kaksoispohjarakenteille suoritetaan kustannushyötyanalyysi, jolloin rakenteiden taloudellista kannattavuutta pystytään arvioimaan.
  • Safety of Unmanned Ships - Safe Shipping with Autonomous and Remote Controlled Ships
    (2017) Jalonen, Risto; Tuominen, Risto; Wahlström, Mikael
     School of Engineering | D4 Julkaistu kehittämis- tai tutkimusraportti tai -selvitys
    The main objective of this study is to identify and initially assess relevant safety and security risks with the operation of a general ship under remote or autonomous control, and some selected vessel types chosen for concept level consideration. A focal research question is whether the operations on board a ship can be changed still more towards the directions of automation and/or teleoperation from the safety point of view. The platform of this study is a generic ship. Thus, for the reason of clarity, a review on some common ship type categories is also made, with cargo ships, passenger ships and service vessels included. According to the first, albeit unuttered hypothesis, some sub-category of the ship types listed above may, under some conditions, have some potential for development towards technology demonstration trials and applications in future. However, it is possible, too, that just a few sub-categories of the ship types, or some additional newcomer, may be the most promising platform for the first applications of ship autonomy and tele-operation, in case they are considered feasible and safe for it under certain specified conditions. The research has been based mainly on a review of research literature related to autonomous or remotely operated vessel concepts, and discussions between the authors regarding the implications of the further application of the new technology in selected ship types. The discussions have been supported by the preliminary risk assessment performed by the authors exploring the potential safety implications of increased autonomy on some ship types considered as being conceivable candidates for proof-of-concept demonstrations. Finally, the report provides some high-level recommendations for the early phase of the progress and development of ships with an increased prevalence or share of autonomous or remote control features. The most fundamental limitations of this report are believed to be related to omissions of most economical, ethical, legal, psychological and sociological aspects and viewpoints from the scope of the study, especially with their links and intertwinements with safety and each other. Even some issues related to technology may have not been discussed widely and deeply enough e.g. from the operational point of view. It is believed, that such interacting features and mechanics may have important links to and effects on safety with regard to the studied topic. Thus, they are deemed to deserve closer scrutiny in future. (Author abstract: Risto Jalonen / 21.9.2017) 
  • Selvitys matalan veden vaikutuksista laivan jäissäkulkukykyyn
    (1983) Jalonen, Risto
     Helsinki University of Technology | Master's thesis
  • Validation of a Ship Operational Routing Tool for Ice Conditions
    (2005) Liu, Ming
     Helsinki University of Technology | Master's thesis