Browsing Research Publications by Author "Ranaweera, RKPS"

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  • C-jae: 3 dof robotic ankle exoskeleton with compatible joint axes 
    Weerasingha, AH; Pragnathilaka, ADKH; Withanage, WPK; Ranaweera, RKPS; Gopura, RARC [Conference-Full-text]
    This paper proposes a three degrees of freedom (DOF) robotic ankle exoskeleton with compatible joint axes, named C-JAE. The device consists of three separate units to achieve triplanar motions. The plantarflexion-dorsiflexion ...
  • Development of a surface muscle pressure monitoring system for wearable robotic devices 
    Chandrasiri, MDSD; Ranaweera, RKPS; Gopura, RARC [Conference-Abstract]
    Monitoring of muscle activities of human limbs is essential for designing controllers of wearable robotic devices such as prosthetics, orthotics and exoskeletons. Human-robot interaction (HRI) is generally studied to ...
  • Development of temperature prediction model for rubber caster wheels using finite elements 
    Wijayasundara, AV; Ranaweera, RKPS; Punchihewa, HKG [Conference-Abstract]
    Caster wheels made with rubber rings fail during dynamic loading as a result of heat buildup. Temperature inside caster wheel increase gradually due to hysteresis effect of rubber material. Therefore, dynamically testing ...
  • Effects of restricting ankle joint motions on muscle activity: preliminary investigation with an unpowered exoskeleton 
    Ranaweera, RKPS; Weerasingha, AH; Withanage, WPK; Pragnathilaka, ADKH; Gopura, RARC [Conference-Full-text]
    The human ankle comprises multiple joints and supports triplanar motions to allow the foot to pronate or supinate during walking. However, ankle exoskeletons are mainly designed to assist propulsion whilst inhibiting other ...
  • A feasibility study on developing stirling engines in Sri Lanka 
    Wickramaratne, C; Ranaweera, RKPS; Perera, ULIU [Conference-Extended-Abstract]
    Global environment protection has come to be more stringent recently, demanding efficient and environmental friendly engines. Adding to the fact of escalating oil prices, Stirling engine could have a major role to play
  • Hipexo: a hip exoskeleton robot for load lifting with flexible trunk linkage mechanism 
    Perera, ULS; Dasanayake, NP; Hettiarachchi, HPT; Mannapperuma, MAVA; Ranaweera, RKPS; Gopura, RARC [Conference-Full-text]
    This paper proposes a hip exoskeleton robot named HipExo to provide power assistance for the industrial workers during stoop lifting activities. It introduces a hybrid actuator to power the hip joints. The electric motor ...
  • A Hybrid powering mechanism for a transtibial robotic prosthesis 
    Sathsara, AKP; Widanage, KND; Nilakshman, S; Ranaweera, RKPS; Gopura, RARC [Conference-Abstract]
    This paper proposes a hybrid powering mechanism for a unilateral transtibial robotic prosthesis named TRoPHy. The device includes both active and passive actuation methods for plantar flexion/ dorsiflexion while inversion/ ...
  • iGrasp Robotic prosthetic hand 
    Widanage, KND; Perera, ULS; Dasanayake, NP; Viduranga, RKP; Siyambalagoda, SAPK; Cooray, TMGCSP; Fernando, KRT; Ranaweera, RKPS; Gopura, RARC [Article-Full-text]
    e are living in an era in which technology is shaping the world at an incredible speed. In this wake, the Bionics laboratory of the Department of Mechanical Engineering of the University of Moratuwa is doing inspiring ...
  • Machine learning-based approach for modelling elastic modulus of woven fabrics 
    Kularatne, SDMW; Ranawaka, RAHS; Fernando, EASK; Niles, SN; Jayawardane, TSS; Ranaweera, RKPS [Conference-Full-text]
    There has been a shift of focus from aesthetic properties to mechanical and functional properties of textiles with the recent developments in technical textiles and wearable technology. Therefore, understanding how various ...
  • Mathematical model and prototype design of an electro-hydraulic camless valvetrain 
    Perera, ULIU; Ranaweera, RKPS; Weerasinghe, WMSR [Conference-Extended-Abstract]
    Presented within is a synopsis of the mathematical model and prototype design & manufacture of an electro-hydraulic camless valvetrain. This valvetrain system was developed for use as a replacement for the conventional ...
  • A robotic hand for rehabilitation of wrist and fingers 
    Weerasoory, WAKC; Kumasaru, URE; Nipun, HMW; De Silva, HHMJ; Ranaweera, RKPS; Gopura, RARC [Conference-Full-text]
    Carpal Tunnel Syndrome is a common neural disease among people with repetitive wrist movements. It affects the sensation and movement of the thumb, index finger, middle finger, and half of the ring finger. The syndrome ...
  • A study on the technological requirement of the small and medium scale footwear industry in Sri Lanka 
    Muthunayaka, APK; Manthilake, MMID; Ranaweera, RKPS; Punchihewa, HKG [Conference-Extended-Abstract]
    The Small and Medium scale Enterprise (SME) footwear industry of Sri Lanka has a long history. However, the technology used in designing has hardly changed over the years. Around the world, research and development is ...
  • Topology optimization to improve structural efficiency of 5000 lb over-center buckle 
    Prabuddha, BGC; Ranaweera, RKPS; Mangala, KHJ [Conference-Full-text]
    Topology optimization for a considerable time has been successfully applied in the field of design for the development of light-weight structures. Especially in the aerospace sector, topology / topography optimization ...