MIT-World Peace University (MIT-WPU) is a top educational institute located in Pune, India. It is recognized within&nbsp;UGC under Government of Maharashtra Act No. XXXV 2017.&nbsp;

It is part of the MIT group of institutions (established in 1983) which covers 10+ campuses across India and has more than 50,000+ students enrolled across various disciplines at a given point of time. The institute houses 15 schools ranging from Engineering &amp; Technology, Design, Pharmacy, Commerce, Governance among others. It offers undergraduate, postgraduate and PhD programs among different disciplines.&nbsp;

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MIT World Peace University

This work investigates the dynamic response of simply supported beam subjected to harmonic excitation by means of rotating unbalance. Passive viscous damper plays crucial role in controlling vibration response of system operating at resonance. Viscous damper containing CuO nanolubricants is used for suppressing the vibrations. Copper oxide (CuO) nanolubricants are prepared by two-stage process, which involves addition of CuO nanoparticles to lubricants and mixing by ultrasonication process for better dispersion stability. Orthogonal array technique is adopted for deciding set of experiments. Experiments are conducted at various speeds and nanoparticle concentrations. RMS acceleration values of the vibrating system are recorded for each experiment. Dynamic performance of the system is compared for various combinations of plain oil, nanolubricants and speed. Results show improved dynamic performance by use of CuO nanolubricants. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

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Lecture Notes in Mechanical Engineering

Dynamic Response of Simply Supported Beam Carrying Rotating Unbalance and a Damper with CuO Nanolubricants

A lower extremity exoskeleton is device which can enhance the human strength and speed while walking and running. It mimics the human gait motion and enhance the endurance of human with help of actuators to carry heavy loads. It can help to carry heavy loads in rough terrain where a wheeled vehicle can't reach. The most prominent option for elderly people and people with walking disabilities such as paraplegia is to use a wheelchair, which is not convenient in every environment. A lower extremity exoskeleton with the particular purpose of either power augmentation or gait assistance can solve this problem. This paper discusses an overview on the historical developments in the field of exoskeleton type system along with the biomechanical considerations and the human gait cycle for the development of a lower extremity exoskeleton and analyses various parameters needed for the design of a lower limb exoskeleton system. The kinematic analysis of human lower limb is studied using Denavit-Hartenberg (DH) parameters. Furthermore, a comparison of the degrees of freedom and their ranges along with the actuators used in various exoskeleton developed is discussed. © 2023