A Review of Human Induced Vibrations on Footbridges

Maraveas, Chrysanthos; Fasoulakis, Zacharias C.; Tsavdaridis, Konstantinos Daniel

doi:10.3844/ajeassp.2015.422.433

Cited by 23 publications

(15 citation statements)

References 33 publications

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“…It can be talked about here by manipulating robots or self-employed robots with a large gauge (Rulkov et al, 2016;Agarwala, 2016;Babayemi, 2016;Gusti and Semin, 2016;Mohamed et al, 2016;Wessels and Raad, 2016;Maraveas et al, 2015;Khalil, 2015;Rhode-Barbarigos et al, 2015;Takeuchi et al, 2015;Li et al, 2015;Vernardos and Gantes, 2015;Bourahla and Blakeborough, 2015;Stavridou et al, 2015;Ong et al, 2015;Dixit and Pal, 2015;Rajput et al, 2016;Rea and Ottaviano, 2016;Zurfi and Zhang, 2016a-b;Zheng and Li, 2016;Buonomano et al, 2016a-b;Faizal et al, 2016;Cataldo, 2006;Ascione et al, 2016;Elmeddahi et al, 2016;Calise et al, 2016;Morse et al, 2016;Abouobaida, 2016;Rohit and Dixit, 2016;Kazakov et al, 2016;Alwetaishi, 2016;Riccio et al, 2016a-b;Iqbal, 2016;Hasan and El-Naas, 2016;Al-Hasan and Al-Ghamdi, 2016;Jiang et al, 2016;Sepúlveda, 2016;Martins et al, 2016;Pisello et al, 2016;Jarahi, 2016;…”

Section: Transport Capacity: 30kn/60kn • M-1000kn/2500kn • Mmentioning

confidence: 99%

Something about a Railbound Forging Manipulator

Petrescu¹

2019

Journal of Mechatronics and Robotics

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Heavy payload forging manipulators are mainly characterized by large load output and large capacitive load input. The relationships between outputs and inputs have greatly influenced the control and reliability. Forging manipulators have become more prevalent in the industry today. They are used to manipulate objects to be forged. The most common forging manipulators are moving on a railway to have greater precision and stability. They have been called the rail-bound forging manipulators. In this paper, one presents the general aspects of a rail-bound forging manipulator, like geometry, structure, general kinematics and forces of the main mechanism from such manipulator. The kinematic scheme shows a typical forging manipulator, with the basic motions in operation process: Walking, the motion of the tong and buffering. The lifting mechanism consists of several parts including linkages, hydraulic drives and motion pairs. An idea of establishing the incidence relationship between output characteristics and actuator inputs is proposed. Self-forging systems have the ability to achieve an open, fast, direct forging of products that are often heavy and heavy but also bulky. Open forging productivity is generally very high, it is determined not only by the capacity of forging press but obviously dynamic handling by forging manipulator. The most prominent and qualitative forging machines are the DANGO and DIENENTHAL series, equipped with high dynamic devices and specially designed to operate on heavy forging presses. They ensure the reliability and repeatability of all forging cycles. Even a modernization of existing forging machines with D&D machines will improve the capacity and quality of these facilities. D&D handlers allow to forge nearly clean shapes and guarantee superior surface qualities, thus saving energy, improving production and saving costs during the machining of parts. Savings due to shorter process times and reduction of reheating cycles result in shorter recovery time.

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Section: Transport Capacity: 30kn/60kn • M-1000kn/2500kn • Mmentioning

confidence: 99%

Something about a Railbound Forging Manipulator

Petrescu¹

2019

Journal of Mechatronics and Robotics

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“…Thirdly, the walking model was only applied on one configuration of floor and the effectiveness of the model on other floor systems is not clear. Hence, further investigations are required to include these parameters statistically since as far as modelling of walking is concerned, a stochastic approach is more appropriate as random walking paths and random parameters are considered [87,88]. In the light of the above discussion, it is obvious that vibration response of floors is sensitive to forcing function and simplified forcing models may not be reliable for assessment of floor vibration serviceability.…”

Section: Probabilistic Walking Models For Individual Pedestriansmentioning

confidence: 99%

Review of Pedestrian Load Models for Vibration Serviceability Assessment of Floor Structures

et al. 2018

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Innovative design and technological advancements in the construction industry have resulted in an increased use of large, slender and lightweight floors in contemporary office buildings. Compounded by an ever-increasing use of open-plan layouts with few internal partitions and thus lower damping, floor vibration is becoming a governing limit state in the modern structural design originating from dynamic footfall excitations. This could cause annoyance and discomfort to building occupants as well as knock-on management and financial consequences for facility owners. This article presents a comprehensive review pertinent to walking-induced dynamic loading of low-frequency floor structures. It is intended to introduce and explain key walking parameters in the field as well as summarise the development of previous walking models and methods for vibration serviceability assessment. Although a number of walking models and design procedures have been proposed, the literature survey highlights that further work is required in the following areas; (1) the development of a probabilistic multi-person loading model which accounts for inter- and intra-subject variabilities, (2) the identification of walking paths (routes accounting for the effect of occupancy patterns on office floors) coupled with spatial distribution of pedestrians and (3) the production of a statistical spatial response approach for vibration serviceability assessment. A stochastic approach, capable of taking into account uncertainties in loading model and vibration responses, appears to be a more reliable way forward compared to the deterministic approaches of the past and there is a clear need for further research in this area.

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“…In fact, this is the robot's humanitarian role and in the future, it can be developed and prepared just for that purpose (Rulkov et al, 2016;Agarwala, 2016;Babayemi, 2016;Gusti and Semin, 2016;Mohamed et al, 2016;Wessels and Raad, 2016;Maraveas et al, 2015;Khalil, 2015;Rhode-Barbarigos et al, 2015;Takeuchi et al, 2015;Li et al, 2015;Vernardos and Gantes, 2015;Bourahla and Blakeborough, 2015;Stavridou et al, 2015;Ong et al, 2015;Dixit and Pal, 2015;Rajput et al, 2016;Rea and Ottaviano, 2016;Zurfi and Zhang, 2016 a-b;Zheng and Li, 2016;Buonomano et al, 2016 a-b;Faizal et al, 2016;Ascione et al, 2016;Elmeddahi et al, 2016;Calise et al, 2016;Morse et al, 2016;Abouobaida, 2016;Rohit and Dixit, 2016;Kazakov et al, 2016;Alwetaishi, 2016;Riccio et al, 2016 a-b;Iqbal, 2016;Hasan and El-Naas, 2016;Al-Hasan and Al-Ghamdi, 2016;Jiang et al, 2016;Sepúlveda, 2016;Martins et al, 2016;Pisello et al, 2016;Mondal et al, 2016;Mansour, 2016;…”

Section: Introductionmentioning

confidence: 99%

About Robotics, Mechatronics and Automation that Help us Conquer the Cosmic Space

Petrescu¹

2019

Journal of Mechatronics and Robotics

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Here we have to mention that all these SF writings and many others that have existed over time, especially in the 20th century, have influenced alongside obvious screenings, young people and not just them, to think more about our role, robots, into a better world. The robot's key role is to help the man make his work easier, safer, more enjoyable, just like a computerized machine that helps us work faster and better, the robot has an obvious role in making work easier, to work in our place when we are tired, when work is exhausting and repetitive, when the environment is toxic, hostile, dangerous and in many other situations. However, it is time to say that the role of the robot in the future is altogether another, namely, to help us conquer the cosmic space to expand ourselves as a race in the whole universe in which we are now. In fact, this is the robot's humanitarian role and in the future, it can be developed and prepared just for that purpose. Exploratory robots are robots that operate in hard-to-reach and dangerous locations, telegraph or partially autonomous. They can work for example in a region in military conflict, on the Moon or on Mars. A geared navigation on the ground in the last two cases is impossible due to distance. Communication signals arrive at their destination in a matter of hours and their reception lasts as long. In such situations, robots have to be programmed with several types of behavior, from which they choose the most appropriate and execute it. This type of robot equipped with sensors was also used to research pyramid wells. Several cryobots (cryo robots) have already been tested by NASA in Antarctica. This type of robot can reach up to 3,600 m through the ice. Cryobots can thus be used in polar head research on Mars and Europe in the hope of alien living. NASA has always said that understanding how to live and work in space for long periods of time has been a key goal of the International Space Station. But, from the White House, it may seem expensive this race around the Earth, considering that the mission costs about $ 8 million a day. Space makes us anxious. We are anxious that things go smoothly as if space flight should be infallible like a flight to London. And we are looking forward to a return on investment. We fly in space because of human ambition, because nothing gives us more resistance than trying to do what we have not done before. And we're flying in space because space is the eighth continent. We may eventually need asteroid or lunar resources, depending on how we manage the resources we have here on Earth. Eventually, we should become a species that will conquer other planets, whether we are no longer inside or that we actually destroy it or it will be destroyed.

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A Review of Human Induced Vibrations on Footbridges

Cited by 23 publications

References 33 publications

Something about a Railbound Forging Manipulator

Something about a Railbound Forging Manipulator

Review of Pedestrian Load Models for Vibration Serviceability Assessment of Floor Structures

About Robotics, Mechatronics and Automation that Help us Conquer the Cosmic Space

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