PDF-Most seismometers detect ground motion using a mass that is suspended

1 Background fashion by a spring When the ground moves the seismometers frame also moves The mass tends to remain relatively still however because of inertia The relative motion of the ma. GROUND MOTIONS FROM SIMULATIONS. 1. Observed data adequate for regression except. close to large ‘quakes . Observed data not adequate for regression, . use simulated data . 2. Ground-Motions for Regions Lacking Data from Earthquakes in Magnitude-Distance Region of Engineering Interest. MEASURING GROUND MOTION. The first known instrument for earthquakes measurement is the Chang seismoscope built in China in 132 B.C. . Balls were held in the dragons’ mouths by lever devices connected to an internal pendulum. The direction of the epicenter was reputed to be indicated by the first ball released.. Physics 7C lecture . 18. Thursday . December . 5. , . 8:00 AM – 9:20 AM. Engineering Hall 1200. Newton. ’. s law of gravitation. The . gravitational force can be expressed mathematically as . . Simple version of Newton’s three laws of motion. Newton’s Laws and the Mousetrap Racecar. 3. rd. Law: “for every action there is an equal and opposite reaction”. Is more mass a good thing or a bad thing for a mousetrap racecar to go far?. Re-Made Version. Coupled Motion. Coupled motion problems are problems in which the movement of one object directly impacts the motion of another object.. We have already briefly covered this topic when talking about pulleys.. 13. S. Akkar and D. M. Boore. Fundamentals. of S. eismology. . &. S. eismic. H. azard. A. ssessment. MEASURES OF STRONG. . MOTION. and. PROCESSING OF DATA. Ground-motion . intensity . measures (GMIMs) for . Plots and Stuff. 1. A plot is. a two-dimensional display. (. it fits on a sheet of paper. ). of. points. or. curves. or. regions. .. Plots and Stuff. 2. Plots and Stuff. 3. (5,8). x. y. (8,22). points. Alan Kafka, Boston College. Michael Hubenthal, IRIS. Did you feel it?. Your Task – Design something to detect seismic waves. Sinkers. empty paper towel rolls. springs. straws. paper. paper plates & cups. The closer an object is to you, the larger it appears. How long are the lines on the road?. . When asked to guess the length of the . lines. from memory, most answered 2 feet. . The real answer is 10 feet.. GROUND MOTIONS FROM SIMULATIONS. 1. Observed data adequate for regression except. close to large ‘quakes . Observed data not adequate for regression, . use simulated data . 2. Ground-Motions for Regions Lacking Data from Earthquakes in Magnitude-Distance Region of Engineering Interest. the . process of moving . or . changing . places . or position. Anything you do while moving is motion.. Fact: Speed is a major type of Motion. Determining motion. In order to determine motion you must know direction and speed. Gravity. Gravity. There’s a lot about you that’s attractive!. At this very moment, you are exerting an attractive force on everything around you. Your desk, your classmates, even planets millions of kilometers away!. (Floor slabs). Department of Architectural Engineering/2. nd. stage. Dr. Zaid Al Hamdany. Introduction. Floors are the horizontal elements which divide the building into different levels for the purpose of creating more accommodation within a restricted space one above the other and provide support for the occupants, furniture and equipment of a building.. (subject 3.2). Peter Novotny. PACMAN . meeting, . CERN, 7 October 2014 . What is . seismic sensor?. . Instrument which measures . ground . motion. .. (Not only earthquakes!). Ground Motion in frequency domain.