Copy of Hooke's Law Lab

Which of these statements are correct?

vibrations please help

Please help. This problem involves a mass spring damper system. Thank you.

Please answer question number 1.

Question 11: Figure 5 shows a lumped-parameter representation of a concept for a MEMS "tuning fork gyroscope" for measuring angular velocity. Displacements X₁, X2, and x3 are absolute positions of the respective masses and are measured from their static equilibrium positions where there is no deflection in the springs. The system friction is represented by three ideal lumped dashpot elements b₁,b2, and b3. Two external forces f₁ and f₂ are applied to masses m₁ and m₂, respectively. Derive the mathematical model of the MEMS gyroscope. x3 Leto, fi k₁ m3 k3 x1 m1 x2 m₂ f₂ b2

1. a) The equation of motion of a weight, m, attached to a spring and a dashpot damping device is 2 y(t) = e| -2cos 3t –sin 3t 3 where y(t), measured in feet, is the displacement from the equilibrium position of the spring system and is measured in seconds, see Figure 1. Find the initial position and the initial velocity of the weight, m. Give physical interpretations on your answers. y = 0 (equilibrium position) m Figure 1

Vibration Engineering

Answered: T Blackboard @ Texas X Bb MasteringEngineering - Spring 2 × E MasteringEngineering Mastering x > (195) Find the resultant force acti X O (195) Morgan Wallen - Cover i session.masteringengineering.com/myct/itemView?assignmentProblemID=12360390 ABP G I Review Suppose that h = 4 m. (Figure 1) Part C Determine the coordinate direction angle B of the resultant force of the two forces acting on the sign at point A. Express your answer using three significant figures. B = 90 Submit Previous Answers v Correct Part D Figure 1 of 1 Determine the coordinate direction angle y of the resultant force of the two forces acting on the sign at point A. 2 m Express your answer using three significant figures. E 2 m B Hν ΑΣφ ? vec F = 350 N Fc= 400 NA F = 400 N 2 m Submit Request Answer 3 m Provide Feedback Next > 11:50 PM O Type here to search 2/7/2021

Hi second question please. This is an engineering statics problem.

Could you please explain where and what is tight side and also how to find 5-9

Vibrations

Please solve this question in handwritting.  Please step by step in handwritting

1

a) A two-degree-of-freedom coupled pendulum model is shown in Figure Q1a. The parameters of the model are: k=100 N/m; m=10 kg and L=1 m. The equations of motion of the system are given below. J₁ä + (mgL + kĽ² ) 8₁ - kľ² 0₁₂ = 0 J₁₂+(mgL+kĽ²)₂-kĽ² 0₁ = 0 i) Calculate the natural frequencies. ii) Draw the mode shapes. m Figure Q1a. b) In the above system discuss the implications of the following changes in coupling stiffness. i) k is reduced considerably to 0.1 N/m. ii) k is increased considerably to 1x105 N/m. c) Draw a schematic of modal test arrangement of a beam using instrumented impact hammer. d) Why is it necessary to measure force in a modal test?

Kindly show the COMPLETE STEP-BY-STEP SOLUTION, DON’T DO SHORTCUTS OF SOLUTION, so I can understand the proccess.    I will rate you with “LIKE/UPVOTE," if it is COMPLETE STEP-BY-STEP SOLUTION.   If it is INCOMPLETE SOLUTION and there are SHORTCUTS OF SOLUTION, I will rate you with “DISLIKE/DOWNVOTE.”    Topics we discussed:  Statics of Rigid Bodies, Force System of a Force, Moment of a Force, Moment of a Force-Scalar Formulation, Moment of a Force-Vector Formulation, and Principle of Moment.   Thank you for your help.

Solve the problem quick & carefully On a sheet of paper with FBD , Don't copy which might be wrong.

QUESTION 4 Consider a two-degrees-of-freedom system shown below. k₁ www. kz wooo kz -0000 m2 mi What is the amplitude of vibration of mass 1 oscillating at the input frequency? (This is just another way of asking for the amplitude of the particular solution). The answer must be positive. Use scientific notation with 3 significant figures. Omit units. Use m1 = 1 kg m2 = 4 kg k1 = 107 N/m k2 = 135 N/m k3 = 117 N/m = F1 376 cos(3.6t) N F2 = 0.