Hello everyone, could you pls correct this passage ? In order to verify the proposed method for the transverse vibration of a non-rotating and rotating cantilevered and simply supported Timoshenko shaft with an overhung disk subjected to compressive load, a computer package Matlab is used to establish a calculating code for the expressions (29) and (30). to validate the obtained results, comparisons with the studies in the literature [1, 24-26] are made and excellent agreement between the results is observed. The effects of the rotational speed and the axial force on both the natural frequency and the stability of general overhung rotor systems are investigated and the related graphics are plotted.

English, French and Arabic practice 😊👏👏

can anyone please correct this passage? 1) By treating the shaft as a Timoshenko beam, the influence of the axial load that include: constant force, harmonic force, random force, and so forth on the natural frequencies and mode shapes has been investigated by many scientists and engineers. 2) by treating the shaft as a Timoshenko beam, the influence of the axial load on the natural frequencies and the modes shapes have been investigated by many researchers and engineers. this axial load could be found under many formes like constant force, harmonic force, random force, and so forth

Corrigiez moi ceci s’il vous plait Il vive dans une chaumière à côté d’un champs. il y’a ni électricité ni de l’eau ni du sanitaire, le moins qu’ on puisse dire c’est qu’ une vie primitive pour lui.

Can anyone correct this passage please ? Since the importance of dynamic problems of beams in the design of mechanical structures, the analysis of vibration and stability of no-rotating and rotating shafts under axial loading have been widely investigated. Many structures, such as rotating shafts, satellite booms and spacecraft arms can be modelled as flexible beams. Natural frequencies and mode shapes of such systems are indispensable in the design of such structures. In the vibrational analysis of rotating shafts, the axial load, the rotational speed, geometric aspects, rotary inertia and shear deformation have a considerable effect on the dynamic responses. Generally, based on the Euler-Bernoulli and Timoshenko beam theory, the vibrational behavior of beam structures has been analyzed. It is essential to point out such structural properties in the analysis of structural dynamics and the cancellation of undesirable levels of vibrations.

writing is like spinning (correct my mistakes please ) when writing a novel for example, you have to think about all their aspects in giving theme the balance in between and you have to pay attention to every part of what you are writing. I did a little research about that and I have found this ' writing is like spinning plates' so starting from that sentence which is a metaphor ** if the person can not control the spinning plates, definitely everything will goes down and as a result the show is collapsed, and the reputation of the performer is on the jeopardy.

Personality traits There are different personality types, and it is difficult to classify a person under a single type, as there are many traits that we can possess. those personality traits complement each other and it can be identified by our relationship with others, from our actions and through attitude. As it is clear for all, there are positive personality traits like being honest no matter the consequences, having responsibility, loyalty...etc. In other hand, there are negative personality traits like cowardliness, disloyalty and lying. those attribute are the most that i hate to find in a person.

I want to learn English Hello everyone, I am OMAR and I looking to find a partner who help me to improve my English and I can teach him Arabic in return.