Don't forget those forces/moments you mentioned have both static and dynamic components. For the motor, it (likely) has cogging torques as well as variable torques, and the chain may also have a dynamic aspect ('chain slap'). The bracket itself offers a restoring force and you will have oscillations, damping, and possible resonance conditions. Sounds like a great problem! Good luck.

thanks for the answer sir @David Cope . May I ask again sir?, 1. How to find the magnitude of the force due to chain tension? 2. How is the load applied to the bracket design including torque, chain tension, and the weight of the electric motor on a mechanical ansys without an electric motor design? what to pay attention to, because I'm just learning about ansys workbench simulation.

(I use ANSYS for electromagnetics and do not know the workbench protocol.)

1. The force IS the tension (add both links), 2. I'm not sure. Suggest getting a static solution first, then worry about dynamics. (Personally, after obtaining the static solution, I would increase loading by ~10% to note the reaction and use that to hand-calculate the dynamics, getting an effective spring constant, etc.)

Dear Ma'Ruf Yanuar Effendi:

You may benefit from these valuable articles about your topic:

"Electric Motor Design, Analysis & Verification"

The ANSYS motor design solution delivers robust electromagnetic, thermal and mechanical analyses, combined with power electronic circuit simulation and embedded software tools to analyze the complete motor-driven system.

Whether designing an electric motor for an electric vehicle that needs to be small, efficient and quiet, or for an industrial application where size and sound are not of major concern, it is critical to simulate electric motors early in the design process. Ansys offers a complete workflow that progresses from design sizing options to detailed electromagnetics and thermal and mechanical analyses of the motor. Coupled electromagnetic-thermal-stress-and vibro-acoustics simulation of the motor using Ansys tools results in a high-fidelity, accurate and robust design that is optimized for performance, cost and efficiency.

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"Engineering e-motors Simulation"

https://www.electricmotorengineering.com/category/technology/simulation/

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"How to Model and Simulate Complex Electric Motors. ANSYS BLOG"

https://www.ansys.com/blog/how-to-simulate-complex-electric-motors

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I hope it will be helpful...

Best wishes....