post middle age

Chapter 29 Emergency Docking

Ren Shuxia hung up Mr. Zhang's mobile phone. She was a person who couldn't keep things in her heart, and she didn't dare to neglect for a moment. She immediately got in touch with Zhao Wei. Speaking of Zhao Wei, she was also an experienced contact network engineer. She When he first went to work, he worked as a technician under him when he participated in the construction of the electrified railway project on the Qinshen passenger high-speed railway.

It should be said that in the early stage they cooperated in the research and development of the "Automatic Suspension String Production Line" scientific research project, such as: how to break the suspension string, threading, crimping, coding and many other technical issues, this skilled old engineer was not troubled. Now that we have entered the scientific research stage of actually processing hanging strings, what kind of technical problems have stumped this old engineer, and let him report to the group company for technical support in person?

Ren Shuxia didn't have time to think about it, she dialed Zhao Wei's cell phone number, only to hear Zhao Wei's hasty words from the cell phone:
"Mr. Ren, hello. I'm Zhao Wei. I didn't expect our technical problem to alarm you. I'm really sorry to interrupt your normal vacation?"

"Mr. Zhao, you and I still see each other like this. If you didn't encounter technical problems that you can't solve, you wouldn't ask for help from Mr. Zhang of the group company. Tell me, what technical problems are you encountering now?" Ren Shuxia asked anxiously.

"It's like this, Mr. Ren, our branch has received a forwarding notice from the Beijing-Zhangjiakou Sidian Headquarters of our group company, saying that this year's follow-up Beijing-Zhangjiakou high-speed railway catenary will be pre-configured for hanging strings. Our set of "Hanging String Automatic Production Line" To be put into use, because it is the first time that it has been put into field use on a large scale, the leaders of our branch company attach great importance to it and require us to ensure the accuracy of the hanging strings produced by the machine in the laboratory to meet the high-speed rail design requirements and quality acceptance standards. However, we have tested many times. After simulating on-site trial installation of the hanging string produced by the machine, according to the analysis of the actual hanging string measurement data on the spot, it is known that the straightness of the catenary wire cannot meet the high-speed rail quality of ±0.1mm What about the acceptance criteria?" Zhao Wei detailed the technical problems on the phone.

Ren Shuxia knows that the higher the speed requirement of the high-speed rail, the higher the straightness requirement of the contact wires suspended above the railway line, which directly affects the pantograph-network relationship after opening and operation. If this technical problem cannot be solved, then this set of All the hard work and sweat put in before "The Automatic Production Line of Hanging Strings" will be in vain, so her brain is also running at high speed, and she asked Zhao Weifa one after another:
"Is the pre-assembled measurement data of suspension strings accurate?"

"precise!"

"Has the hanging string produced by the machine been compared with the calculated data?"

"The data of each hanging string has been recorded, and the comparison error is within ±1mm." Zhao Wei replied confidently.

Ren Shuxia ruled out the possible errors in her mind one by one, and finally she asked again:

"Is there a problem with the computing software?"

"No way, the calculation formula was compiled by you yourself and approved by the expert group. Besides, when we conducted experiments in the early stage, we didn't find any technical loopholes in the software?" Zhao Wei immediately ruled out Ren Shuxia's proposal technical problem.

"That's weird, where is the problem?" Ren Shuxia began to think hard.

"After the on-site hanging string test installation and measurement results, I made an analysis. The straight line section is more accurate than the curved section, and the curved section looks much better than the anchor section joint?" Zhao Wei cautiously Confidently expressed his doubts.

After hearing Zhao Wei's words, Ren Shuxia suddenly became enlightened, and she said with a smile:

"That's right. According to our previous construction experience in calculating the hanging strings, no matter what software we use, don't the calculated data always have similar technical problems?"

"However, the Beijing-Zhangjiakou high-speed railway is the first intelligent high-speed railway in China. There are as many as 10.4988 pieces of hanging strings installed alone. The lengths of each hanging string are different, and they are all required by millimeter-level errors. The site is not just a straight line section. If the hanging strings produced by our assembly line machine have to be adjusted by the on-site workers as in the traditional construction in the past, then the country's more than 500 million scientific research funds will not be enough. It's a waste of money, how can I afford such serious consequences?" Zhao Wei answered with frustration after hearing Ren Shuxia's explanation.

"Don't you worry? I just analyzed the technical problem. We still have to face it bravely and find the solution to the problem? How about this? I will give our hanging string calculation software to Mr. Li of the Design Institute tomorrow, and trouble him The admiral will simulate the hanging string data calculated by us, and first find out whether there are technical loopholes in this calculation software in theory?" Ren Shuxia said to Zhao Wei.

"Then please trouble Mr. Ren. We will stop the hanging string test work here and wait for your good news." Zhao Wei asked for instructions.

"Mr. Zhao, please send me the relevant on-site hanging string measurement, calculation, and pre-configuration data. By the way, if there are process video materials, please also send them to my QQ mailbox. Carefully ponder at home to see if there are technical problems in other links as well?" Ren Shuxia finally urged.

"Okay, Mr. Ren, I'll sort out the information and send it to your email right away! This technical problem is entirely up to you, Mr. Ren."

"Don't worry, Mr. Zhao, it is not easy for our scientific research project "Automatic Production Line for Hanging Strings" to come to this day. I firmly believe that all difficulties will not overwhelm us, and we will definitely find a solution to this technical problem!" Ren Shuxia encouraged.

"That's good, that's good!" Zhao Wei said repeatedly on the other end of the phone.

(End of this chapter)